CLP-260 User Manual
Contents
1. User s Manual TWNDISS3408d T m gt r O C Z Q UV JJ 0 O JJ CLP 260 Digital Speaker Processor Index 11107 PN Page 1 2401715 TUL le Page 2 Controls and ParameleTs rnnr Page 3 CLP260 Processes Page 4 RMS Compressor Page 4 20cc 0e l Page 5 PEAR CIMO ao Page 6 Sub Harmonic Synthesizer Page 7 Input and Output Level Considerations Page 8 10 Geng 17700 tases a Page 11 Encoders and ENTER QUIT buttons Page 12 Load Save Preset Page 12 14 HOLL s d Page 15 EP 1111116 65 ae Page 16 ROUNO EE EN Page 16 fa UG EL bp Page 16 Noise rl Page 16 ER ic Page 17 20 FJ en Page 21 SANN ae Page 22 BA Page 23 RMS Compressor Page 24 25 L Page 25 PEAK Limite T 9000000000 Page 26 BIO EE Page 26 APPEndIX 46 EE Page 27 Input Level Meters Ref Table Page 27 Comprressor Limiter Activity Page 28 29 Meters Ref Table Page 29 CLP260 Processes Block Scheme Page 30 IMPORTANT SAFETY INSTRUCTIONS N Note in order to ensure safe2. Freq this parameter is allowing to select what s the Peak of the Synthesized sub band when selected 24 36 the Peak is centered on 65Hz and the max amplitude is 18 6dBu when instead 36 56 is selected the Peak is centered on 90Hz and the Max amplitude is 15 7dBu Drive within this page is possible to set the signal level BEFORE the RMS compressor Peak detector The Gain can be set ranging between 12dBu and 6dBu by steps of 0 5dBu The Drive is not increasing actually the Input Signal level but just the one of the signal used as reference for the RMS Compressor RMS detector This means that acting on the Drive the Original Input Signal isn t affected but the level seen by the RMS level detector yes Operating on the drive then it is possible to get on the Input Signal a higher level of compression still remaining its level the original one In some way the Drive is allowing to extend of 6dB more the compression range orreduce it of 12dB 23 RMS Compressor the RMS compressor which way of working has been described yet in the introduction can be controlled in its parameters entering the editing screens and scrolling the parameters with the NAVIGATION encoder and setting them with the VARIATION encoder Threshold from this page it is possible to set the Threshold parameters ofthe RMS Compressor Once within the page the RMS Compressor s Threshold can be set by the VARIATION encoder The selectable ra
3. Max Level yr Output Max Level THD N yr S N Ratio yr Frequency Response yr A D and D A Resolution Process Resolution Processes yc Power Supply Adjust Parameters Value Access to Editing Pages and Par Values Confirm Exit from Editing Pages Input Process Overflow Compressor s Ratio and Knee selection RMS Compressor Active Bypass Analog Input Gain Left Right Analog Output Volume Left Right Balanced 2 TRS 2 XLR Balanced 2 TRS 2 XLR 15dBu 10dBu lt 0 01 6dBFS Bypass gt 100dBu Processes in Bypass 20Hz 20kHz 0 5dB 24bit 24x48 bit RMS Stereo Compressor 110V 220V Svvitchable yr 2x20 characters LCD display for the Parameters Editing yc Fully remotely controllable by USB or MIDI interfaces The CLP260 is 8 Stereo RMS Compressor and Peak Limiter with the addition of 8 Noise Gate an AGC 8 7 bands Eq and 8 Sub Harmonic Synthesizer With reference to the following RMS Compression process representation RMS COMPRESSOR Way of ki i ts ay of working main concep In AMP When Out is compressed then the compression angle is lt 45 and the dimension of the added delta w is p depending from the compression amount The RMS cmpressor is applying its action onthe base of the evaluation of the RMS Signal Amplitude value of the signal entering the Compression Area compression process When the Compression Knee s a sudden modification of the Sign
4. RMS compressor to make up the reduced level compressed signal before to enter the Peak Limiter The Gain can be set ranging between 12dBu and 12dBu by steps of 0 5dBu 25 PEAK Limiter the Peak Limiter which way of working has been described yet in the introduction can be controlled in its parameters entering the editing screens and scrolling the parameters with the NAVIGATION encoder and setting them with the VARIATION encoder Threshold from this page it is possible to set the Threshold parameters of the Peak Limiter Once within the page the Peak Limiter s Threshold can be set by the VARIATION encoder The selectable range of the Peak Limiter s Threshold is from 0dBu OFF to 24dBu in steps of 0 1dBu Release from this page it is possible to set the Release Time parameters of the Peak Limiter Once within the page the Peak Limiter s Threshold can be set by the VARIATION encoder The selectable range of the Peak Limiter s Release Time is from 0 1s to 5s in steps of 15 up to 3s and 0 2 from 3s to 5s Attack from this page it is possible to set the Attack Time parameters of the Peak Limiter Once within the page the Peak Limiter s Threshold can be set by the VARIATION encoder The selectable range of the Peak Limiter s Attack Time is from 5ms to 200ms in steps of Ims from 5ms to 20ms then 5ms from 20ms to 30ms then 10ms from 30ms to 100ms and 20ms from 100ms to 200ms Mute w
5. depth refer to the Appendix 1 tables 11 Encoders and ENTER QUIT buttons The CLP260 is equipped with 2 Relative Encoders VARIATION and NAVIGATION These encoders allow to navigate the user interface and edit sections of the processor They allow the user to navigate within the screen for the selection of sub menus pages and parameters and to select the values to be assigned during the editing operations The ENTER and QUIT buttons allow the user to confirm or NOT confirm the operations performed by the encoders Particularly the ENTER button is also allowing to enter the editing pages from the initial Input Level and Compressor Limiter Activity screens The QUIT button is allowing to get back from any editing page to those screens From anyone of the Initial windows the editing menus and pages can be accessed pressing the ENTER button Once left the Input Level and Compressor Limiter Activity windows the screen will show on the top row the currently running preset and it s name and on the lower row the sub menu for the CLP260 functions parameters access and editing Once left the Input Level and Compressor Limiter Activity windows if the currently running preset is the number 16 called DeepCmp the screen will then appear as follow And to access the all sub menus need just to rotate clock counter clock wise the NAVIGATION Encoder The all available Sub menus are
6. is comprised within the Thr Hold and the Cmp Thr Thresholds no further expansion or compression actions will be taken and the expansion compression coefficient will be maintained with its current value Particularly if the averaged AGC output level is entering the signal hold area coming from the expansion area then the Coefficient computed by the AGC for multiplying the input level in order to get the proper output signal will be higher than one if the Exp Ratio will be set at 1 2 so as the coefficient will be lower than one if the Cm Ratio will be set between 2 1 and 16 1 if the averaged AGC output level is entering the signal hold area coming from the compression area The last dynamic process available with the CLP260 is a Peak Limiter useful when the CLP260 is used before an amplifier and need to limit the signal for avoiding the amplifier to overload and break cabinets This kind of Limiter is acting on the Signal Peak detection and therefore the limitation is on the output Peak value PEAK LIMITER Way of working main concepts When Out is limited then the compression angle is 0 The Peak limiter is applying its action on Signal Amp litu de the base of the evaluation of the Peak Limitation Area value of the signal entering the limiting process Lim Ther When In Out then the Original Signal Amplitude limiting angle is 45 Area Amp Zero Out AMP In ad
7. steps of 0 05 Frequency with the VARIATION encoder the cutting frequency of the filter can be set ranging from 20Hz to 20kHz by steps of 1 120ct Amplitude here can be set the filter s gain ranging from 6dBu up to 6dBu Filter 7 the filter 7 is a filter selectable between a 1st 2nd Order Butterworth Low Pass or 8 1st 2nd Order High Shelving or the filter can just be bypassed The parameters selectable using the NAVIGATION encoder are the following Type here the filter type can be selected or just bypassed Frequency with the VARIATION encoder the cutting frequency of the filter can be set ranging from 20Hz to 20kHz by steps of 1 120ct Amplitude if a High Shelving filter is selected here can be set the filter s gain ranging from 6dBu up to 6dBu 21 Sub Harmony the Sub Harmonic Synthesizer is 8 particular process already introduced in the first part of the manual that isn t actually related to the RMS compression one The Sub Harmonic Synthesizer is intended to be an extra process available to the user there where the RMS Compressor is chosen for processing a source addressed to a background use as in clubs or similar There the possibility to have synthesized basses in order to extend the band also when the musical program is poor of harmonics on the low frequencies can help in improving the quality of the background music and to gain a heavier or more vibrant sound The Sub Harmonic Synthesizer is a p
8. CLP260 has a bypass control in the analog domain Input and Output Level Considerations The Input and Output levels of CLP260 can be adjusted by couple of Analog Potentiometers Due to the fact that the potentiometers are operating in the analog domain before the A D converter Input Level and after the D A converter Output Level there is not an absolute and fixed relation between the Input and Output Levels and the levels in front of the A D and after the D A converters Need therefore to provide the user some Absolute reference in terms on Input level and Output level in order to clarify first what are the Max Absolute Input level which cannot be exceeded without getting an Op Amp clip no longer recoverable by any Digital operation In order to help the user in understanding clearly the following paragraphs need to refer to the Input Level and Output Level pictures replicating the Input and Output Potentiometers grids with a more precise detail VIN MAX OUTPUT LEVEL Fig A Fig B The figures A B are showing in details the possible positions of the potentiometers controlling the Analog Input and Output Level Referring then to the above precise divisions of the available range between the MIN and MAX position of the potentiometers the Max Analog Input Output levels can be understood so as the can be found the proper setting for the best use ofthe RMS Compressor In order to verify the Inp
9. Load Preset Loading one of the 32 available presets 16 factory and 16 users Save Preset Store up to 16 user presets Utility Function Communication Interface setting USB or MIDI Edit Parameters Access to the parameters editing of the all CLP260 processes 12 Load Preset this page allows the Loading of 8 preset program from one of the 16factory presets 1 16 or from one of the 16 user presets Preset 16 DeepCmp By pressing ENTER and rotating the VARIATION encoder it is possible to scroll through all current available user presets If the Preset 21 is chosen AGC Fat then pressing the ENTER button the current temporary window will appear and the AGC Fat preset number 21 will be loaded and the sub menu page will be left going back to the previous level updated Preset 21 AGC Fat Save Preset this page allows you to store a new preset and up to 16 in the CLP260 s memory from the location 17 up to the location 32 skipping the locations from 1 to 16 reserved to the Factory presets Preset 21 AGC Fat By pressing the ENTER button and rotating the VARIATION encoder it is possible to scroll through the previously saved presets and the available empty locations identified by Empty If no user presets are stored the Save a Program screen will show empty memory locations for all 17 32 presets as shown in the example below for location 30 13 Save Preset W
10. al amplitude the 2 Compression Knee is 45 Hard otherwise Cmp 1 When In Out then the Original Signal Amplitude compression angle is 45 Area Amp Zero Out AMP The CLP260 is implementing a REAL RMS Compressor so compressing at the same threshold a pure sinusoidal signal as a Squared wave Particularly the RMS Compressor is a Compression process applied with fast slow Attack and Release times to the INPUT signal of a Unit in order to maintain the amplitude of the OUTPUT signal at a defined level when input level is exceeding a defined intervention Threshold The Compressor implemented in the CLP260 is acting on the evaluation of an input signal which is an averaged one on a 50ms time frame and representing actually the RMS value of the input signal itself so to make more Musical the Compressors action The RMS Compressor it is so maintaining constant the output energy and not the Output peak so to have for the different inputs independently from their harmonic content a constant output RMS level More for the CLP260 Compressor is also available a Ratio and a Hard Soft Knee parameters The Ratio parameter is allowing to get a compressed output maintaining a constant dB ratio with the input This feature is got in the CLP260 with a precise Look Up Table Log Computation process allowing int the ratio maintenance a precision of 0 1dBu The Hard and Soft knee feature is allowing the user to sele
11. ct between 8 sudden compression intervention when the input signal it is just above the Threshold Hard Knee or 8 smoother one starting the compression smoothly before the Threshold Together with the RMS Compressor the CLP260 is making available also other 2 very useful Dynamic Processes an AGC and a Peak limiter In order to understand how the CLP260 AGC is working need to refer to the following picture AGC Automatic Gain Controller Way of working main concepts Max Amp In AMP When Out 8 compressed then the compression angle 8 lt 45 and the Signal Amplitude dimension of the added delta w is Compression Area depending from the compression amount Cmp Thr When in the Signal Amplitude Hold area the current ratio between the original Signal Amplitude signal amplitude and the When In the Signal Holding Area expanded compressed Amplitude Hold area one is maintained the Ratio is constant and the compression angle goes back to be 45 Thr Hold WhenOut is expanded then the compression angle 8 gt 45 and the Siqnal Amp litu de dimension of the added delta is Expansion Area depending from the expansion amount Exp Thi When In Out then the Original Signal Amplitude compression angle is 45 Area Amp Zero Out AMP The AGC is an Expansion Compression process applied with pretty slow Attack and Release times to the INPUT signal of a Unit in order to maintain the avera
12. dition to the Dynamic Processes in the CLP260 is also available a powerful Sub Harmonic synthesizer The Sub Harmonic Synthesizer is working generating sub Harmonics on the base on the Harmonic content of the original signal Particularly the amplitude distribution of the generated Sub Harmonics is following the shape of a band pass filter set on the low part of the band The peak of this band pass filter is centered on 2 possible frequencies 60Hz and 90Hz this means that when selected the frequency range setting the Sub Harmonics Amplitude Peak on 60Hz 24 36Hz the Harmonics added to the original sound will bring a deep and very low extra body to the original sound When selected the frequency range setting the Sub Harmonics Amplitude Peak on 90Hz 36 56Hz the Harmonics added to the original sound will bring a lighter and more booming extra body to the original sound Original Signal Band 20Hz 40Hz S00Hz 20kHz Synthesized Sub Hannonics Bands 20Hz 6858290442 250 2 2 Original Sub Hannonics Bands 20Hz 40Hz65Hz90Hz 250Hz 500Hz 20kHz Finally in order to adjust harmonically the Input signal a 7 bands Eq is available where the first of the 7 filters can be chosen to be 1st 2nd ord HP or Low Shelving the seventh one can be chosen to be 1st 2nd ord LP or High Shelving and the other 5 from the second to the sixth can be chosen to be 1st 2nd ord High Shelving or Peaking The
13. e before the CLP260 processes Referring to the following picture Input Level Meters A B HERRER 4 m c ii om The Table here below is showing then the relation between the Input Level Meters and the absolute Input Level after the A D converter and the before the CLP260 processes 27 Meter Bar Input Level 0dBu Red Clip Led 9 28 On the same principle of the Input Level Meters are working and providing information the Compressor and Limiter Activity Meters On the base of the following picture Compressor Limiter Activity Meters 2 bu Si a r Ac AIB TIL The following table is showing the relation between the Compressor Limiter Activity bar meter and the depth in dBu of the compression Limiting action The displayed Compression Limiting action is from top to down in the LCD case from right to left indicating the reduction of level operated by the Compression Limiting Actions Compression Limiting in dBu No Activity 0dBu No Compression Limiting 29 CLP260 Processes Block Scheme lt Wed 3 4 yed LUD ndul H3 ndug 1143 405594 102 094935 pueg 9 15 JE3I IQ 014 09 12 50 China Office 4 5Floor Building B No 885 Shenzhou Road Science City Guangzhou China Tel 86 20 62845258 59 60 Fax 86 20 62845256 C 7 uns Http www marani com cn
14. e the VARIATION encoder to set the value The following is an example screen for the AGC Cmp Thr page where the Compression Threshold is set to 3dBu AGC Thr Hold from this screen it is possible to set the AGC Threshold of the AGC Signal Hold area from 69 dBu up to 1dBu use the VARIATION encoder to set the value The following is an example screen for the AGC Thr Hold page where the Threshold of the Signal Hold area is set to 40dBu 19 426 Exp Ratio from this screen it is possible to set the AGC Expansion Ratio from 1 up to 2 use the VARIATION encoder to set the value When the Expansion Ratio is set to 1 actually there is no possibility to expand the signal meaning that the signal amplitude can be multiplied for a coefficient not higher than 1 Ifthe Expansion Ratio is set to 2 the signal can be expanded up to a max amplitude that is twice the original one The following is an example screen for the AGC Exp Ratio page where the Expansion Ratio is set to 2 and the Signal can be expanded up to the double of its original amplitude AGC Cmp Ratio page from this screen it is possible to set the AGC Compression Ratio from 1 up to 16 use the VARIATION encoder to set the value When the Compression Ratio is set to 1 actually there is no possibility to compress the signal meaning that the signal amplitude can be multiplied for a coefficient not smaller than 1 If the Co
15. e to adjust the Input Level digitally after the A D converters ranging from 12dBu up to 6dBu by steps of 0 5dBu The adjustment can be operated using the VARIATION encoder Noise Gate from this page it is possible to set the parameters of a Noise Gate placed at the beginning of the all dynamic and Eq Processes Threshold the Noise Gate Threshold can be set as 80dBu 85dBu 90dBu or as OFF when OFF the Noise Gate is just bypassed Release Time it is the time taken by un muting the output once detected again an input signal over the set threshold can range from 5ms to 100ms by steps of 1ms up to 10ms and of 10ms from 10ms up to 100ms Attack time is the time taken by the Noise Gate to enter the Output Mute condition once the input signal is detected to be below the Threshold can range from 0 5 seconds up to 2 seconds by steps 0f 0 1 seconds The adjustment of the parameters can be operated using the VARIATION encoder 17 Note for the all Dynamic Processes as the AGC RMS Compressor and Peak Limiter it is necessary in order to make them working properly to be ina condition similar to the one described before for the 0dBu path Any different condition on the Input Signal can bring to the same output results if the Input Level Potentiometer will be Adjusted in order to be close to the Input Clipping condition which means that if the Input Signal will be lower higher than 0dBu the potentiometer will have to adjust the in
16. ge amplitude of the OUTPUT signal at a defined level independently from the averaged amplitude of the input sources For this purpose the AGC has to be able to expand the input signal there where the average of the related output signal is below a defined Threshold Exp Thr and to maintain the expanded signal at a constant expansion level when the averaged signal is beyond a defined Threshold Thr Hold The AGC implemented in the CLP260 is acting on the evaluation of an input signal which is an averaged one on a 50ms time frame and representing actually the RMS value of the input signal itself so to make more Musical the AGC action If the output signal of the AGC process will exceed then a defined Threshold Cmp Thr so becoming too loud a compression process is occurring The Speed and the amount of the Expansion can be defined through the Exp Time and Exp Ratio parameters so as the Speed and the amount of the Compression can be defined through the Cmp Time and Cmp Ratio parameters When the Signal coming out from the AGC process Output applied to the AGC input is above the Exp Thr and below the Thr Hold it is expanded up to the max expansion coefficient defined by the Exp Ratio When the Signal coming out from the AGC process Output applied to the AGC input is above the Cmp Thr it is compressed up to the min compression coefficient defined by the Cmp Ratio When the AGC output
17. hen storing an edited configuration for the CLP260 select the location for a preset from the 16 available by using the VARIATION encoder Once the desired location appears on the screen press ENTER again to reach the Edit Name Preset page If the location number 30 is ok in example then the screen will be the following Edit Name Preset In this page the User can enter a Preset Name up to 16 Characters by using the VARIATION encoder to choose a character and the NAVIGATION encoder to move between the 16 available locations for the character s positioning The current position of the cursor is shown by a blinking underscore To store the Preset Name press the ENTER button again The above action will take you to the Enter to Save page showing the selected location for the preset and the final edited name in example LightCmp Enter to Save iqhtCmn Pressing ENTER again will store the preset in the selected location with the chosen name and the follovving transitory screen vvill appear on the LCD 14 Utility Function this sub menu allows to define the remote control interface USB or MIDI to be used for controlling the CLP260 Preset 30 LightCmp From Interface Utilities press ENTER to access the Config Communication page allowing to choose the remote control protocol for the CLP260 By pressing ENTER and then using the VARIATION e
18. ithin this page is possible to set in Mute or not the output of the currently edited Channel 26 In order to use properly the indications of the Input Level Meters it is necessary to notice that the Input level to the CLP260 it is not considerable an absolute information due to the fact that before the A D converter the absolute Input Level can be adjusted by the analog potentiometer Input Level For this reason the meters of the Input Level Display on the LCD are intended to show what s the Input Signal Level detected by the DSP after the A D conversion considering as 0dBu the Maximum Input accepted and converted by the A D On the base of the above the following table is providing the relation between the Input Level meters and the Signal Level in the digital domain before the CLP260 processes assuming not clipped the Signal after the A D Therefore it is important in order to have reasonable indications from the Input Level meters to make sure the Input signal isn t clipped Here we remind that the Input Signal Clip is occurring when the Absolute Input Signal is exceeding the 15dBu Clip on the Op Amps before the A D converter or when the Red Clip led is turning On Setting then the CLP260 in a OdBu Path condition see the introduction for the OdBu Path definition setting the following table show the relation between the Input Level Meters and the absolute Input Level after the A D converter and th
19. l be limited at 10dBu lower RMS level 10 Getting Started As soon as the CLP260 is turned ON the device model name will appear inthe LCD screen And after showing quickly the Firmware Version 2 212 the LCD will show the Input Level Page by default where is possible see thanks to graphic meters the Input level When the Input Level is in clipping the symbol gt will appear as for the channel Bin the example From this initial condition and if an RMS Compressor or a Peak Limiter or both are set to be active their compressionv limiting activity can be seen thanks to a Compressor Activity and Limiter Activity windows accessible from the Input Level one just rotating the NAVIGATION encoder clock counter clock wise If in example from the Input level window the user want to see the RMS Compressor s activity it is enough to rotate the NAVIGATION Encoder clockwise twice so accessing the following screen Where the compression activity is shown from right to left matching the depth of the compression on the base of the Compression Coefficient Value if the coefficient is equal 1 then no compression is occurring and no bars are displayed if the coefficient is lt 1 then as more the coefficient is far from 1 as more from right to left bars will appear For the relation between the bars in the Input Level Compression Limiting Activity windows and the Input signal level and compression
20. mpression Ratio is set to 2 or more the signal can be expanded up to a min amplitude that is depending from the ratio and can reach the 1 16th of the original signal amplitude The following is an example screen for the AGC Cmp Ratio page where the Compression Ratio is set to 4 and the Signal can be compressed up to 1 4th of its original amplitude 20 Filters 1 7 the CLP260 is providing also a 7 bands Eq For the adjustment of the Input Signal Particularly the first filter of the Eq Can be selected to be a 1st 2nd Ord Hp or a 1st 2nd Ord Low Shelving the seventh filter can be selected to be a 1st 2nd Ord Lp or a 1st 2nd Ord High Shelving and the filters from the 2nd to the sixth are Peaking ones Filter 1 the filter 1 is a filter selectable between a 1st 2nd Order Butterworth High Pass or a 1st 2nd Order Low Shelving or the filter can just be bypassed The parameters selectable using the NAVIGATION encoder are the following Type here the filter type can be selected or just bypassed Frequency with the VARIATION encoder the cutting frequency of the filter can be set ranging from 20Hz to 20kHz by steps of 1 120ct Amplitude if a Low Shelving filter is selected here can be set the filter s gain ranging from 6dBu up to 6dBu Filter 2 6 the filter 2 6 are Peaking filters The parameters selectable using the NAVIGATION encoder are the following Q Type here the filter s Q can be set ranging from 0 05 up to 2 00 by
21. ncoder can chosen between the two possible interfaces USB or MIDI for the CLP260 Particularly a MIDI channel from 01 to 15 can be selected or the USB interfaces Config Communication Once selected the desired interface a double click on the QUIT button is allowing to go back to the original menu NOTE the QUIT button once pressed as many time as necessary will bring back to the top LCD level which is the one displaying the Input Level or the Compressor Limiter Activity 15 Edit Parameters this sub menu the all parameters related to the signal processes of the CLP260 are available for editing Pressing the ENTER button the all processes can be accessed for editing With the NAVIGATION Encoder the all processes can be scrolled and from the Edit Parameters Sub Menu the CLP260 channel can be selected for editing simply rotating clock counter clock wise the VARIATION encoder Once entered the Edit Parameter Sub Menu the screen will show the following In the case above editing the all parameters edited are referred to the Channel A ChA for editing the processes referring to the Channel B ChB it is enough to rotate the VARIATION encoder and the screen will show the following Indicating that the Parameters will be edited will refer to the ChB process and Output It is also possible select the Ch A B and in this case the all edited parameters will be assigned with
22. nge of the RMS Compressor s Threshold is from 0dBu OFF to 24dBu in steps of 0 1dBu Ratio from this page it is possible to set the Ratio parameters of the RMS Compressor Once within the page the RMS Compressor s Threshold can be set by the VARIATION encoder The selectable range of the RMS Compressor s Ratio is from 1 1 Off up to 32 1 Lim in steps of 1 H S Knee from this page it is possible to set the Knee type of the RMS Compressor Once within the page the RMS Compressor s Threshold can be set by the VARIATION encoder The selectable range of the RMS Compressor s Knee type is from 0 Hard up to 100 Soft by steps of 1 24 Release from this page it is possible to set the Release Time parameters ofthe RMS Compressor Once within the page the RMS Compressor s Threshold can be set by the VARIATION encoder The selectable range of the RMS Compressor s Release Time is from 0 1s to 5s in steps of 0 1s up to 3s and 0 2 from 3s to 5s Attack from this page it is possible to set the Attack Time parameters of the RMS Compressor Once within the page the RMS Compressor s Threshold can be set by the VARIATION encoder The selectable range of the RMS Compressor s Attack Time is from 5ms to 200ms in steps of Ims from 5ms to 20ms then 5ms from 20ms to 30ms then 10ms from 30ms to 100ms and 20ms from 100ms to 200ms Make Up within this page is possible to set the signal level AFTER the
23. position 3 up to the position that is clipping the A D converter With 15dBu Input the position of the Input Level Potentiometer at the limit of the Input Clipping is the position 6 of the Input Level grid of Fig A Once set then the Input Level Potentiometer to the position 6 in order to find out the Max Output Level achievable with the CLP260 need to set the Output Level Potentiometer to the position Max The Max output Level that can be found is 10dBu if measured with an Audio Precision or similar measurement tools CLP260 Signal to Noise Ratio S N from the condition got for the Max Analog Output verification can be go the S N of the CLP260 If with the Max Output Level of 10dBu the Input Signal Is removed measuring the output can be seen that the residual Ground Floor Noise drops to 92 7dBu which let us say that the S N Max Output GND Floor Noise 10dBu 92 7dBu 102 7dBu Analog Bypass de pressing the On Off Process button the Analog Bypass can be activated In this condition the CLP260 is bypassing the Digital section and connecting the Analog Input to the Analog Output Here the Max Output is reaching the 10 4dBu with a GND Floor Noise of 92 3dBu bringing the S N of the unit to 102 7dBu Set Input and Output Potentiometers for a 0dBu Input Output path in order to evaluate the performances of the CLP260 RMS Compressor we ll set a 0dBu path and to that one we ll refer the all measurement we ll
24. put to the A D converter so to go back to a OdBu condition as the one used as reference A G C from this page it is possible to set the parameters of the Automatic Gain Controller AGC Bypass from this screen it is possible to set the AGC On or OFF so to activate it or not without resetting the all parameters use the VARIATION encoder for toggling the AGC Bypass On Off The following is an example screen for the AGC Bypass page where the AGC is set Active AGC Exp Time from this screen it is possible to set the AGC Expansion time from 0 057 seconds up to 14 4 seconds use the VARIATION encoder to set the value The following is an example screen for the AGC Exp time page where the Expansion Time 15 set to 1 55 AGC Cmp Time from this screen it is possible to set the AGC Compression time from 0 014 seconds up to 6 seconds use the VARIATION encoder to set the value The following is an example screen for the AGC Cmp time page where the Compression Time is set to 0 5S 18 AGC Exp Thr from this screen it is possible to set the AGC Expansion Threshold from 70 dBu up to the Hold Threshold Value use the VARIATION encoder to set the value The following is an example screen for the AGC Exp Thr page where the Expansion Threshold is set to 50dBu AGC Cmp Thr from this screen it is possible to set the AGC Compression Threshold from Hold Threshold Value up to OdBu us
25. rocess synthesizing the first lower harmonic of the frequencies ranging from 40Hz to 500Hz detected in the Original signal This means that there where in the original signal are detected frequencies from 40Hz to 500Hz sub harmonics from 20Hz to 250Hz are generated Origina Signal Band 20Hz 4042 ZOO Z 20 amp Hz Fig F As can be seen in the Fig F however the synthesized sub harmonics are not generated in the low harmonics band with the same amplitude but with a Peak on 65Hz or on 90Hz and then with decreasing amplitude going up from 65Hz 90Hz to 250Hz and down to 20Hz 22 This is due to the fact that extend the same amplitude to the all sub harmonics generated would bring to a booming and dark result there where having a Peak on the 65Hz 24 36 or 90Hz 36 56 will leave the max intensity of the synthesized sub harmonics in correspondence of the original fundamentals ranging around 130Hz and 180Hz where typically fall the octave used by the harmonizing instruments as the Bass or Kick Drum creating there 8 bigger presence and giving the music that much sought after punch The all available Parameters of the Sub Harmonic Synthesizer accessible by the Unit s Front panel using the NAVIGATION encoder for scrolling them and the VARIATION encoder to set their value are the following Percent With this parameters can be set the amount of Sub Harmonics generated will be added to the original Signal
26. show for making understanding the Unit s way of working What anyway will be shown will remain valid for any input level value there where with the Input Level Potentiometer the signal to the A D will be adjusted so to be close to the Clipping notified by the RED CLIP Led or by the symbol gt Input Level page on the LCD In order to be on a OdBu Input Output path when the Unit is in Process Bypass need from the previous condition to set the external Analog Input Signal to OdBu In order to get in Output also 0dBu being at the maximum A D Input level need to set the Input Level Potentiometer to 7 of the Grid of Fig A and the Output Level Potentiometer to the position 7 of the Grid of Fig B The Input Level page on the LCD will just stop a step before the showing of the gt symbol To the 0dB path condition are referred the AGC RMS Compressor and Peak Limiter s Thresholds that when set to 0dB are meaning that the processes are not active being the Threshold set at the maximum input level to the unit which cannot be exceeded impeding therefore any compressing limiting process This means the the 0dB threshold of the AGC RMS Compressor and Peak Limiter processes are related to the max Input level and therefrom has to be evaluated the threshold set when using a threshold different from OdBu in example a 10dBu Threshold on the RMS Compressor means that starting from an input reaching the max input level this input wil
27. the same value to the Channel A and B linked In the Editing Parameters Sub menu the all available processes are Routing is allowing to assign the the currently edited channel processes the Input B or the Sum A B 2 Input Gain Digital control of the Input level Noise Gate A G C yc Filter 1 Filter 7 Eq where the filter 1 is selectable as 1st 2nd Ord HP OR Lovv Shelving and the filters from 2 to 7 as 1st 2nd Ord High Shelving OR Peaking Sub Harmony Sub Harmonic Synthesizer centered around 65Hz or 9082 Drive Signal Control before the RMS Compressor RMS Compressor Volume Make Up Volume after the RMS Compressor and before the Peak Limiter Peak Limiter Mute Output Channel Muting 16 In order to edit the parameters of any single process it is enough to enter the process editing page by pressing the ENTER button and leaving it once finished the editing by pressing the QUIT button for going back to the Editing Parameters sub menu and selecting the new process to edit scrolling the all processes with the NAVIGATION encoder Routing from this page it is possible to assign anyone of the 2 inputs of the CLP260 to the currently edited Channel s processes and Output So it is possible to assign to the processes of the Channel A and its Output the Input A B or A B 2 The selection can be operated using the VARIATION encoder Input Gain from this page it is possibl
28. ty please read these instructions carefully All safety and operating instructions should be read before the product is operated A Attention To reduce the risk of fire or electric shock do not expose this apparatus to rain or moisture Ventilation Do not block any ventilation Openings Cleaning 5 Clean only with dry cloth Heat sources Do not install near any heat sources such as radiators stoves or other apparatus that produce heat bz Povver cord proctecion Protect the povver cord from being vvalked on or pinched particularly at plugs Overload Er Power plug should K not overload Objects or liquid entry inside the unit Be careful that no objects fall or liquid is spilled inside the unit through ventilation openings x Humidity The unit should far avvay form vvater yo SEG Maintenance Refer all servicing to qualified service personnel To prevent the risk of shock do not attempt to service this equipment yourself because opening or removing covers may expose you to dangerous voltage or other hazards CLP 260 RMS Stereo Compressor 4 lu NN ewe INPUTS F al q RIGHT OUT Ma RIGHT IW __LEFT_ IN J CONTROLS yc Enc Variation vc Key Enter yc Key Quit vc Led Clip yc Enc Navigation Button Process On Off Pot Input Level Pot Output Level TECHNICAL DATA yc Inputs yr Outputs yc Input
29. ut Output Max Levels of the CLP260 need first to make sure that NO process is active Max Analog Input in order to understand what can be the maximum Analog Input level to the unit which is the one before the clipping of the Op Amps in front of the A D converters need to make sure that no Digital clip DSP process is occurring The output will never clip unless the clip is coming from the digital process This means that if the D A output isn t clipped then no clipping will come from the Analog Op Amp output section From this point of view any position of the Output potentiometer for evaluating the Max Input level can be set Let s consider to set the output potentiometer to the position 5 of the grid in Fig B Now to define what is the Max Analog Input level need to set the Input Level potentiometer to a position granting enough attenuation of the signal before the A D so to make sure no clip is occurring on the A D side Let s set the Input potentiometer to the position 3 of the grid of Fig Done this we can increase progressively the Input signal level until the output will start to clip or the Input Level displayed on the LCD will not show the gt symbol In this way can be found that the Max Input level before to get the Input Op amps clipping is 15dBu Max Analog Output once set the Max Input Level to 15dBu in order to identify the Maximum Output Level need to move the Input Level Potentiometer from the
Download Pdf Manuals
Related Search