ISA430 - InPhase
Contents
1. Mic Connector Signal O perating Level Maximum 1 Level Gain Range Input Impedance N oise input resistance THD Post Mic OP Connector Signal O perating Level Maximum O P Level 10KQ 96dBu 0 003 with OdBu 1kHz input and 20Hz 22kHz bandpass filter XLR Balanced T ransformer 4dBu 26dBu 6 to 60dB in 6dB steps 1k2Q 123dB EIN with 1500 at 60dB of gain 0 0008 XLR Balanced 4dBu 26dBu Signal is routed directly from the Preamp after the gain stage trim and phase reverse circuits of the input section and can be fed from the Mic Line or Instrument 1 Connector Signal O perating Level Maximum O P Level XLR Balanced Transformer 4dBu 26dBu Signal is the transformer output stage Ext A D Direct 1 P Connector Signal O perating Level Maximum 1 Level Int A D Direct I P Connector Signal Maximum 1 Level Warranty XLR Jack Balanced 4dBu 22dBu 0dBFs TRS Stereo Jack Balanced 22dBu 0dBFs All Focusrite products are covered by a warranty against manufacturing defects in material or craftsmanship for a period of one year from the date of purchase Focusrite in the UK or its authorised distributor worldwide will do its best to ensure that any fault is remedied as quickly as possible T his Inserting the jack breaks the connection of the A D input from the signal path and routes the signal from the jack direc2. Out 0 P MODE 1 STANDARD Transformer 0 P T xir SUM P LIMITER gt METER 0P Analogue LEVEL Out Mix External Signal EXT into Internal Signal A D Digital CARD Transformer 0 P d 0 P Analogue LEVEL Out INT DIRECT gt LIMITER gt METER TO A D A D p Digital CARD Out UE p LIMITER METER J 0 P MODE 3 A D DIRECT Applications Super Clean Recording ANN Record Channel This example shows the ISA 430 being used for mic or guitar recording The insert point may be used to add external processing in line if required Record Digital with 0 P Transformer in circuit This example shows how to record from Mic or Line Inst inputs to the A D routing the audio through the output transformer In normal use the Int A D Direct input feeds the limiter and meter then routing directly to the A D card Requires optional ISA 430 D igital O utput Board Stereo A D Converter DIGITAL ANALOGUE QUT a The optional A D card is a stereo device which can convert two tracks simultaneously Stereo conversion can be accessed by connecting the two audio signals into the EXT A D DIRECT and INT A D DIRECT inputs directly accessing the A D inputs via the limiter and digital meters The INT input of the A D can also be connected in the normal way via the Line I P if additional mono processing EQ and Dynamics were required on the signal or if du
3. 54430 user s manual Focusrite audio engineering Introduction hank you for purchasing the 154430 brought to you by the Focusrite team Trevor Peter Martin Helen Tom Mick Phil Chris Micky Pauline Jo Chris N athan Rob Peter and Simon The chaps at Focusrite are a jolly hard working bunch and take a great deal of pride in designing building and delivering products which are considered the best audio units around we hope your new Focusrite unit lives up to that reputation and that you enjoy many years of productive recording If you would like to tell us about your recording experiences then email us at sales focusrite com Mio Mr T Toa Mer f t jl la ja fet The Focusrite Team Contents Important Safety Instructions 1 Ofnectlolis Pedes 1 Staa C 13 1258 po rd GE o Ae Soo 2 Getting to Know thelSA430 3 Meer orando barraca 3 MOUT SUGGS scs assem S dara dg ware ee 3 EO MO GUNS sare eundo e ER WEIN d o erts 4 COMPressor rasteri ite br pire eene Eam ide 5 dle endet abe a 6 DEESSET hae dad Cardi ed ede 6 Bhgr 7 da dit os oda eto eda e o tn 7 DUCT BO AD A don ed ved e 7 SIndie SpIt MOGG a S Axr 7 MOOGS oco dst bote tiu ad t
4. Bypass The EQ and Dynamics processing modules can be globally switched out using the BYPASS switch providing a direct route except for the protection of the multi band limiter which remains in the circuit from Line Input or External Input to the A D inputs This enables the unit to be used as a 24 bit 96k stereo converter for final mastering or for analogue transfer to digital Degas a ABB SH Oe A a A 3 3 Metering VU Select The VU Meter can display input level insert return level or the compressor gain reduction Press VU SELECT to step through the three sources as indicated by the corresponding LEDs For the Input and Insert Return OVU corresponds to 4dBu For the Compressor the meter indicates the amount of gain reduction caused by compression from OVU no compression to 20VU corresponding to 20dB of gain reduction Digital Output Meters Two LED bargraph meters monitor the Internal signal and the External signal whatever is connected to the Ext I P A D Direct XLR input at a point after the Limiter but before the A D input The meters provide a wide range with the L LED lower right side acting as an O verload indicator to warn of excessively high levels at the input of the A D converters ds i 4 P i 1 a m L X a 3 1 LI J m Pr E T 1 i y e F i 1 5 1 d ul fm Listen LED This
5. Filter In Press in to make the Hi and Lo Pass Filters active in the audio path This selection is cancelled if CO MP or GATE is pressed Both filters provide 18dB octave rolloff and since the filter frequencies overlap they may be configured as a very tight bandpass filter for creative compression and gating use when you wish to select a specific instrument or narrow frequency band from complex signal then feed to the sidechain of the compressor or gate High Pass Low Pass Low Pass Filter A variable control sets rolloff frequency from 400Hz to 22kHz High Pass Filter A variable control sets a rolloff frequency from 20Hz to 1k6Hz Comp W hen the CO MP switch is pressed both filters are inserted in the Compressor sidechain for frequency selective compression T his selection is cancelled if FILTER IN or GATE is pressed Gate W hen the GATE switch is pressed both filters are inserted in the Gate sidechain to assist accurate drum gating This selection is cancelled if FILTER IN or COMP is pressed Heg V 1 arcum Y EN a PARAMETRIC EQ Two separate bands of parametric EQ are provided each with continuously variable boost cut with centre detent sweep contro with two ranges and variable Q The first band covers the range 40Hz to 400Hz 120Hz to 1k2Hz when x3 is pressed and the second band covers 600Hz to 6kHz 1 8kHz to 18kHz when x3 is pressed Param EQ In 0 00 t _ 1
6. Phone Fax Phone Fax Venezuela Phone Fax Vietnam Phone Fax Island Acoustics 00 960 32 0032 00 960 31 8624 Vari 00 525 604 6946 00 525 605 9656 Total Audio BV 00 31 20 4476447 00 31 20 4476464 Protel 00 64 4 801 9494 00 64 4 384 2112 Lydrommet 00 47 22 80 94 50 00 47 22 80 94 60 H exagon 00 48 22 44 66 99 00 48 22 44 83 55 Caius T ecnologias 00 351 2 208 6009 00 351 2 208 5969 AT Trade 00 7 095 956 1105 00 7 095 956 6882 T eam 108 T echnical Services Private L td 00 65 748 9333 00 65 747 7273 Powerhouse Electronics 00 27 11 728 3102 00 27 11 728 6789 Media Sys S L 00 34 93 426 6500 00 34 93 424 7337 HiFi Centre Ltd 00 94 1 580442 00 94 1503174 Polysonic ab 00 46 31 7069050 00 46 31 7069110 Bleuel Electronic ag 00 41 1 751 7550 00 41 1 751 7500 DMT Taiwan Ltd 00 886 2 25164318 00 886 2 25159881 KEC 00 66 2 222 8613 4 00 66 2 225 3173 Imaj Music Yapim VE Organizasyon Ticaret A s 00 90 212 216 7180 00 90 212 216 7189 Focusrite Audio Engineering Ltd 44 0 1494 462246 44 0 1494 459920 Group One New York 00 1 516 249 1399 NY 00 1 516 753 1020 NY Group One California 00 1 760 360 8511 00 1 760 360 8031 C amp M Audio 00 58 2 263 8790 264 2050 266 0466 00 58 2 267 4319 Vistar 00 84 4 824 3058 00 84 4 825 0099 FAT i E E Y rU B Copy this template to record your own control settings for future us
7. Press in to switch the o Parametric EQ into the signal path T his selection is cancelled if GATE or COMP is pressed X3 The Sweep controls have two ranges the higher being selected when the x3 switch is pressed frequencies shown in yellow on the panel Comp W hen the CO MP switch is pressed the Parametric EQ is inserted the Compressor sidechain allowing frequency selective compression This selection is cancelled if PARAM EQ IN or GATE Is pressed _ 18 Flat response below selected frequency in Flat above selected frequency High Shelf Gate W hen the GATE switch is pressed the Parametric EQ is inserted in the Gate sidechain for accurate drum gating This selection is cancelled if PARAM EQ IN or COMP is pressed SHELVING EQ High and Low frequency y shelving sections are available each with continuously Fiat variable boost cut with centre detent and a six position rotary switch for selection of TUNI rolloff frequency Shelving EQ In vn Press in to switch all the a Shelving EQ into the signal T path This selection is cancelled if GATE or COMP is pressed attenuation es Comp W hen the CO MP switch is pressed the Shelving EQ is inserted in the Compressor sidechain for frequency selective compression This selection is cancelled if SHELVIN G EQ IN or GATE is pressed Gate W hen the GATE switch is pressed the Parametric EQ is inserted in the Gate sidechain for accurate
8. below Listen Press to allow audio monitoring of the gate sidechain to assist accurate frequency adjustment during setup The LISTEN LED beside the meter illuminates to show that Listen mode is active Range Range determines how much the signal is attenuated when the Gate is closed The Gate can be set up as a cut 80dB attenuation control clockwise or lesser attenuation to 0dB Maximum attenuation may give an unnatural sound so keep Range at a low value unless it is essential to reduce high levels of background noise or unless an obviously gated effect is desired Threshold Threshold determines the level at which the gate opens or at which gain reduction finishes when in Expander mode The higher the threshold the more the low level noise is reduced and the more extreme the effect Hold HOLD controls the variable delay before the gate release starts This allows the Gate to be held open until the signal has decayed away sufficiently that the quite rapid onset of gain reduction isn t noticeable alternatively the signal can be deliberately truncated before its natural end for special effects OUTPUTLEVEL eB 100 80 0 40 20 0 20 INPUT LEVEL Release This control sets the Release time the rate at which the gate attenuation increases fading out the signal this Release period begins immediately the signal has dropped below the Threshold On transient signals a fast release will be approp
9. Signals routed to these inputs are referred to as the internal or Int signal path Insert Return This is used as the insert input point or as the input to the dynamics modules in split mode see Dynamics Split diagram on page 7 Insert Send This is used as the insert output point or as the analogue output from the dynamics module in split mode see D ynamics Split diagram on page 7 Post Mic OP This is used as an output from the point immediately after the mic pre i e before EQ and dynamics modules It is used as a direct to tape ultra short signal path output Taking a signal from this post mic O P does NOT interrupt the signal flow from the mic pre to the EQ dynamics etc so a direct feed to tape can be achieved whilst simultaneously allowing processing of the same source INT A D Direct The Internal A D Direct input is used to route an external signal directly to the A D card via the Limiter It replaces the Internal signal feed to the A D card i e whatever is connected to the mic line or instrument input EXT IP A D Direct The External A D Direct input is used to route an external signal to the optional A D card via the Limiter The signal is normally fed to the spare side of the A D card not being used by the internal signal and so does not replace it However it is possible to also sum the External A D Direct input together with the main internal signal i e whatever i
10. adjusts the gain of the external line input which may be summed into the module output see above Output A variable control adjusts the module output level O P1 between 60dB and 60 Mute Press to mute the output from the unit Stereo D The ISA 430 can be used as a high quality stereo converter channel for final mastering or for analogue transfer to digital by adding the optional ISA 430 digital output board The external input and the line input when BY PASS is pressed are both fed to the A D inputs via the limiter giving a clean protected high quality path to digital Converter settings are as follows Clock Select Selectable between 44 1kHz 48kHz 88 2kHz and 96kH z Bit Rate Select Selectable between 24 20 and 16 bits Ext Sync Press to select the EXT SYNC input on the rear panel This allows thelSA 430 to be slaved to external wordclock Single Split Mode Selection The unit can be run as a single channel Producer Pack or split to act as two independent processors running discrete audio paths Split mode allows the IN SERT SEN D and IN SERT RETURN connections to act as independent inputs and outputs to the dynamics section only creating two devices in one with separate EQ and D ynamics perfect for mix down Dynamics Pre Eq Normally the EQ section is first in the signal path Pressing PRE EQ reverses the position of the EQ and D ynamics sections placing Dynamics first and EQ afte
11. drum gating This selection is cancelled if SHELVING EQ IN or COMP is pressed Compressor Comp In Press COMP IN to switch the compressor into the signal path N ote that the VU meter can be selected to display the compressor gain reduction see Metering section Ratio The RATIO control determines the rate at which compression is applied to the signal with increasing input and is the ratio of change in input level compared to change in output level The control gives a range of 1 5 to 10 Higher Ratio settings will produce more noticeable compression so for the least obtrusive result the Ratio should be set at the minimum necessary for the application For example using low Threshold and low Ratio will produce less subjectively noticeable effect than a high threshold and high ratio even though the total amount of compression may be the same Threshold THRESHOLD determines the level at which compression begins with a range 28dB to 12dB The lower the Threshold the more the signal Is compressed Setting a higher Threshold allows quieter E passages in the music or speech to remain unaffected only passages that exceed the Threshold will be compressed Threshold Range Comp Listen Press to allow audio monitoring of the compressor sidechain to assist accurate frequency adjustment during setup The LISTEN LED beside the VU meter illuminates to show that Listen mode is active Attack ATTACK determ
12. nly one of the Line or Inst inputs can be used simultaneously Mic Mic input sensitivity is switched from 60dB to 6dB in 6dB steps Phantom power is available on the rear panel XLR for condenser mics when 48V front panel switch is pressed Line A Line input is available on XLR with a switched gain control giving a range of 18dB 6dB steps Inst I P An Instrument input is available on 1 4 jacks on either rear panel or front panel This is suitable for high impedance sources such as guitars or bass pickups which may be connected directly without the need for a DI box or synthesisers with low level outputs Trim The TRIM control provides additional variable gain of 0 to 20dB for MIC and LIN E inputs white legend or 0 to 40dB for the Instrument input yellow legend 48V Provides 48V powering for condenser mics when pressed Phase Pressing PHASE reverses the phase of the selected input to correct phase problems with close microphones or incorrect wiring polarity EQ Module All EQ Pressing ALL EQ activates all sections of the EQ module including the Hi and Lo Pass Filters placing the whole module in the audio path Toggling ALL EQ allows A B comparison of EQ settings without having to use BY PASS which switches both EQ and Dynamics modules in or out of the audio path The CO MP and GATE switches on individual EQ sections see below operate independently from the ALL EQ switch
13. HOULD THE MAINS EARTH BE DISCONNECTED FROM THE MAINS LEAD This unit is capable of operating over a range of mains voltages as marked on the rear panel Ensure correct mains voltage setting and correct fuse before connecting mains supply Do not change mains voltage settings while mains supply is connected To avoid the risk of fire replace the mains fuse only with the correct value fuse as marked on the rear panel The internal power supply unit contains no user serviceable parts Refer all servicing to a qualified service engineer through the appropriate Focusrite dealer Power Connections There is an IEC mains lead supplied with the unit which should have the correct moulded plug for your country The wiring colour code used is For units shipped to the USA Canada Taiwan and Japan Live Black Neutral W hite Earth Green For units shipped to any other country Live Brown Neutral Blue Earth Green and Yellow Signal Connections Optional A D Card shown XLR Audio Inputs and Outputs All 3 pin XLR audio connectors O utputs Mic Line Inputs Insert Send amp Return are wired as follows Pin 1 Screen C hassis Pin 2 Audio 0 Pin 3 Audio 180 Instrument Input Key IPS Int A D Direct and Dynamic Link 1 4 Jack wired as follows Tip Audio 0 Ring Audio 180 Sleeve Screen C hassis Mic Line IP Inst Hi Z IP Any one of these inputs may be used as the main input to the 154430
14. al mono signals were being converted simultaneously 9 Split Digital Record Mode This example shows the insert send feeding the External I P A D Direct return and then routed via the dynamics modules to the digital output Requires optional ISA 430 Digital O utput Board Split Mix Down Mode Switch unit to SPLIT Insert 2 channels of console one as EQ the other as Dynamics Mix down to digital using ISA 430 A D and Limiter section for high quality digital master Ao This example shows how to use the ISA 430 in split mode as a mixdown tool The 15 430 is simultaneously allowing EQ processing on audio from the console CH 1 and D ynamics processing on audio fromthe console CH2 and allowing A D digital conversion of the final mix fed from the master L R console outputs Requires optional ISA 430 Digital utput Board EXT IP A D DIRECT E Stereo 1SA430 Units Stereo control of Send audio from second 154430 Dynamics section to A D Card in first ISA 430 This configuration creates a stereo record channel with only one A D Card required DYNAMIC LINK This example shows how to link two 15 4305 together allowing them to be used as a stereo record channel Stereo dynamics processing and dual mono EQ be used as a stereo channel The stereo channel can then be routed to a single optional ISA 430 Digital O utput Board allowi
15. allow monitoring of only the signals which will trigger activation of the D e Esser rather than hearing the overall effect in a complex signal The LISTEN LED beside the meter illuminates to show that Listen mode is active Active LED This LED illuminates when the D e Esser is active at the chosen frequency and shines brighter with increasing level reduction Setting up the De Esser Press D E ESS LISTEN with THRESHOLD at maximum and slowly reduce until the selected frequency begins to trigger the D e Esser Vary the frequency control to find the exact area of the signal which you wish to remove O nce located switch off D E ESS LISTEN and adjust THRESHOLD for the amount of reduction required N o further adjustment of FREQ U EN CY should be required as the hot spot will have been more precisely found using D E ESS LISTEN LIM ITER Limit In Press to activate the multi band limiter Three separate fixed frequency bands with different limiting properties give true distortion free limiting Active LED This LED illuminates when the Limiter is active An upper threshold is fixed at 20dBu to prevent overload of the internal or an external A D converter Output Sum Press to route both the internal signal and external line input signal from the EXT I P A D DIRECT rear panel jack to the module output External signals could be a double track an extra mic from a second ISA 430 or live reverb External This control
16. b a Se CMS dr dd e 8 ADDUCQUONS RCM 9 SDaCITIC GEO DIS tana dared ta Dems dua ofr ame a ei 51 toa delicias Med anys aoa 51 Focusrite Distributors arrasan 52 Important Safety Instructions Read all of these instructions and save them for future reference Follow all warnings and instructions marked on the unit Do not obstruct air vents in the rear panel Do not insert objects through any apertures Do not use a damaged or frayed power cord e Unplug the unit before cleaning Clean with a damp cloth only Do not spill liquid on the unit e Unplug the unit and refer servicing to qualified service personnel under the following conditions If the power cord or plug is damaged if liquid has entered the unit if the unit has been dropped or the case damaged if the unit does not operate normally or exhibits a distinct change in performance Adjust only those controls that are covered by the operating instructions e Do not defeat the safety purpose of the polarised or grounding type plug A polarised plug has two blades with one wider than the other A grounding type plug has two blades and a third grounding prong The wider blade or the third prong are provided for your safety W hen the plug provided does not fit into your outlet consult an electrician for replacement of the obsolete outlet WARNING THIS UNIT MUST BE EARTHED BY THE POWER CORD UNDER NO CIRCUMSTANCES S
17. e 9 PL 3 2j LL 53 Focusrite audio engineering Focusrite Audio Engineering Ltd Lincoln Road High Wycombe Bucks HP12 England Tel 44 0 1494 462246 FAX 44 0 1494 459920 e mail sales focusrite com www focusrite com
18. e material The release rate is probably the most important variable when recording rock music since it controls loudness Loudness is determined by the maintenance of high mean levels compression increases the proportion of high level signal content and as the diagram shows the Fast Release faster the unit releases compressed the more low level signal is brought to a higher level Therefore the faster the release rate the higher the perceived loudness of the recording Ext Key Pressing EXT KEY switches control of the compressor to an external signal on a rear panel jack socket Make Up Compression results in an overall reduction in level The MAKE UP control allows you to restore the signal volume back to the original level Original Signal Compression Threshold This Portion Compressed Over Compressed i lt gt Overall Level Quieter GATE Gate In Press GATE IN to switch the gate into the signal path Ex pand Pressing EXPAN D causes the Gate to function as an Expander which gives a similar effect to gating but instead of cutting off any signal below the threshold it proportionately decreases it see diagram This may give a more natural sound when recording non percussive sources The adjacent LED meter indicates in dB the amount of gain reduction caused by the Expander Gate and provides additional visual indication of the effect of the RAN GE control see
19. echnique I nc 00 1 416 947 9112 00 1 416 947 9369 Clio Musical Productora 00 56 2 274 9621 00 56 2 294 9575 Music Export 00 49 89 746 123 90 00 49 89 746 123 92 N ew Music AG 00 45 86 190899 00 45 86 193199 Alpha Audio 00 202 245 6199 00 202 247 8969 Studiotec Ky 00 358 9 5123 5330 00 358 9 5123 5355 2 Audio Solution 00 33 1 48 63 04 43 00 33148 630201 TC Electronic 00 49 40 531 08 399 00 49 40 531 08 398 Bon Studio S A 00 30 1 3809605 8 00 30 1 3827868 Digital Media T echnology 00 852 2721 0343 00 852 2366 6883 Exton 00 354 55 2555 00 354 562 6490 R amp S Electronics 00 91 22 636 9147 00 91 22 636 9691 Paradi 00 6221 831 8388 00 6221 8370 3473 CTI Control Techniques Ireland 00 353 1 454 5400 00 353 1 454 5400 Sontronics 00 972 3 570 5223 00 972 3 619 9297 Grisby Music Professional 00 39 0 71 7108471 00 39 0 71 7108477 All Access I nc 00 81 52 443 5537 00 81 52 443 7738 Best Logic Sound Co 00 82 2 515 7385 00 82 2 516 7385 R O Maldives Phone Fax Mexico Phone Fax Netherlands Phone Fax N ew Zealand Phone Fax Norway Phone Fax Poland Phone Fax Portugal Phone Fax Russia Phone Fax Singapore Phone Fax South Africa Phone Fax Spain Phone Fax Sri Lanka Phone Fax Sweden Phone Fax Switzerland Phone Fax T aiwan Phone Fax T hailand Phone Fax Turkey Phone Fax U nited Kingdom Phone Fax USA
20. illuminates when LISTEN is selected on the Compressor Expander G ate or D e Esser and indicates that the unit is monitoring the selected side chain frequencies N ote that the VU meter continues to show the signal chosen by VU SELECT and not the LISTEN signal W hat you are watching and what you are hearing can be two different things 0 L LED This LED illuminates when the peak signal level reaches or exceeds 20dB or when the peak signal level reaches 6dB below clipping T he signal is monitored at four points after the input gain TRIM after the EQ module after the Dynamics module and after the Insert Return since each module could cause clipping if incorrectly set up O ccasional short duration peaks which may cause the LED to blink will not normally cause audible distortion but if the LED is lit constantly the level in the appropriate module should be reduced to prevent overloading Inst 1 P Instrument sources may either be connected via the rear panel or via this front panel jack Input Stage Three input options are provided to give compatibility with Mic Line or Instrument sources An immediately post mic pre balanced output Post Mic O P Jis provided on the rear panel giving an ultra short signal path to allow for the cleanest possible recordings Select Pressing SELECT steps through each of the three inputs as indicated by the corresponding LED s W hen the Mic LED is lit the Mic input is active etc O
21. ines how quickly compression is applied once the level of the source signal has risen above the Threshold W hen turned anticlockwise the response is very fast which tends to make the compressor react to the peak levels of the signal This is sometimes desirable but can cause unwanted pumping of steadier low level components of the signal by short transients A slower attack will cause the compressor to ignore short transients and respond more to the average loudness of the signal however this may seem to increase relative volume of the transients Before Attack During During Visi After Compression at Compression Compressi i mum Compression RELEASE determines how quickly compression is removed once the level of the source signal has fallen below the Threshold W hen in the anticlockwise position the compression releases very quickly which may be appropriate on rapidly varying signals to avoid compressing the beats that follow but can result in excessive distortion on more sustained material Clockwise rotation increases the release time giving a smoother effect but which at the same time may result in transients causing audible pumping Rotation fully clockwise switches release to AUTO substituting an adaptive attack release circuit which essentially varies the release rate to suit the dynamics of the signal This enables the use of fast attack times without any pumping type artefacts especially effective on complex programm
22. ion to your statutory rights This warranty does not cover any of the following Carriage to and from the dealer or factory for inspection or repair labour charge if repaired other than by the distributor in the country of purchase or Focusrite in the U K 51 product is to be shipped back please ensure that it is packed correctly preferably in the original packing materials W e will do our best to remedy the fault as quickly as possible Please help us to serve you better by completing and returning the W arranty Registration C ard at the back of this manual Thank you Focusrite Distributors Argentina Phone Fax Australia Phone Fax Austria Phone Fax Belgium Phone Fax Brazil Phone Fax Canada Phone Fax Chile Phone Fax Croatia Slovenia Bosnia Macedonia and Serbia Phone Fax Denmark Phone Fax Egypt Phone Fax Finland Phone Fax France Phone Fax Germany Phone Fax Greece Phone Fax H ong Kong China Phone Fax Iceland Phone F ax India Phone F ax Indonesia Phone F ax Ireland Phone Fax Israel Phone F ax Italy Phone F ax Japan Phone F ax Korea Phone F ax DBA Systems SRL 00 54 1 545 6800 00 54 1 545 3668 Electric Factory Pty Ltd 00 61 3 9480 5988 00 61 3 9484 6708 TC Electronic Austria 0800 201 652 0800 201 653 EML 00 32 11232355 00 32 11232172 00 55 11 5585 2866 00 55 11 5584 6586 Sonot
23. ng A D conversion of the stereo signal 10 Specifications Rear Panel Connectors Insert Send Connector XLR Signal Balanced O perating Level 4dBu Maximum Level 26dBu This output has two modes of operation INSERT IN the connector is an output from the point in the signal path determined by the Pre Mid and Post selector and the Dyn Pre EQ button SPLIT the connector is the output of the dynamics section of the module Insert Return Connector XLR Signal Balanced O perating Level 4dBu Maximum l P Level 26dBu This input has two modes of operation IN SERT the connector is the return or input to the signal path determined by the Pre Mid and Post selector and the D yn Pre EQ button SPLIT the connector is the input nto the dynamics section of the module Inst Hi Z I P Connector Mono Jack Signal U nbalanced from any high impedance source such as guitar or bass pickups O perating Level 10dBu Maximum l P Level 100 Gain Range 10 to 40dB Input Impedance gt 1 0 Line Connector XLR Signal Balanced O perating Level 4dBu Maximum I P Level 26 Gain Range 18dB in 6dB steps Accuracy W hilst every effort has been made to ensure the accuracy and content of this manual Focusrite Audio Engineering Ltd makes no representations or warranties regarding the contents Copyright Copyright January 1999 Focusrite Audio Input Impedance N oise THD
24. riate control anticlockwise but with other material a slower release control clockwise may give a more natural sound Ideally the Release needs to be slightly slower than the natural decay rate of the signal to avoid audibly cutting it short Fast Attack FAST ATTACK determines how quickly the gate opens once the level of the source signal has risen above the threshold W hen the switch is pressed the response is fast which may be necessary on some signals to avoid missing an initial transient but could also introduce an undesirable click on smooth sustained sounds when using a high threshold setting O n such signals a slower attack switch released may give a more natural sound Hyst Press to introduce hysteresis this will prevent the gate oscillating with particular combinations of input signal and threshold settings Ext Key Pressing EXT KEY switches control of the gate to an external signal on arear panel jack socket De Esser The D E ESSER is based on an optical technology design letting you remove excessive sibilance from a vocal performance if ess sounds are over emphasised De Ess Press in to activate the D e Esser Threshold THRESHOLD determines how much de essing is being applied to the selected frequency The lower the threshold control anticlockwise the more de essing is applied Freq This control selects a frequency to remove between 2k2Hz and Ok2Hz De Ess Listen Press to
25. rwards Split Dynamics Press SPLIT DYNAMICS to separate the EQ and D ynamics sections creating two independent modules as shown below INPUT Y 4 SELECTION TRANSFORMER Insert Connectors INS INS SEND Feed Dynamics INST LEVEL COMP TRIM GATE 0 amp EQ amp LEVEL gt LIMIT gt METER PHASE DE ESS Insert In Normally the insert is bypassed Pressing IN S IN places the insert in the audio path in the selected position Insert Position The Insert Send and Return may be positioned in three places within the unit for maximum versatility as shown in the diagram Pressing the IN SERT PO SITIO N switch steps through the three options as indicated on the corresponding LED s The options are PRE Insert is after the input Trim but before EQ or Dynamics depending on the setting of the DYNAMICS PRE EQ switch MID between EQ and Dynamics or PO ST after EQ and D ynamics and before the main output SWAP Using DYNAMICS PRE EQ PRE MID POST INPUT EQ e DYN OUTPUT fr TL d SELECTABLE INSERT POSITIONS Output Modes SEND RETURN POST MC INSERT SWITCHING POST INPUT MID SELECTION EQ DYNAMICS MIC mall FILTERS LINE amp SHELF n INST PHASE DE ESS tf 4 SWAP WITH DYNAMICS PRE EQ Transformer M i Tun LIMITER gt METER gt Analogue Out Int EXT A D Digital P LIMITER p METER gt CARD
26. s connected to the mic line or instrument input using the sum button on the front panel This will result in whatever is connected to the External A D Direct input being routed to both sides of the A D converter For example a reverb signal could be processed externally and then be summed with a dry snare drum signal in this way This output is used as the main analogue internal signal output and is fed by whatever is connected to the mic IP Line IP or Inst Hi Z IP aftyer this signal has been routed through the EQ and dynamics modules in single mode or through EQ only in split mode Dynamic Link You can connect two 154430 units using a standard stereo jack to jack lead between the DYN AMIC LIN K sockets to allow the dynamics sections to behave as a stereo pair of processors W hen connected in this way the dynamics processors behave as if both units were receiving the same level of signal with both units responding to the higher level of the two signal paths The EQ channels can be matched visually or aurally to be used as a stereo pair if required Retrofitting the Optional A D Card The optional A D card can be retrofitted to a standard ISA 430 at any time Full fitting instructions for this option are included with the Card Focusrite Poacher Getting to Know the 154430 Power Applies power to the unit Turn on the 154430 before powering up devices to which the outputs are connected
27. tly to the A D Via the meter and limiter Gate Key 1 Comp Key 1 P Connector TRS Stereo Jack Signal Balanced O perating Level 4dBu Maximum I P Level 26 D rives the sidechain of the gate or Compressor Dynamic Link Links two 15 430 units and control the dynamics section of both from one unit giving accurate stereo dynamics control Compressor Threshold Range 28dB to 12dB Ratio 1 5 1 to 10 1 Slope Soft knee Attack 100uS to 100mS Release 100mS to 45 program dependent variable or auto Limiter Threshold Range 22dBu Ratio oo infinity Attack Fast Gate Threshold Range 40dB to 10dB Gate Range 0 to 80dB Attack switched fast or slow Release 100mS to 55 Hold 20mS to 45 Expander Ratio 0 to 5 1 De Esser Threshold Range 22dBu Frequency Range 2K2 to 9K2 Ratio at Centre Frequency 24 Consequential loss or damage direct or indirect of any kind however caused Any damage or faults caused by abuse negligence improper operation storage or maintenance If a product is faulty please first contact your dealer in the country of purchase alternatively contact the factory If the Engineering Ltd All rights reserved No part of this manual may be reproduced photocopied stored on a retrieval system transmitted or passed to a third party by any means or in any form without the express prior consent of Focusrite Audio Engineering Ltd warranty is in addit
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