BCS25 manual
Contents
1. El b m Del Mel Del is is oo e oe oe ig Ye e Je ee ee og oe ie JB JB JB Fig 6 Fig 7 Fig 8 Jumpers J8 and J9 select the type of operation It is possible to choose between faderstart figure 6 buttonstart figure 7 or the fader switch combinaton figure 8 On air channels The BCS25 has two on air groups This makes it possible to drive an indicator when the microphones are opened The output will be activated when one or more channels that belong to the on air group are opened With jumper J12 a channel is configured as on air 1 or on air 2 channel When a channel is configured as on air 1 the studio output will be muted when the channel is active The on air 1 output on the master also will be activated A channel configured as on air 2 will not mute the studio but only activate the on air 2 output on the master 9 JO ziall J12 T J12 O a ago H J12 a fi o a a U silo 14 Dateg BCS25 manual BCS26 E telephone input module EN Master cue Each channel can activate the master cue function When the cue button is pressed the master module automatically selects the CUE bus as input This function can be activated with J10 J10 J10 om CLE OFF _ e CUE OFF2. DJ Mode When jumper J11 is set to DJ the control room will be muted when the channel is activated all CUE functions will be turned off and the master module will select program or audition depending on the routing switches J1 Ql J11 Od om ON OFF H o ON OFF Cleanfeeds en Auxiliary bus The BCS26 E module contains 2 mono bus outputs which can be used to create a return signal to for example an ISDN codec The signal at these busses is post fader At each individual channel of the console can be selected if they belong to one or both of the cleanfeeds by setting jumpers J4 and J5 in the right position The first example shows a channel that doesn t belong to a cleanfeed The second example belongs to cleanfeed one and not to cleanfeed two CF CF 2 2 31 2 29 31 OFF OFF BN XX oe o oN ON The BCS25 had two auxiliary busses The first bus is always pre fader the second bus can be configured to be pre or post fader This is done with J2 ad J3 AR AQ s 9 3 o Pm oi om Pomi EN Dateg BCS25 manual BCS26 E telephone input module 15 Internal or external hybrid The BCS26 E module handles incoming telephone calls over the built in hybrid but is also able to remote control an external digital hybrid or talk show system With jumper J6 J7
3. r 0 Jj CONNES j EEES USER MANUAL EE NT Th d aad DIAITIEIQ aude UA AFON ES Dateg BCS25 Manual Safety instructions 3 Safety instructions 1 2 3 10 11 12 13 14 15 16 All safety instructions warnings and operating instructions must be read first All warnings on the equipment must be heeded The operating instructions must be followed Keep the operating instructions for future reference The equipment may never be used in the immediate vicinity of water make sure that water and damp cannot get into the equipment The equipment may only be installed or fitted in accordance with the manufacturers recommendations The equipment must be installed or fitted such that good ventilation is not obstructed in any way The equipment may never be installed in the immediate vicinity of sources of heat such as parts of heating units boilers and other equipment which generates heat including amplifiers Connect the equipment to a power supply of the correct voltage using only the cables recommended by the manufacturer as specified in the operating instructions and or shown on the connection side of the equipment The equipment may only be connected to a legally approved earthed mains power supply The power cable or power cord must be positioned such that it cannot be walked on in normal use and objects which might damage the cable or cord cannot be placed on it or again
4. MIC LINE aC Pniaaaa 12dB 12 kHz shelving MIDs Sex 12dB O 1 3 kHz bell LOW PE HA 12dB 60 Hz shelving TEL HIGH iiaiai 12dB 3 5 kHz shelving LOWYR 12dB 600 Hz shelving GENERAL Freguency response Mic to master 80 Hz 30 kHz 0 0 5dB rest to master 20 Hz 30 kHz 0 0 5dB THD IM 9 99 0 05 nominal Crosstalk L lt gt R lt 73dB 1 kHz Crosstalk 1 lt gt 2 lt 80dB 1 kHz NOISB uu GU dideio lt 100dB inputs OFF lt 80dB inputs ON Overload indication 6dB below clip level Clip l amp Vel 20dB METER type range Peak Hold 40 6dB barlength 40 LEDs INPUT CONTROL I O ON Lamp output 15Vdc 100mA line 1 only CUE button input 50 kOhm normally open line 1 only Remote outputs solid state driver 15Vdc 10 mA ON AIR lamp output solid state driver 15Vdc 10 mA SUPPLY Supply voltage 90 to 260 Vac 50 60 Hz 30 Watt GENERAL Dimensions 445 x 395 x 110 mm W x H x D Weight 7 9 kg nett
5. io z qe 8 iz 8 Dateq BCS25 manual Technical specifications INPUTS AUX1 AUX2 HYBRID TELOS HYBRID GM Y Y electronically balanced 300 Ohm nominal 54 16dBm lt 127dB 46 12dB electronically balanced 20 KOhm nominal 12 20dBm 0dBm nominal lt 80dB 46 412dB unbalanced 24 kOhm nominal 18 20dBm 6dBm nominal lt 80dB 46 12dB pre fader variable pre or post fader fixed externally adjustable internally adjustable Triple Dynamical Mix Minus lt 30dB O 300 3kHz electronically balanced gt 20 kOhm balanced 0OdBm 600 Ohm lt 80dB unbalanced 12 kOhm nominal 14 6dB pre trimmer unbalanced 22 kOhm nominal electronically balanced and unbalanced 6dBm 600 Ohm 0dBm 600 Ohm unbalanced variable 0dBm 600 Ohm unbalanced variable 0dBm 600 Ohm electronically balanced variable 0dBm 600 Ohm Technical specifications E N Dateg BCS25 manual Technical specifications ANN GUEST1 GUEST2 stereo headphone variable e AE nuu guy GY usc 2x 0 5 W 4 Ohm STUDIO cece eens unbalanced variable Ued i ase anan ma near OdBm 600 Ohm CLEANFEEDI 2 unbalanced NR 0dBm 600 Ohm LOW CUT FILTERS MIG Gn Id O a or MC 6dB octave cis poll O 80 Hz fixed LINE GY GG dod 6dB octave 3dB point 10 Hz fixed EGUALIZER E version only
6. 9 pins female sub D connector On this connector the outputs for the audition auxiliary 1 and auxiliary 2 can be found AIR SP1 SP2 9 pins female sub D connector to which the air spare 1 and spare 2 signals can be connected The level of the air input can be adjusted with two trimmers one for the left signal level and one for the right signal level MCA 100 Connector for Dateq s MCA 100 headphone amplifiers so that more headphones for announcers and guests can be connected each with their own volume control and cough speak button CR R amp CR L Balanced control room outputs OA On air outputs On air indicators such as Dateg s OA1 can be connected PGM XLR 3 male Balanced program outputs Jack Two unbalanced stereo program outputs 20 Dateq BCS25 manual BCS27 Master module EN BCS25 GST ANN STD CF1 CF2 DB15 F connector Function Announcer headphone right out Audio GND Announcer headphone left out Audio GND Guest headphone right out Audio GND Guest headphone left out Audio GND Studio right Audio GND Studio left Audio GND Cleanfeed 2 Audio GND Cleanfeed 1 BCS25 AUD AUX1 AUX2 DB9 F connector Audition right Audio GND Audition left Aux 1 right Audio GND Aux 1 left Aux 2 right Audio GND Aux 2 left 01 0 B 00 G N P BCS25 AIR SP1 SP2 DB9 F connector Air right Audio GND Air
7. PRI o Dateg BCS25 manual BCS26 E telephone input module EIN BCS26 E telephone input module The BCS26 E telephone input module is available with or without 2 band egualiser The module is eguipped with a built in analogue telephone hybrid Telephone lines can be directly connected to this channel Besides the built in hybrid an external hybrid or talk show system can be connected In that case the BCS26 E channel operates as remote control only ringer EU e On Off Overload Gain R bal High Low AUD PGM AUX BAL CUE ON Fader Switches the external hybrid on or off The green LED will light up at an incoming ringer signal The LED in the off switch lights up red when the signal level anywhere in the module is too high and distortion can occur the limit is 6dB under cliplevel Volume pre setting Range 15dB to 6dB Compensation for the resistive part of the line impedance High tone control BCS26E only Shelving 12dB 3 5kHz Low tone control BCS26E only Shelving 12dB 600Hz Bus routing switches When a switch is pushed yellow LED is lighted the signal will be routed to the selected output Volume control for AUX1 level The AUX1 bus is pre fader Balance control The signal is placed at the desired position in the stereo image Pre fader listening The LED lights up green when the CUE function is activated With a
8. When the cue button is pressed the master module automatically selects the CUE bus as input This function can be activated with J10 J10 J10 om CLE OFF _ e CLE OFF DJ Mode In a self support configuration the control room has to be muted when the microphone is opened The announcer has to use a headphone so that acoustical feedback is impossible When jumper J11 is set to DJ the control room will be muted when the channel is activated all CUE functions will be turned off and the master module will select program or audition depending on the routing switches Qie o m ON OFF o Cleanfeeds en Auxiliary bus The BCS25 E module contains 2 mono bus outputs which can be used to create a return signal to for example an ISDN codec The signal at these busses is post fader At each individual channel of the console can be selected if they belong to one or both of the cleanfeeds by setting jumpers J4 J7 in the right position In the example below the signal of this channel is send to cleanfeed bus 1 only g o7 em O ET EE O dl ofis 8 Beside the cleanfeeds the BCS25 E module has 2 auxiliary busses The first auxiliary is always pre fader Auxiliary 2 can be switched between pre and postfader by jumper J2 and J3 ADO ALD S y POST POST a PRE
9. a combination of these two options By changing jumpers you easily select one of these settings The jumpers for remote start settings can be found at the main PCB above the bussconnector jumper J8 and J9 see drawing i Wel Gel Gel ms W es g o olf iz e 3 rs Ie pe fe z e oB ie cs ET of S8 ie uy J8 J8 J amp 38 Fig 1 Fig 2 Fig 3 Jumpers J8 and J9 select the type of operation It is possible to choose between faderstart figure 1 buttonstart figure 2 or the fader switch combinaton figure 3 EN Dateg BCS25 manual BCS25 E dual line microphone input module JER FADER SWITCH COMBINATION When the fader switch combination is selected the connected equipment can be started in two different ways 1 Pushing the startbutton when the fader is closed The connected equipment will start as soon as the fader is opened 2 Opening the fader The connected equipment will start as soon as the button is pressed To start the connected equipment 2 conditions have to be fulfilled When just one of the conditions is fulfilled the LED in the button will light up dimmed to indicate that the equipment will be started as soon as the fader is opened the ON is pressed The equipment will stop as soon as the button is pressed or the fader is closed Remote control output The BCS25 E module can generat
10. left Spare 2 right Audio GND Spare 2 left Spare 1 right Audio GND Spare 1 left BCS25 MCA 100 DIN 6p 270 female Function Stereo 1 Left default Announcer Left Stereo 1 Right default Announcer Right 01 0 amp 00 G N P OD GND combined for audio and power supply Stereo 1 Left default Guest 1 Left Stereo 1 Right default Guest 1 Right 12V DC do not connect when an external supply is being used EN Dateq BCS25 manual BCS27 Master module 21 BCS25 control room 2x TRS Jack 3p BCS25 On air 2x TRS Jack 3p Pin Function Type Pin Function Type Tip Audio Out Tip On air 2 15V 10mA Out Ring Audio Out Ring On air 1 15V 10mA Out Sleeve Audio GND A GND Sleeve GND GND BCS25 Program 2x XLR 3p male BCS25 Program 2x TRS Jack 3p Pin Function Type Pin Function Type 1 Audio GND A GND Tip Program left Out 2 Audio Out Ring Program right Out 3 Audio Out Sleeve Audio GND A GND 22 Dateg BCS25 manual BCS27 Master module EN Talkback functions AUTOGAIN The talkback input has an autogain function The amplification can be adjusted with JP2 When low is selected the autogain range is 10dB When high is selected the range is 30dB When jumper JP2 isn t placed an external microphone source can be connected to the EXT MIC connector C a
11. orr E O can orr EE J13 J13 J13 16 Dateg BCS25 manual BCS26 E telephone input module EN TDM The hybrid automatically gets the correct N 1 return from the CUE PGM or AUD bus This is the so called Triple Dynamic Mix Minus system shortened to TDM Since the BCS26 generates the N 1 signal itself separate cleanfeeds are not necessary The number of BCS26 modules which can be used at the same time is therefore theoretically unlimited In practice the number of telephone lines which can be used at the same time is limited by the quality of the telephone hybrids being used If AUD is selected as well as PGM the return from the PGM bus has priority over the return from the AUD bus CUE has the highest priority when the channel is off As soon as CUE is selected on a BCS26 module the hybrid gets the return from the CUE bus Dateq BCS25 manual BCS27 Master module BCS27 Master module The BCS27 master module has a microprocessor that handles the audio matrix This matrix routes the audio outputs The second function of the microprocessor is controlling the VU meter TEMIC 20649 lt 20 j ET 3 a AUX1 WA Ne 15 i amp a lt 3n z an el Ne 15 a i f a i SA 3 ma AUX2 TB MIC Meter AUX1 AUX2 AUD Air Cue Mute CR VU meter Fader Connector for the Talk Back microphone Source selector for the VU m
12. without a cabinet or connector cables It is possible to make cables for connecting to the Sub D connectors of the various input and output modules in house Only use connectors with metal cans and shielded cables for optimal HF rejection Installing into a cabinet The BCS25 frame fits into an opening of 445 x 395 x 110 mm W x Hx D 395 445 El ai El AUX2 110 CO Bo lt Oe Dateg BCS25 manual BCS25 E dual line microphone input module EX BCS25 E dual line microphone input module The BCS25 E input module is available with or without 3 band equaliser The module can handle up to 3 different signals 2 stereo line and a mono microphone Line input 1 and the microphone input of this module are electronically balanced Line input 2 is unbalanced but can be turned into a balanced input by use of an extra pushon balanced line input module The microphone input is equipped with phantom power which can be switched off BCS25E iinei lihe e mic a5 overload PAT Again Ss ae 20 Ed La Line 1 Line 2 Mic Overload Gain High Mid Low AUD PGM AUX BAL CUE ON Fader Input selector When the switch is pushed green LED is lighted line 2 is selected Input selector When the switch is pushed green LED is lighted the microphone input is selected regardless of the inputselector for line 1 or line 2 The LED in the mic switch lights up red when the signal level anywh
13. 15V 10 mA Line 1 6 Line2Audioright i _ 7 _ Audio GND a Microphone Audio PBE YSU Y idles S ECH 21 AudoGND SCE AND 9 AudoGND _ 3 O AND These inputs are available when the optional balanced input module or the RIAA correction amplifier are inserted The line 2 unbalanced inputs are to be discarded When a RIAA correction amplifier is mounted use pins 6 and 18 for the signal Pins 5 and 17 are internally connected to the ground 8 Dateg BCS25 manual BCS25 E dual line microphone input module GEN Phantom power Non dynamically microphones usually need an external power supply for its built in pre amplifier If this power has to be supplied by the BCS25 place jumper J1 in the ON position 48Vdc will be supplied to both signal wires related to the cables shielding Jumper J1 is situated on the left side of the bussconnector The factory default setting for this jumper is OFF See picture below ON OFF ON OFF 48V EE J1 48V O EE v1 5 8 Dynamically microphones don t need a phantom power supply When the correct cables are used it will not damage the microphone when the phantom power supply is turned on So it is not really dangerous to turn the phantom power on for all types of microphones Faderstart buttonstart The BCS25 E module is able to remote start connected equipment by faderstart buttonstart or
14. AIR and the CR button simultaneously By default the studio output will follow the program signal It is possible to enable or disable the talk to program function This is done by simultaneously pressing the AIR and talk to program buttons When the talk to program function is activated the control room will be muted By default this function is disabled The guest output can be used as an external communication channel for example to a second studio This function can be enabled by simultaneously pressing the AIR and talk to guest buttons The guest output will be muted The only signal on the guest output is the talk signal By default this function is disabled It is possible to enable or disable the talk to cleanfeed function This is done by simultaneously pressing the AIR and talk to cue buttons When the talk to cue button is pressed the talkback signal will be routed to the cue and the cleanfeed buss By default this function is disabled EN Dateq BCS25 manual BCS27 Master module 19 BCS27 connector board The BCS27 connector board has the connectors for the in and outputs There are three spares for extra jack connectors AIR R trim AIR L trim OJO GST ANN STD CF1 CF2 15 pins female sub D connector with the signals for the guest announcer studio and two cleanfeeds The guest and announcer outputs have headphones drivers The studio and cleanfeed outputs are at line level AUD AUX1 AUX2
15. It has a 40 segment LED VU meter with peak hold function that can be linked to PGM out or each of the other sources In addition the BCS27 has a master fader for PGM out an adjustable headphone output for monitoring any signal level controls for other outputs such as aux audition etc Any signal can be selected to the monitor outputs control room or headphone by means of the switching matrix The dedicated guest and the presenter outputs have a very practical feature The engineer is able to send a different signal mix than the actual PGM to each of those two outputs This enables him her to perform simple timesaving post production during transmission type of operations Communication between engineer guest and presenter is completely handled by the console offering numerous possibilities The most interesting one is the ability to rout the communication signal to the PGM output This option has been specifically implemented for live on location OB transmissions it presents a direct and easy communication channel with the studio engineer while news and commercials are broadcast from the home base studio Product support If you have any questions concerning the BCS25 its accessories or other products please contact Dateg Audio Technologies B V De Paal 37 Telephone 31 36 54 72 222 NL 1351 JG Almere Fax 31 36 53 17 776 The Netherlands E mail info dateq nl Installing the mixer unit The BCS25 is supplied as standard
16. and J1 it s possible to select the type of operation Jumper J6 and J7 are used to switch between the internal or external hybrid J1 switches the bandpass filter on or off When a hybrid with built in band pass filter is connected J1 should be placed in the OFF position The drawing below only shows J1 and J7 J6 can be found above the transformer see the autogain drawing at the bottom of this page J Hep 1s EE O S us mo O EE Fig 9 Internal hybrid bandpass filter on J o ns O UE g Ji mr OFF ON qs mo EE O 37 Fig 10 External hybrid bandpass filter off Autogain The BCS26 E is equipped with a special feature that reduces the signal from the hybrid by 6dB when audio is sent from the mixer to the hybrid This means that the caller is dimmed by 6dB when the announcer in the studio speaks This feature improves the side tone reduction with 6dB so creating the best possible speech intelligibility The consequence of this auto gain feature is that when the caller and announcer are talking at the same time double talk the announcer in the studio will slightly drown the voice of the caller This function can be disabled with jumper J13 In the first example the autogain function is enabled GAN
17. e a continues or pulsed start stop signal Jumper J13 at the main PCB above the bussconnector in the middle selects between a continue or pulse signal at the remote output o i ie fal A 4 a 5 J11 DJ In the pulse position the remote outputs will generate a pulse of 100msec When the continues mode is selected the on output will provide a high level signal when the channel is switched on and a low level signal as soon as the channel is switched off The remote outputs only work when line input 1 is selected On air channels The BCS25 has two on air groups This makes it possible to drive an indicator to indicate that the microphones are opened The output will be activated when one or more channels that belong to the on air group are opened With jumper J12 a channel is configured as on air 1 or on air 2 channel When a channel is configured as on air 1 the studio output will be muted when the channel is active The on air 1 output on the master also will be activated A channel configured as on air 2 will not mute the studio but only activate the on air 2 output on the master J12 J12 J12 0 0 m o EE o ECO 2 F 2 1 LOFF 2 F CN AR CON AR CN AR 10 Dateg BCS25 manual BCS25 E dual line microphone input module GEN Master cue Each channel can activate the master cue function
18. ere in the module is too high and distortion can occur the limit is 6dB under cliplevel Volume pre setting Range 46dB to 12dB High tone control BCS25E only Shelving 12dB 12kHz Mid tone control BCS25E only Bell curve 12dB 2 1 3kHz Low tone control BCS25E only Shelving 12dB 60Hz Bus routing switches When a switch is pushed yellow LED is lighted the signal will be routed to the selected output Volume control for AUX1 level The AUX1 bus is pre fader Balance control The signal is placed at the desired position in the stereo image Pre fader listening The LED lights up green when the CUE function is activated With an internal jumper the master cue function can be dis activated On off switch It is possible to select faderstart buttonstart or a combination of both with an internal jumper The yellow LED is lighted when the channel is on 100mm long volume control Depending on a jumper setting the signal on the AUX2 bus is pre or post fader EN Dateq BCS25 manual BCS25 E dual line microphone input module BCS25 E connector board DB25 F connector All connections are made on this connector The function of the various pins can be found in the table Universal input BCS 25 BCS25 E Audio and Control Input Output Sub D 25 pins female Pin Funtion_ Type _ 3 Remote Start 15V 10mA Line 1 f Ot GND Common external mute a Remote Stop
19. eter The meter switches between PGM of control room Volume control for the auxiliary 1 output Volume control for the auxiliary 2 output Volume control for the audition output Selection of the signal on the control room and the CUE output The active selection is indicated with a yellow LED under the button The LED lights up RED if the control room output is automatically switched off Volume control for the control room output The VU meter indicates the level of the selected source The upper LED s will blink when the level in the master module is too high the limit is 6dB under clip level 100mm long volume control for the program signal Dateg BCS25 manual BCS27 Master module EN PGM TBK Source selector for the guest output Switches between program and talkback GST Volume control for the guest headphone output ANN Volume control for the announcer headphone output STUD Volume control for the studio output AIR CR Source selector for the studio announcer and guest outputs CUE Volume control for the CUE headphone output PGM ALL Talk buttons These buttons enable the talkback function to the selected source The ALL button talks to Guest announcer CUE and CF when this function is enabled CUE Headphones output Special functions The studio output can be toggled to follow the program signal or the selection indicated on the source selector Toggle between these functions by pressing the
20. he build in power supply and an extensive mastersection with LED PPM s Input modules The universal BCS25 E input channel features 3 inputs line 1 line 2 and mic a gaincontrol a 3 band equaliser option without and a balance control The input signal can be routed to two stereo mix busses with the audition and program select buttons This enables the engineer to set up two different output mixes or to use the console for two different jobs running simultaneously The auxiliary 1 is pre fader and has a volumecontrol on the module The auxiliary 2 bus sends the signal directly to the master section the signal may be selected pre or post fader The cue button enables pre fade listening of the input source A fader button start feature is standard fader or button function is set by an internal jumper The 100 mm fader is not in the audio signal path but only controls the VCA this prevents any signal distortion and increases reliability Telephone hybrid There is also a special telephone channel available with integrated analogue telephone hybrid This channel can also be used as a remote for an external hybrid The ON OFF buttons can be used for the remote control for the external hybrid The BCS26 E is equipped with an intelligent electronic circuit to generate a mix minus signal Dateg s unique TDM This makes it possible to have more than one hybrid in the mixer BCS27 Master module The master section is extremely well equipped
21. n internal jumper the master cue function can be dis activated On off switch It is possible to select faderstart buttonstart or a combination of both with an internal jumper The yellow LED is lighted when the channel is on 100mm long volume control Depending on a jumper setting the signal on the AUX2 bus is pre or post fader Dateq BCS25 manual BCS26 E connector board BCS26 E telephone input module DB25 F connector Telephone Input All connections are made on this connector The function of the various pins can be found in the table Function Phone A telephone line Phone B telephone line Line A telephone line Line B telephone line Off hook On 15V 10 mA GND Ring 15V 10 mA Remote hybrid out Optocoupler output Common Remote hybrid on Optocoupler output Receive audio Receive audio Audio GND Audio GND Send audio Send audio Audio GND Frame GND EN Dateg BCS25 manual BCS26 E telephone input module 13 Faderstart buttonstart The BCS26 E module is able to remote start connected equipment by faderstart buttonstart or a combination of these two options By changing jumpers you easily select one of these settings The jumpers for remote start settings can be found at the main PCB above the bussconnector jumper J8 and J9 see drawing
22. st it Special attention must be paid to the point at which the cable is attached to the equipment and where the cable is connected to the power supply Ensure that foreign objects and liquids cannot get into the equipment The equipment must be cleaned using the method recommended by the manufacturer If the equipment is not being used for a prolonged period the power cable or power cord should be disconnected from the power supply In all cases where there is a risk following an incident that the equipment could be unsafe such as if the power cable or power cord has been damaged if foreign objects or liguids including water have entered the eguipment if the equipment has suffered a fall or the casing has been damaged if a change in the performance of the eguipment is noticed it must be checked by appropriately gualified technical staff The user may not carry out any work on the eguipment other than that specified in the operating instructions DJA T EJG aude UECFAOFOUN OS EW Dateg BCS25 manual Introduction EN Introduction The BCS 25 is specifically designed for applications requiring a full featured mixing console while being restricted by dimensional and or financial limits Post production rooms OB vans on location transmission studios and secondary studios are only a few of the possible uses for the BCS 25 The BCS 25 frame is supplied with 8 input channels optional with or without equalizer t
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