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Focusrite

a u d i o e n g i n e e r i n g

I S A 4 3 0

user’s manual

ISA 430 Manual (multilanguage) 20/1/2000 9:08 am Page 55

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Summary of Contents for ff ISA430

Page 1: ...Focusrite a u d i o e n g i n e e r i n g ISA430 user s manual ...

Page 2: ...n for replacement of the obsolete outlet WARNING THIS UNIT MUST BE EARTHED BY THE POWER CORD UNDER NO CIRCUMSTANCES SHOULD 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 main...

Page 3: ...ocessors When 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 ISA430 at any time Full ...

Page 4: ...strument sources may either be connected via the rear panel or via this front panel jack 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 0VU corresponds to 4dBu For the Compressor the meter indicates the amount of gain...

Page 5: ...t bandpass filter for creative compression and gating use when you wish to select a specific instrument or narrow frequency band from a complex signal then feed to the sidechain of the compressor or gate Low Pass Filter A variable control sets a rolloff frequency from 400Hz to 22kHz High Pass Filter A variable control sets a rolloff frequency from 20Hz to 1k6Hz Comp When the COMP switch is pressed...

Page 6: ...or 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 determines how quickly compression is applied once the level of the source signal has risen above the Threshold When turned anticlockwise the response is very fast which tends to make the compressor react to the peak levels of the signal ...

Page 7: ...t noticeable alternatively the signal can be deliberately truncated before its natural end for special effects 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 appropriate control anticlockwise but with other ...

Page 8: ...eo A D The ISA430 can be used as a high quality stereo converter channel for final mastering or for analogue transfer to digital by adding the optional ISA430 digital output board The external input and the line input when BYPASS 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 ...

Page 9: ...gue Out OP1 Analogue Out INT DIRECT TO A D Int Transformer Transformer Mix External Signal into Internal Signal Transformer Ext Digital Out Digital Out Digital Out SWAP WITH DYNAMICS PRE EQ SEND RETURN POST MID LIMITER LIMITER LIMITER SUM LIMITER LIMITER METER METER METER METER METER O P O P O P A D CARD O P MODE 1 STANDARD O P MODE 2 SUM O P MODE 3 A D DIRECT A D CARD A D CARD INSERT SWITCHING Ou...

Page 10: ...hrough 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 ISA430 Digital Output Board Stereo A D Converter 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 ...

Page 11: ...ocessing and dual mono EQ can be used as a stereo channel The stereo channel can then be routed to a single optional ISA430 Digital Output Board allowing A D conversion of the stereo signal This example shows how to use the ISA430 in split mode as a mixdown tool The ISA430 is simultaneously allowing EQ processing on audio from the console CH1 and Dynamics processing on audio fromthe console CH2 an...

Page 12: ...Bu This input has two modes of operation INSERT IN the connector is the return or input to the signal path determined by the Pre Mid and Post selector and the Dyn 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 Unbalanced from any high impedance source such as guitar or bass pickups Operating Level 10dBu Maximum I P Lev...

Page 13: ...Access Inc Phone 00 81 52 443 5537 Fax 00 81 52 443 7738 Korea Best Logic Sound Co Phone 00 82 2 515 7385 Fax 00 82 2 516 7385 R O Maldives Island Acoustics Phone 00 960 32 0032 Fax 00 960 31 8624 Mexico Vari Phone 00 525 604 6946 Fax 00 525 605 9656 Netherlands Total Audio BV Phone 00 31 20 4476447 Fax 00 31 20 4476464 New Zealand Protel Phone 00 64 4 801 9494 Fax 00 64 4 384 2112 Norway Lydromme...

Page 14: ...53 Copy this template to record your own control settings for future use ...

Page 15: ...srite Audio Engineering Ltd Lincoln Road High Wycombe Bucks HP12 3FX England Tel 44 0 1494 462246 FAX 44 0 1494 459920 e mail sales focusrite com www focusrite com Focusrite a u d i o e n g i n e e r i n g ...

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