Hardware Features; Front Panel - Focusrite Clarett 8 Pre User Manual

Hardware Features

Front Panel

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The . front . panel . includes . all . the . input . gain . and . monitoring . controls . as . well . as . two . of . the . input .
connectors .for .Mic, .Line .and .Instrument .signals.
1. . INPUTS 1 & 2 . – . "Combo . XLR" . input . sockets . - . connect . microphones, . instruments . .
(e.g., . g uitar), . o r . l ine . l evel . s ignals . v ia . X LR . o r . ¼ " . j acks . a s . a ppropriate. . E ither . T RS . ( balanced) . o r .
TS .(unbalanced) .jack .plugs .can .be .used .for .instruments .or .line .level .signals. .
2. . 48V . – . t wo . s witches . e nabling . 4 8 . V . p hantom . p ower . a t . t he . X LR . c ontacts . o f . t he . C ombo . c onnectors .
for . mic . inputs . 1-4 . and . 5-8 . respectively. . (Note . that . inputs . 3 . to . 8 . are . on . the . rear . panel.) . .
The .switches .each .have .an .associated .red .LED .indicating .that .phantom .power .is .selected.
3. . Gain . 1 . to . 8 . – . eight . rotary . controls: . adjust . the . input . gain . for . the . signals . at . Inputs . 1 . to . 8 .
respectively.
4. . INST .– .two .red .LEDs .which .illuminate .when .INST .mode .is .selected .for .the .jack .contacts .of .
Inputs . 1 . o r . 2 . f rom . F ocusrite . C ontrol . s oftware. . W hen . I NST . i s . s elected, . t he . g ain . r ange . a nd . i nput .
impedance .are .altered .(relative .to .LINE), .and .the .input .is .made .unbalanced. .This .optimises .
it .for .the .direct .connection .of .instruments .via .a .2-pole .(TS) .jack .plug. .When .INST .is .off, .the .
inputs . a re . s uitable . f or . t he . c onnection . o f . l ine . l evel . s ignals. . L ine . l evel . s ignals . m ay . b e . c onnected .
either .in .balanced .form .via .a .3-pole .(TRS) .jack .or .unbalanced, .via .a .2-pole .(TS) .jack.
5. . AIR .– .eight .yellow .LEDs .– .one .per .input .- .which .illuminate .when .the .AIR .function .is .selected .
for .the .input .from .Focusrite .Control. .AIR .modifies .the .frequency .response .of .the .input .stage .
to .model .the .classic, .transformer-based .Focusrite .ISA .mic .preamps.
6. . Meters . – . ten . 6-segment . LED . bargraph . meters . indicating . a) . the . signal . levels . of . the . eight .
analogue . input . signals . (meters . 1 . to . 8), . and . b) . the . signal . levels . at . the . MONITOR 1 . and . 2
outputs .(meters .L .and .R). .The .input .meters .show .signal .level .after .the .input .gain .stage, .and .
thus . their . indication . is . affected . by . the . gain . controls. . The . output . meters . show . signal . level .
before . the . monitor . level . control . [10], . which . therefore . does . not . affect . their . indication. . The .
LEDs .illuminate .at .-42 .(green, ."signal .present"), .-18 .and .-12 .dBFS .(green), .-6 .and .-3 .dBFS .
(yellow) .and .0 .dBFS .(red). .A .level .of .0 .dBFS .implies .digital .clipping, .and .should .always .be .
avoided.
7. . . – . a . green . LED . which . illuminates . when . the . unit . has . established . a . connection . with . the .
computer .to .which .it .is .connected.
8. . MIDI – . a . g reen . L ED . w hich . i lluminates . w hen . M IDI . d ata . i s . b eing . r eceived . a t . t he . r ear . p anel . M IDI .
IN .port.
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