Top Panel Features

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MIC Input Section

There are two completely independent microphone preamplifiers, arranged in vertical columns. The left column controls mic input 1, and the right column controls mic input 2. Each section contains a most wonderful Mackie Onyx premium-quality microphone preamplifier.

19. LEVEL

These knobs adjust the gain of the mic preamps for any mics plugged into the mic [1] input jacks. The gain is adjustable from 0 (unity gain) up to +60 dB of gain. Adjust the knobs so that the loudest speaking or shouting into the microphone just barely lights the OL LEDs

[21].This gives the best signal-to-noise ratio for the microphone preamp.

20. SIG LEDs

These LEDs act as signal present indicators. They light when the microphone signals reach –20 dBu, to give you a clue that the microphones are working.

22. 48V LED

This LED illuminates when the rear panel 48V phantom power [2] button is pressed in, and 48V phantom power is applied to the mic XLR inputs.

23. HIGH EQ

These knobs give your mic signals up to 15 dB of boost and cut, at 12 kHz and above. At the center position

U (unity gain), there is no effect on the signal. (If all three EQ controls are set to minimum, the mic signals are attenuated –15 dB across the audio range.)

24. MID EQ

These knobs give your mic signals up to 15 dB of boost and cut, at 2.5 kHz, with no effect at position U.

25. LOW EQ

These knobs give your mic signals up to 15 dB of boost and cut, at 80 Hz and below, with no effect at position U.

26. AUX

These knobs allow you to adjust how much of the microphone signal goes onto the aux bus (wet), and how much goes to the main mix (dry).

Wet: Mic signals only go onto the aux bus.

Dry: Mic signals only go onto the main mix bus.

Middle position: Mic signals are split evenly between the aux and main mix.

“Wet” is a term used for signals that have passed through an audio processor, such as an external valvezilla-warmulator 2000. “Dry” is a term used for signals thankfully not passed through such a processor. So this control lets you finely adjust the amount of vocal loveliness available for external processing, and how much is available unprocessed for the main mix.

Note: Always set these controls to dry if you

do not want to add mics to the aux loop for ex-

ternal processing. Otherwise your mic signals

to the main mix will be attenuated.

This control does not affect the mic direct FireWire outputs to your computer.

Manual Owner’s

21. OL LEDs

These light when the microphone signals reach 3 dB below clipping. It’s okay if they blink occasionally, but if they are blinking frequently or are lit continuously, turn down the level [19] controls until they just blink occasionally.

27. MAIN

These knobs allow you to adjust how much of the microphone signal goes onto the main mix bus. It also affects the mic signals reaching the aux bus and FireWire.

Owner’s Manual

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