Manley MONO & DUAL MONO TUBE DIRECT INTERFACE MODELS Manual de usuario descargar pdf (Pagina 5)

FRONT PANEL

A B C D E F

BASS FULL

BASS MEDIUM

GUITAR / SYNTH

GUITAR MEDIUM

GUITAR BRIGHT

POWER ON

OFF

INSTRUMENT

INPUT

LIFT

GROUND

CONSOLE

BOOST

UNITY

A GROUND LIFT Disconnects chassis earth from Pin 1 on the XLR console output.

If at first it hums - switch this. In general, if there is an amp involved then the best

place to start is in the "LIFT" position.

B GAIN SELECT Selects low or high gain feeding the XLR "OUT TO CONSOLE".

Both labels "CONSOLE BOOST" and "UNITY" need explanation. "UNITY" refers

to power conversion similar to the way a good transformer works. The voltage is

lower and the current is stronger but the power stays the same. The voltage loss is 23

dB and in a good range for all console mic preamps to handle well. "CONSOLE

BOOST" mode adds 17 dB of voltage gain over "UNITY". The voltage loss is about

6 dB. This is a good setting when the instrument has a low output or when feeding

several consoles in a live setting due to losses in splitters.

C INSTRUMENT INPUT Standard 1/4 inch phono high impedance instrument input.

Input impedance is 1 meg ohm. This is not a "speaker" style input.

D INPUT SELECT Selects between five types of 6 dB per octave low frequency roll-

off: BASS FULL is the closest to a "flat setting". BASS FULL = 12 Hz / -3 dB,

BASS MED = 42 Hz, GUITAR/SYNTH = 100 Hz, GUITAR MED = 250 Hz,

GUITAR BRIGHT = 550 Hz. All settings have a gentle roll-off on the highs (15 kHz

-3 dB) to avoid some of the harshness of typical DI's and to better approximate a

clean amp-like sound. Do not feel that these basic labels will be the best for your

application. Use your ears and taste and go for the "feel" first.

E POWER SWITCH Switch up to turn on the power, down to turn the power off.

F POWER LED Illuminates when the preamplifier is powered up.

The Dual Mono Tube direct shares the same features as the mono unit only it

has two of everything....

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Manley MONO & DUAL MONO TUBE DIRECT INTERFACE MODELS Manual de usuario Pagina 5