Owner manual

For optimum performance at line level, this module employs a double-balanced,

instrumentation-grade input amplifier (3 x ICs) rather than the inferior differentially-

balanced amplifier (1 x IC).

Isolation between inputs (Line 1 and Line 2) is so high, they may remain connected to

the mixer simultaneously. Line 2 input is selected by switch (1).

Phase change (2) precedes the radio-frequency, interference-suppression circuitry.

Input gain is switched in 2dB steps allowing up to 10dB of gain or attenuation (3).

(The switch may be replaced with a potentiometer for continuously-variable control of

input gain.)

The equaliser is identical with that in the microphone/line module and is engaged by

EQ (12).

The clean feed option is also identical with that in the microphone/line module.

The panoramic potentiometer (7) routes the signal proportionately between A and/or

C outputs (L) and B and/or D outputs (R). Routeing switches (8) are independent of

each other and also act as channel mutes.

The overload LED (11) illuminates 3dB before clipping at the input to the channel

fader (equaliser output). Should the overload LED operate, check for excessive

equalisation before reducing the input gain.

S-switch (13) creates a matrix amplifier across an adjacent pair of input modules.

Refer to M-S NOTES.

PFL (9) - with indicator (10) - routes the signal at the fader input to monitor 2, ie the

headphones-output jack. PFL overrides any other signal appearing on monitor 2.

MON (14) routes the true output from the module to the monitor module. This signal

is independent of any other routeing and is derived from the output of the panpot -

and S-switch (13) if selected - and therefore has L and R components. This monitor

signal is auditioned by selecting CH (1) on the monitor module.

The Penny & Giles fader (15) is calibrated 10dB down from its fully open position,

allowing the operator to work with 10dB of gain in reserve. Faders on adjacent

modules can be coupled for stereo operation by the use of standard ganging clips.

(The fader may be calibrated at its fully open position if desired - and the scale

changed accordingly.)