MCM-8 Iss1
Preliminary User Guide v1.1
2
INTRODUCTION
The MCM-8 is an OST
TM
8 channel 500 Series Enclosure WITH mixer functions.
OST is a Heritage Audio proprietary technology which eliminates module’s interaction through
the power supply feeding each slot with independent supply stages.
The mixer follows a passive voltage summing topology, having the gain loss restored by a
classic 1073 type class A output stage.
The outputs of the 8 slots are hardwired to the 8 summing mixer’s main inputs, therefore
independent use of the 500 series modules and summing mixer features is not possible.
FRONT PANEL OVERVIEW
Upper row on the front panel is dedicated to the 8 mixer’s main inputs.
Controls per channel are as follows:
-
ON: When pressed, the output of the slot is added to the mix bus. When depressed,
it’s muted.
-
FADER: Attenuates the signal sent to the mix bus from unity to minus infinity. Fader all
clockwise means unity gain, whilst 12 o’clock means an approximate 20 dB of
attenuation. (or -20dB of gain ).
-
PAN: Places the signal within the stereo spectrum, left, center, right or any
intermediate setting. The panoramic law follows a standard in which if a 0dB signal is
hard panned, it is -3dB when center panned.
Lower zone is dedicated to the 500 series modules. Any module following the API protocol
(both mechanically and electrically) will be compatible with the unit.
