User Manual

MCM-8 II Iss2
Preliminary User Guide v2.0
2
MCM8 II VS MCM8
In 2015, Heritage Audio set a new standard in 500 Series enclosures with the addition of the
OST technology. Further, we introduced the MCM8, a true transformer-based voltage
summing mixer for 500 Series modules.
Hundreds of units later, we have taken all our customer´s feedback and included it in the new
version, the MCM8 II.
The main differences in between this version and its predecessor are:
- Extra 500 series button per channel, allowing to bypass the 500 series module when
mixing if desired. It also allows for quick comparisons in between processed/
unprocessed signals. It also makes using the mixer with empty slots quite easier. Just
un pressing the 500 button allows for this type of operation.
- Significant lower noise: A highly innovative, new quasi-balanced voltage summing
topology sets the noise floor of the new MCM8 II touching the theoretical minimum.
No more hiss into your mixes!
INTRODUCTION
The MCM-8 II 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 ´73 type class A output stage.