The Heritage Audio MCM-8 II is an evolution of the MCM8, a true transformer-based voltage summing mixer for 500 Series modules. The main differences between this version and its predecessor is the MCM-8 II has extra buttons per channel, allowing to bypass the 500 series module when mixing if desired. It also allows for quick comparisons between processed/ unprocessed signals and makes using the mixer with empty slots quite easier. Simply un-pressing the 500 button allows for this type of operation. The MCM-8 II also features significant lower noise. A highly innovative, quasi-balanced voltage summing topology sets the noise floor of the MCM8 II to the theoretical minimum, eliminating the hiss in your mix. On Slot Technology takes advantage of last-generation power electronics to handle power supplies on a “per slot” basis. Each slot has its own power supply linear regulation stages and therefore, modules are isolated from the rest. They just share the metal enclosure. Each slot features test LEDs for checking correct power operation (red for +16v, green for -16v), located aside of the slot connector. Thanks to the use of OST, the power capability of the MCM-8 is 400mA per rail per slot maximum, with an overall of 1.4A (1.6A non continuous) per rail, whichever is reached first.