Heritage Audio MCM20-4

Heritage Audio MCM20-4 is a 20-channel summing mixer with subgroups and auxiliary outputs, rack-mountable.

MCM20.4 is a 20-channel mixer with 4 additional outputs (2 mono and 1 stereo) and an output stage of Class A 1073. Sixteen channels are arranged in two rows of eight on the front panel. These channels are actively grouped into 2 stereo subgroups. Access to the 4 additional inputs, which are hard-panned left and right with unity gain, can be found on the rear panel of the unit. They can be used for FX returns, cascading mixers, or simply as additional stereo channels.

MCM20-4 Features

• 20-channel summing mixer
• 16 channels with volume controls, pan, and mute
• 2 stereo output channels with unity gain
• Output stage Class A 1073
• 2 subgroups and 3 auxiliary sends
• Stereo mix and monitor output
• Active summation in subgroups and passive summation in the master bus

MCM20-4 Specifications

• Channel Input Impedance: Greater than 20 kΩ.
• Maximum channel input level: Greater than +26 dBu.
• Maximum insert return input level: Greater than +26 dBu.
• Maximum insert send level: Greater than +27 dBu, able to drive 600 Ω.
• Maximum output level: Greater than +26 dBu into 600 Ω.
• Frequency response: ±0.5 dB 20 Hz to 20 kHz.
• THD + N: Not more than 0.07 % from 50 Hz to 10 kHz at +20 dBu output (22 Hz to 22 kHz bandwidth) into 600 Ω.
• Noise, all faders up, all subgroups in, measured at the main output, better than -80 dBu.