The Great River MixMaster 20 is a comprehensive analog tracking and summing mixer for DAW systems, featuring four transformer-coupled mic preamps, four aux sends, cue mix outputs, inserts, automation capabilities, monitor management, and talkback facilities.
The Great River MixMaster 20 offers hybrid analog/digital studios the sonics and functionality of a large-format console in a 3U rackmount chassis that can fit comfortably in the rack of console furniture for composers who track their own music, or mixers who occasionally record. The MixMaster 20 features four transformer-coupled, high-gain, low-noise mic preamps with front-panel polarity and phantom power switches, that can bring out the best in any microphone, whether it’s dynamic, ribbon, or condenser. Transformer-coupled input bridging amplifiers with wide gain ranges, suitable for anything from keyboards to tape machines handle line and instrument inputs. Each of the four input channels has a balanced insert point, as well as four auxiliary output mix sends. Each channel may also be fed to the main stereo mix bus. Mixing duties are handled by the four input channels plus the 16 transformerless line input channels.
Great River MixMaster 20—Just the Facts
- Tracking, mixing, and editing for DAW systems
- Four transformer-coupled preamps
- Four aux sends
- 20-channel summing mixer with four transformer-coupled inputs, 16 transformerless inputs
- Mix settings can be stored and recalled via USB
- Control room monitoring
- Speaker A and B control
- Penny & Giles stereo fader
- Versatile solo system
- Multiple speaker system selector and level control,
- Mix replay monitoring
Great River MixMaster 20—Under the Hood
Mixing duties are handled by the four input channels plus the 16 transformerless line input channels. Each of these channels has fully controllable level and pan settings to the stereo mix bus. Each of the four input channels has a balanced insert point as well as four auxiliary output mix sends. Each channel may also be fed to the main stereo mix bus. Mix settings can be stored and recalled via the USB port and a GUI compatible with most digital recording programs is in development to make the MixMaster 20 an automated analog mixer.
The mixing is done passively, with the summing gain provided by transformer coupled mixing amplifiers. The balanced output of this stage is available as a patch point for the insertion of compressors, equalizers or other signal processing equipment. The return is also transformer balanced and feeds the Penny & Giles stereo fader and output line amplifier, also transformer coupled. Control room monitoring functions are also provided. These include a versatile solo system, multiple speaker system selector and level control, mix replay monitoring and talkback. Talkback feeds the cut outputs and dims the main monitoring system to aid communications and minimize feedback.