4-Bus 4 Group Analog Studio Summing Mixer for Synth Keyboard or DAW Instrument Digital Track line signal mixing

4-Bus 4 Group Analog Studio Summing Mixer for Synth Keyboard or DAW, high-quality 32-channel 4-BUS 4-Group balanced summing mixer designed for synths, keyboards, and DAW digital tracks. Ideal for clean, analog line-level mixing, ensuring precise signal blending and stereo imaging.

Setup & Features:

✅ 1U Standard Rack Unit
✅ 4 Independent Summing Groups (ABCD), each with:

• 3 x Stereo (6) balanced inputs
• 1 x Stereo (2) balanced output
• 4 x Mono switches (1,2,3,4) for mono instruments, ensuring true centered mono placement in the stereo field

Designed for professional studio summing and flexible signal routing, this unit delivers transparent analog mixing with fully balanced connectivity.

Frequency Response (Passive Section) +0, -0.1dB from 10Hz to 30kHz
Maximum level > +28dBu • Noise floor < -94.5dBu 22Hz-22kHz bandwidth
THD+N < 0.004% • IMD < 0.004%
Crosstalk rejection (Passive Section) > 110dB

Do not find your desired gear?  Ask to build Yours!

You can get as many channels and options as you want, so let’s build your gear!

Build time: 15 Working Weekdays after cleared payment

Selected Studio grade VISHAY DALE military metal-film resistors
In/Out: Stereo Balanced Discrete path
Insertion input resistance: -15dB / -20dB / -25dB (order)
Output impedance 600 -1k ohms balanced
Frequency response: 0-500Khz
Crosstalk 1Khz: -95dB
Signal to Noise rate (SNR): -110dB
TRS wiring: (Tip:HOT/,Ring:COLD/Sleeve:GROUND)
Pure hand made! Hand wired and tested point-to-point!
Laser engraved massive aluminium alloy box