Yamaha MG20 20-Input, 6-Bus Mixer – 12RU Rackmountable (MG20)
The Yamaha MG20 offers expanded input capacity and precise control in a sturdy rackmountable format. With 20 input channels—12 mono mic/line and 4 stereo line inputs—it’s ideal for live sound, studio sessions, and permanent installations. The MG20 features Yamaha’s D-PRE mic preamps with inverted Darlington circuitry, 1-knob compressors, and a universal internal power supply for global use. A rugged metal chassis and included rack-mount kit make it road-ready and installation-friendly.

Features

• 20-channel mixer with 12 mono mic/line and 4 stereo line inputs
• 4 GROUP buses + 1 stereo bus, and 4 AUX sends
• D-PRE mic preamps with inverted Darlington circuit
• 1-knob compressors on mono inputs
• PAD switch and 3-band EQ on mono channels
• +48V phantom power for condenser microphones
• XLR balanced main outputs
• Internal universal power supply (100–240V)
• Rack-mount kit included
• Rugged metal chassis

Specifications

I/O
- Phantom Power: +48V
- Mono [MIC/LINE] Inputs: 12
- Mono/Stereo [MIC/LINE] Inputs: 4
- Stereo Out: 2
- Monitor Out: 1
- Phones Out: 1
- AUX Sends: 4
- Group Outs: 4

Bus Configuration
- Stereo: 1
- Group: 4
- AUX: 4

Input Channel Functions
- PAD: 26 dB (Mono)
- High-Pass Filter: 80 Hz, 12 dB/oct (Mono/Stereo: MIC only)
- Compressor: 1-knob (Gain/Threshold/Ratio)
- Compressor Threshold: +22 dBu to -8 dBu
- Compressor Ratio: 1:1 to 4:1
- Compressor Output Level: 0 dB to +7 dB
- Compressor Attack Time: ~25 ms
- Compressor Release Time: ~300 ms
- EQ High: ±15 dB, 10 kHz shelving
- EQ Mid: ±15 dB, 250 Hz – 5 kHz peaking (Mono); 2.5 kHz peaking (Stereo)
- EQ Low: ±15 dB, 100 Hz shelving
- Peak LED: Lights when post-EQ signal is within 3 dB of clipping (Mono)
- Level Meter: 2 x 12-segment LED (PEAK to -30 dB)

Performance
Total Harmonic Distortion:
- 0.03% @ +14 dBu (20 Hz–20 kHz), GAIN Min
- 0.005% @ +24 dBu (1 kHz), GAIN Min
- Frequency Response: +0.5 dB / -1.5 dB (20 Hz–48 kHz), GAIN Min
- Equivalent Input Noise: -128 dBu (Mono Input, Rs: 150Ω, GAIN Max)
- Residual Output Noise: -102 dBu (Stereo Out, Master Fader Min)
- Crosstalk: -78 dB

Power
- Power Requirements: AC 100–240V, 50/60 Hz
- Power Consumption: 36W

Dimensions
- Width: 444 mm (17.5")
- Height: 130 mm (5.1")
- Depth: 500 mm (19.7")

Weight
- Net Weight: 6.9 kg (15.2 lbs.)

Accessories
- Included: Owner’s Manual, Technical Specifications, AC power cord, Rack-mount kit

Others
- Operating Temperature: 0°C to +40°C