Yamaha MG20 Non Powered Mixer - 20 Input

The Yamaha MG20 is a 20-channel analog mixing console, representing one of the larger models in Yamaha's popular MG series. It's designed for live sound reinforcement, fixed installations, and larger rehearsal spaces where a substantial number of inputs and flexible routing are required.

Like the MG16, the standard MG20 (without an "X" or "XU" suffix) focuses purely on high-quality analog signal processing. This means it does NOT have built-in digital effects or a USB audio interface. Its strength lies in providing a clean, robust, and straightforward analog mixing experience with ample inputs and outputs.

Here's a detailed breakdown of its key features and specifications:

Channels and Inputs:

• Total Channels: 20 input channels.

• Mono Mic/Line Inputs (XLR/TRS Combo Jacks): 12 channels (Channels 1-12).

  • Equipped with Yamaha's highly acclaimed "D-PRE" studio-grade discrete Class-A microphone preamps. These preamps are renowned for their transparent, natural, and low-noise characteristics, using an inverted Darlington circuit for superior performance.

  • +48V Phantom Power: Switchable, typically in groups (e.g., Channels 1-8 and 9-12), to power condenser microphones.

  • PAD Switch: 26 dB attenuation, essential for handling high-level input signals (e.g., from drums, loud guitar amps, or active DI boxes) to prevent input clipping.

  • High-Pass Filter (HPF): 80 Hz, 12 dB/octave, to eliminate unwanted low-frequency rumble and improve clarity in the mix.

  • 1-Knob Compressors: On channels 1-12, providing simple yet effective dynamics control with a single rotary knob. This is a very user-friendly feature for quickly optimizing vocal or instrument dynamics, even for less experienced operators.

• Mono/Stereo Line Inputs (TRS/RCA Jacks): 4 channels (Channels 13/14, 15/16, 17/18, and 19/20). These versatile channels can accept either a single mono XLR microphone input (with D-PRE preamp, HPF, PAD, but no 1-knob compressor) or stereo TRS line inputs.

• Note on Mic Inputs: While it has 20 total inputs, Yamaha specifies it has "Max. 16 Mic / 20 Line Inputs (12 mono + 4 stereo mic/line inputs)". This means 12 dedicated mono mic inputs and 4 stereo inputs that can also accept mic inputs via XLR, bringing the total potential mic inputs to 16.

Outputs:

• Stereo Out: 2 x XLR balanced outputs and 2 x TRS balanced outputs for connecting to main PA speakers or recording devices.

• Monitor Out: 2 x TRS outputs for connecting to stage monitors or control room monitors.

• Phones Out: 1 x 1/4" stereo headphone jack with level control.

• AUX Sends: 4 x TRS outputs (AUX 1-4). These are highly versatile for creating separate monitor mixes for musicians, or for sending signals to external effects processors.

• GROUP Out: 4 x TRS outputs (GROUP 1-4). This is a crucial feature for larger mixes, allowing for efficient sub-mixing of multiple channels (e.g., all drums, all vocals, or all guitars) to a single stereo or mono group, providing more comprehensive control over the overall mix.

Buses:

• 1 Stereo Bus

• 4 GROUP Buses (for flexible sub-mixing)

• 4 AUX Buses (for monitor mixes or external effects)

Processing & Control:

• Channel EQ:

  • 3-band EQ (High, Mid, Low) with sweepable mid-frequency on mono channels (1-12): This offers precise tonal control for instruments and vocals, allowing you to cut or boost specific frequencies.

  • 2-band EQ (High, Low) on stereo channels (13-20).

• Faders: All input channels, group masters, and the stereo master feature smooth-action 60mm faders for tactile and accurate level control.

• Peak LEDs & Level Meters: For visual monitoring of signal levels, helping to prevent clipping and ensure optimal gain staging.

Construction & Design:

• Metal Chassis: Rugged, durable, and impact-resistant all-metal chassis designed to withstand the rigors of frequent use and transport.

• Internal Universal Power Supply: Simplifies setup and reduces cable clutter by eliminating the need for an external power adapter.

• Rack-Mountable: An included rack-mount kit allows for convenient installation into a standard equipment rack, despite its size.

• Color-Coded Controls: For easy visual identification and intuitive operation.

The Yamaha MG20 is a professional-grade analog mixer that provides a high-quality, reliable, and straightforward solution for mixing a significant number of inputs. Its emphasis on pristine analog sound, flexible routing options, and robust build quality makes it a workhorse for many audio applications.