Marantz AMP 20 12-Channel Power Amplifier

Reference 12-channel amplifier rated at 200 W per channel into 8 Ω, with balanced line-level inputs and selectable output modes

The Marantz AMP 20 is a reference 12-channel power amplifier designed to deliver commanding performance across an immersive home theater system. It features Marantz’s exclusive Class D amplification and HDAM-SA2 technology, and is intended to pair with the Marantz AV 20 as part of a top-tier separates-based theater installation. 

The Upscale View

Marantz is one of very few household-name audio brands that we recommend even to critical listeners. Marantz has been able to stay on top of technological advances without losing sight of its heritage. For home cinema especially, we unhesitatingly recommend Marantz as the affordable yet high-fidelity solution when most of your hard-earned money is going into your reference stereo rig.

Power and Flexibility

The AMP 20 brings 12 discrete channels of amplification to your theater setup, each capable of producing 200 W into 8 ohms. Channels can also be configured with bridged (BTL) or bi-amp modes for increased power or specialized speaker deployments. 

Connectivity includes balanced XLR and unbalanced RCA inputs, speaker terminals for all 12 channels, plus control provisions including RS232, IR Flasher In, Marantz Remote Bus, and DC trigger input/output. A porthole analog meter displays output levels while soft side lighting accentuates the front panel. 

What's In the Box

• Marantz AMP 20
• Quick start guide
• AC cord
• Amp control cable
• Remote control cable
• SP terminal wrench

Specifications

Number Of Channels: 12

Power Output
(8 Ω, 2ch Drive) Normal / BTL: 200 W / 400 W

Power Output
(4 Ω, 2ch Drive) Normal: 400 W

Inputs: 12 x RCA line, 12 x XLR line, IR, DC control, Remote, RS232

Outputs: 12 x SPKT-1+ pair, DC control, Remote

Control & Monitoring: Level meter, RS232, IR flasher in, Marantz Remote Bus, DC trigger input/output

Power Consumption (Operation, No-Sound, Stand-By): 400 W, 110 W, 0.2 W

Maximum Dimensions (W × D × H): 17.4" × 17.4" × 7.5" (442 × 442 × 191 mm)

Weight: 39.7 lb. (18 kg)