Description

Description

The Marantz AMP 20 is a reference-grade 12-channel power amplifier designed to deliver high-performance audio for large-scale immersive home theater systems. Released as a companion to the AV 20 processor, it is expertly crafted in Marantz’s Shirakawa facility in Japan and features a high-current design capable of driving complex speaker loads with absolute fidelity.

Key Features

  • 12-Channel Power: Provides 12 independent channels of amplification, ideal for a complete 7.1.4 or 5.1.6 Dolby Atmos setup from a single chassis.
  • Massive Output: Rated at 200 watts per channel (8 ohms, 1kHz, 0.07% THD) or 400 watts per channel (4 ohms) with two channels driven. 
  • Marantz HDAM-SA2: Employs proprietary discrete topology rather than off-the-shelf ICs, resulting in lower distortion and a more linear, detailed sound. 
  • Custom Class D Amplification: Uses highly efficient custom-developed Class D modules (ICE edge) that allow for massive power without the excessive heat or footprint of traditional Class AB designs. 
  • Flexible System Modes:
    • Bi-Amp Mode: Allows you to use two channels to power a single compatible speaker for improved detail.
    • Bridge (BTL) Mode: Combines channel pairs to deliver up to 400 watts at 8 ohms for high-demand front towers.
  • Premium Power Supply: Features a Marantz proprietary 1,500-watt SMPS power supply shared with the flagship AMP 10, ensuring consistent power delivery under high demand.

Technical Specifications

Category Specification Details
Amplifier Type Reference 12-Channel Power Amplifier
Power Output 200W/ch (8Ω) or 400W/ch (4Ω)
Frequency Response 5 Hz – 70,000 Hz
Signal-to-Noise Ratio 110 dB
Connectivity 12 Balanced XLR and 12 Unbalanced RCA inputs
Dimensions (WxDxH) 44.2 cm x 43.7 cm x 18.9 cm
Weight 18.0 kg
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