Marantz range
AMP 20
The Marantz AMP 20 is a 12-channel power amplifier intended for high-channel-count immersive rooms that need dense, consistent rack amplification.

Product views
Official manufacturer imagery

Where it fits best
9.1.2/7.1.4-class systems or a twelve-channel block paired with separate LCR amplification.
What to pay attention to
Confirm the exact normal/BTL configuration and pair it with a processor whose output count and gain structure match the planned layout.
Manufacturer-verified essentials
- Architecture: Custom Class D with Marantz HDAM-SA2
- Published output: 12 channels; 200 W/channel; selectable balanced XLR or RCA
- System role: 9.1.2/7.1.4-class systems or a twelve-channel block paired with separate LCR amplification.
Specification source
Published figures are manufacturer specifications. Final system design must account for test conditions, loudspeaker load and installation environment.
Manufacturer specifications reviewedVerified 13 September 2026