SKU: 88317951500

Marantz AMP 20 12Ch Power Amplifier

$4050.00 $4500.00
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Ships within 48 hours · Estimated delivery Jul 15 - Jul 20

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Description

Marantz AMP 20 12Ch Power AmplifierKey Features Detailed and immersive sound transforms your home theatre 200 watts per channel into 8 400 watts per channel into 4 12 channels powers large home theatres Bi amp mode drives high and low frequency sections of loudspeakers independently BTL Mode (Bridge mode) combines two channels into a single 400 watt per channel into 8 Perfect match for Marantz AV 20 preamplifier Balanced XLR input is ideal for reducing input noise Porthole with

Key Features

  • Detailed and immersive sound transforms your home theatre
  • 200 watts per channel into 8Ω / 400 watts per channel into 4Ω
  • 12 channels powers large home theatres
  • Bi-amp mode drives high- and low-frequency sections of loudspeakers independently
  • BTL Mode (Bridge mode) combines two channels into a single 400-watt per channel into 8Ω
  • Perfect match for Marantz AV 20 preamplifier
  • Balanced XLR input is ideal for reducing input noise
  • Porthole with analogue meter measures output
  • Soft side lights cast a warm glow on the front surface of the amplifier
  • Elegant design matches rich, warm sound

 

 

Powerful, Low-Distortion Performance

AMP 20 delivers exceptional power and clarity across various configurations. Designed with the same premium standards as the AMP 10, this 12-channel amplifier provides 200 watts per channel into 8 ohms (1kHz, THD 0.05% with 2 channels driven), offering reliable performance for advanced speaker setups.

 

Flexible Output Options

AMP 20 supports bridging two 200W channels into a single 400W channel using BTL (Bridge-Tied Load) mode, accommodating up to six bridged outputs. It also enables bi-amping for up to six loudspeakers, and offers both balanced (XLR) and unbalanced (RCA) input connections.

 

Ideal for Marantz System Integration

AMP 20 integrates seamlessly with other Marantz components. It serves as a powerful upgrade for CINEMA 30 users or as a match for AV 10 preamps when fewer channels are needed. For systems requiring more than 12 channels, users can opt for the 16-channel AMP 10 instead.
 

 

Premium Design and Engineering

AMP 20 and AV 20 reflect Marantz’s pursuit of premium performance, elegant design, and engineering excellence—broadening their high-end home theater offerings.
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 88317951500

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4.1 ★★★★★
Based on 29 reviews
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Verified Purchase
Hatem
San Leandro, US
★★★★★ 5
Klipsch R50 M next generation
Size: 5.25” Woofer
In spite of small size sound is very nice iam using it with a subwoofer and with my yamaha A4A AV receiver i like it iam hearing mostly heavy metal and the speakers have a nice punch and attack
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 18, 2026
Y
Verified Purchase
Yaniv.F
Dallas, US
★★★★★ 4
compact surrounds that blend well with the right setup
Size: 4” Woofer
I picked up the Klipsch R‑40M as part of a full 5.1 system built around the R‑50M fronts and the R‑50C center. My original plan was to use another pair of R‑50M speakers in the back, but they simply didn’t fit in the rear cabinet space I have. The R‑40M ended up being the only model that fit comfortably, so they became my surround channels. In terms of build quality, they feel solid and consistent with the rest of the Reference Next‑Gen line. The copper woofers and updated horn design give them the same visual identity as the larger models, which helps the whole system look cohesive. They’re compact enough to place in tighter spaces without compromising too much on performance. Sonically, the R‑40M does a respectable job as a surround speaker. Effects are clear, directional cues are easy to follow, and they integrate smoothly with the more powerful R‑50M fronts. That said, they are noticeably less powerful than the R‑50M, so you need to spend a little time balancing your levels. Once I bumped their channel trim a bit and adjusted the distance settings, the rear soundstage locked in nicely and felt much more even. They won’t deliver the same fullness or dynamic punch as the larger models, but for rear channels that’s usually not a deal breaker. What matters is clarity and consistency, and the R‑40M handles both well. Movies with active surround mixes feel immersive, and ambient effects wrap around the room without calling attention to the speakers themselves. If you’re building a system where space is limited in the back, the R‑40M is a practical and capable choice. Just be prepared to fine tune your calibration so they match the output of the bigger speakers up front. Once dialed in, they round out a 5.1 setup very effectively.
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Reviewed in the United States on January 22, 2026
I
Verified Purchase
Integrion
Port Orchard, US
★★★★★ 5
Great Bang for the Buck!
Size: 5.25” Woofer
These R50 Studio Monitors are worth every penny. One could easily spend a heck of a lot more to get less. Have been a pro audio engineer my entire life. These monitors kick out clean, solid bass and accurate highs. Klipsch did a excellent job designing these monitors. Perfect for smail spaces where fidelity is critical. If you wall mount these, make sure you leave at least a 1.5 inch air gap between the back of the monitor and the wall. These units are sweet.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 22, 2025
K
Verified Purchase
Kgolfinghawaii
Charlottesville, US
★★★★★ 5
Worth the price
Size: 5.25” Woofer
I had in ceiling front speakers and went with these instead. The front ceilings are now height speakers. Sounds great now.
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Reviewed in the United States on January 23, 2026
A
Verified Purchase
Amazon Customer
Boise, US
★★★★★ 5
Small but mighty
Size: 5.25” Woofer
Great sound. I can turn my stereo up loader than I care to listen to it and notice no distortion.
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Reviewed in the United States on April 20, 2026

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