[{"id":639668617375,"handle":"all-regularly-priced-items","updated_at":"2026-06-04T10:34:31-06:00","published_at":"2024-11-30T15:25:35-07:00","sort_order":"best-selling","template_suffix":null,"published_scope":"web","title":"All Regularly Priced Items","body_html":null},{"id":280457379999,"handle":"amplifiers","updated_at":"2026-06-04T10:16:57-06:00","published_at":"2021-12-02T11:49:17-07:00","sort_order":"best-selling","template_suffix":"default","published_scope":"global","title":"Amplifiers","body_html":"","image":{"created_at":"2022-01-04T15:32:28-07:00","alt":"Amplifiers","width":2400,"height":953,"src":"\/\/listenup.com\/cdn\/shop\/collections\/amplifiers.png?v=1641335548"}},{"id":280456888479,"handle":"audio","updated_at":"2026-06-04T10:16:56-06:00","published_at":"2021-12-02T11:21:36-07:00","sort_order":"best-selling","template_suffix":"top-level","published_scope":"global","title":"Audio","body_html":"","image":{"created_at":"2022-01-06T15:53:45-07:00","alt":"audio","width":971,"height":386,"src":"\/\/listenup.com\/cdn\/shop\/collections\/audio.png?v=1641509626"}},{"id":297899983007,"handle":"marantz-amplifiers","title":"Marantz Amplifiers","updated_at":"2026-06-01T21:55:23-06:00","body_html":"\u003cdiv style=\"text-align: center;\"\u003e\n\u003ca title=\"Shop all Marantz\" href=\"https:\/\/listenup.com\/pages\/marantz\"\u003eMarantz\u003c\/a\u003e amplifiers elevate your Hi-Fi system to new heights, delivering pure, powerful sound that seamlessly connects your audio sources to loudspeakers. \u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003eThey act as the central hub, expertly crafted with exquisite design, accurate detailing, and hand-tuned components,\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003eensuring an unparalleled listening experience that goes beyond mere function.\u003c\/div\u003e","published_at":"2024-02-27T10:19:11-07:00","sort_order":"manual","template_suffix":"","disjunctive":false,"rules":[{"column":"vendor","relation":"equals","condition":"Marantz"},{"column":"title","relation":"not_contains","condition":"Open Box"},{"column":"title","relation":"contains","condition":"Amplifier"}],"published_scope":"global","image":{"created_at":"2024-05-08T12:40:55-06:00","alt":null,"width":1080,"height":1080,"src":"\/\/listenup.com\/cdn\/shop\/collections\/Marantz_Model_50_Silver_on_Cabinet_Lifestyle.png?v=1715193655"}},{"id":297905389727,"handle":"marantz-av-seperates","updated_at":"2026-04-02T11:58:55-06:00","published_at":"2024-02-27T13:53:18-07:00","sort_order":"manual","template_suffix":"","published_scope":"global","title":"Marantz AV Seperates","body_html":"\u003cdiv style=\"text-align: center;\"\u003e\n\u003ca href=\"https:\/\/listenup.com\/pages\/marantz\" title=\"Shop all Marantz\"\u003eMarantz\u003c\/a\u003e AV Separates revolutionize home entertainment by offering individual audio and video processing components\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003efor unmatched power, precise control, and ultimate flexibility.\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003eUnlike traditional systems, separates deliver powerful audio, stunning visuals, and granular control,\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003eallowing you to mix and match components to create a personalized entertainment experience that grows with your needs.\u003c\/div\u003e","image":{"created_at":"2026-02-05T11:20:31-07:00","alt":null,"width":1800,"height":1800,"src":"\/\/listenup.com\/cdn\/shop\/collections\/ca9c55ed-df33-437c-838e-7c35f1dd85fc.jpg?v=1770315631"}},{"id":280456986783,"handle":"receivers-amplifiers","updated_at":"2026-06-04T10:09:49-06:00","published_at":"2021-12-02T11:25:03-07:00","sort_order":"best-selling","template_suffix":"top-level","published_scope":"global","title":"Receivers \u0026 Amplifiers","body_html":"","image":{"created_at":"2022-01-04T15:21:55-07:00","alt":"Receivers and Amplifiers","width":1146,"height":455,"src":"\/\/listenup.com\/cdn\/shop\/collections\/receivers-amplifiers.png?v=1641334915"}},{"id":301151355039,"handle":"welcome10","updated_at":"2026-06-04T10:41:11-06:00","published_at":"2024-07-02T15:18:25-06:00","sort_order":"best-selling","template_suffix":null,"published_scope":"web","title":"Welcome10","body_html":null}]
The Marantz AMP 20 is a reference 12-channel power amplifier delivering up to 200W per channel (8Ω) for elite home theater performance. Custom-developed Class D amplification and Marantz HDAM-SA2 technology provide dynamic, detailed sound with low noise and exceptional control. Flexible selectable modes—including Bi-Amp and BTL bridging—make it easy to configure high-channel-count theaters or higher-power speaker runs. With balanced XLR input capability, copper-plated chassis construction, and CI controls like RS232 and triggers, AMP 20 is built for premium separates systems.
Get the Details
Features & Specs
Reference-grade 12-channel architecture
Designed to power complex immersive speaker layouts with fewer chassis, cleaner wiring, and consistent voicing across all channels.
High-power output with real control
Rated at 200 W x 2 into 8Ω (0.05% THD) and capable of 400 W x 2 into 4Ω (0.7% THD), AMP 20 delivers slam, clarity, and stability for demanding cinematic peaks.
Selectable Normal, Bi-Amp, and BTL modes
Configure channels for conventional multi-speaker theaters, bi-amp compatible speakers, or bridged power where higher output per speaker run is preferred.
Custom-developed Class D plus Marantz HDAM-SA2
Combines efficient high-power delivery with Marantz’s refinement-focused analog module approach for a more natural, engaging presentation.
Balanced and unbalanced input flexibility (12ch)
Integrates cleanly with premium processors using balanced XLR for reduced noise or unbalanced connections where needed, with strong measured performance including 110 dB SNR and wide bandwidth response.
Built for serious installs
Copper-plated chassis, metal front panel, level meter display, auto power off, and full control options (RS232, IR, remote bus, DC trigger) make it a strong fit for dedicated theaters and custom integration environments.
Reference-grade 12-channel architecture
Designed to power complex immersive speaker layouts with fewer chassis, cleaner wiring, and consistent voicing across all channels.
High-power output with real control
Rated at 200 W x 2 into 8Ω (0.05% THD) and capable of 400 W x 2 into 4Ω (0.7% THD), AMP 20 delivers slam, clarity, and stability for demanding cinematic peaks.
Selectable Normal, Bi-Amp, and BTL modes
Configure channels for conventional multi-speaker theaters, bi-amp compatible speakers, or bridged power where higher output per speaker run is preferred.
Custom-developed Class D plus Marantz HDAM-SA2
Combines efficient high-power delivery with Marantz’s refinement-focused analog module approach for a more natural, engaging presentation.
Balanced and unbalanced input flexibility (12ch)
Integrates cleanly with premium processors using balanced XLR for reduced noise or unbalanced connections where needed, with strong measured performance including 110 dB SNR and wide bandwidth response.
Built for serious installs
Copper-plated chassis, metal front panel, level meter display, auto power off, and full control options (RS232, IR, remote bus, DC trigger) make it a strong fit for dedicated theaters and custom integration environments.
Expert Insight
The AMP 20 took my home theater to a whole new level. The sound is incredibly powerful yet detailed, with a warmth that's distinctly Marantz. Setup was easy, and the performance has been flawless—absolutely worth the investment.
Sarah Tompkins
Brand Manager
Details
Marantz AMP 20 Power Amplifier
Marantz AMP 20 is a reference-grade 12-channel power amplifier built to anchor elite home theater systems with effortless authority and refined musicality. Each channel delivers clean, high-current performance using custom-developed Class D amplification paired with Marantz HDAM-SA2 technology for a dynamic, detailed, and immersive cinematic presentation. Designed for flexible system building, AMP 20 supports Normal, Bi-Amp, and BTL (bridged) modes—making it easy to configure everything from high-channel-count theaters to higher-power bridged speaker runs. Wrapped in Marantz’s iconic design language with a copper-plated chassis, SPKT-1+ speaker terminals, balanced XLR capability, and an analog-style porthole level meter, AMP 20 is the ideal match for the Marantz AV 20 to create a truly reference-level separates system.The Marantz AMP 20 is part of ListenUp's Marantz AV Separates Collection.
What It's Good At:
Driving large home theater systems with 12 channels of high-power amplification in one chassis
Delivering clean, low-noise dynamics with balanced XLR input support and 110 dB SNR (IHF-A)
Offering system-building flexibility with selectable Normal, Bi-Amp, and BTL modes
Producing wide-bandwidth clarity with a 5 Hz – 70 kHz (±3 dB) frequency response
Maintaining stable speaker control across rated impedance ranges (Normal/Bi-Amp and BTL)
Matching premium separates installations with CI-friendly control (RS232, IR, trigger, remote bus)
Marantz AMP 20 Full Specifications:
Product Type: 12-Channel Power Amplifier (Reference series)
Build Location: Crafted in Shirakawa, Japan
Amplification Topology: Custom-developed Class D amplification
Analog Technology: Marantz HDAM / HDAM-SA2 technology
Number of Channels / Power Amps: 12
Power Output (Rated):
8 ohm, 1 kHz, 0.05% THD, 2ch drive: Normal / BTL = 200 W / 400 W
4 ohm, 1 kHz, 0.7% THD, 2ch drive: Normal = 400 W x 2
Maximum Dimensions (W × D × H): 17.4 × 17.4 × 7.5 in.
Weight: 39.7 lbs (18.0 kg)
What's in the Box:
Main unit
Quick start guide
AC cord
Amp control cable
Remote control cable
SP terminal wrench
Marantz AMP 20 Q&A:
What is the Marantz AMP 20 designed for?
AMP 20 is built for reference-level home theater systems that need high channel count and high power, delivering 12 channels of premium amplification in a single chassis.
How much power does AMP 20 deliver per channel?
In Normal mode, it delivers 200 W per channel (8Ω, 1 kHz, 0.05% THD, 2ch drive) and can reach 400 W per channel into 4Ω (1 kHz, 0.7% THD, 2ch drive).
What is BTL mode and why would I use it?
BTL (bridged) mode combines two amplifier channels into one higher-power output, delivering 400 W into 8Ω (1 kHz, 0.05% THD, 2ch drive) for speakers or zones that benefit from extra headroom.
Does AMP 20 support balanced XLR connections?
Yes. It provides balanced and unbalanced main amplifier inputs (12 channels total), selectable via a switch for clean integration with high-end preamps and processors.
Can AMP 20 be used in custom-install and rack-style systems?
Yes. It supports RS232 control, IR flasher input, Marantz remote bus, and DC trigger input/output (1 in / 1 out) for integration-friendly operation.
What speakers can AMP 20 safely drive?
It supports 4–16Ω speaker loads in Normal/Bi-Amp modes and 8–16Ω in BTL mode, helping ensure stable operation across a wide range of speaker designs.
What makes AMP 20 “reference-level” beyond wattage?
It combines custom-developed Class D amplification with Marantz HDAM/HDAM-SA2 technology, a copper-plated chassis, wide frequency response, and a high 110 dB signal-to-noise ratio for clean, controlled performance.
What comes in the box with AMP 20?
The package includes the main unit, quick start guide, AC cord, amp control cable, remote control cable, and an SP terminal wrench.
The Marantz AMP 20 is a reference 12-channel power amplifier delivering up to 200W per channel (8Ω) for elite home theater performance. Custom-developed Class D amplification and Marantz HDAM-SA2 technology provide dynamic, detailed sound with low noise and exceptional control. Flexible selectable modes—including Bi-Amp and BTL bridging—make it easy to configure high-channel-count theaters or higher-power speaker runs. With balanced XLR input capability, copper-plated chassis construction, and CI controls like RS232 and triggers, AMP 20 is built for premium separates systems.
Get the Details
Features & Specs
Features & Specs
Reference-grade 12-channel architecture
Designed to power complex immersive speaker layouts with fewer chassis, cleaner wiring, and consistent voicing across all channels.
High-power output with real control
Rated at 200 W x 2 into 8Ω (0.05% THD) and capable of 400 W x 2 into 4Ω (0.7% THD), AMP 20 delivers slam, clarity, and stability for demanding cinematic peaks.
Selectable Normal, Bi-Amp, and BTL modes
Configure channels for conventional multi-speaker theaters, bi-amp compatible speakers, or bridged power where higher output per speaker run is preferred.
Custom-developed Class D plus Marantz HDAM-SA2
Combines efficient high-power delivery with Marantz’s refinement-focused analog module approach for a more natural, engaging presentation.
Balanced and unbalanced input flexibility (12ch)
Integrates cleanly with premium processors using balanced XLR for reduced noise or unbalanced connections where needed, with strong measured performance including 110 dB SNR and wide bandwidth response.
Built for serious installs
Copper-plated chassis, metal front panel, level meter display, auto power off, and full control options (RS232, IR, remote bus, DC trigger) make it a strong fit for dedicated theaters and custom integration environments.
Reference-grade 12-channel architecture
Designed to power complex immersive speaker layouts with fewer chassis, cleaner wiring, and consistent voicing across all channels.
High-power output with real control
Rated at 200 W x 2 into 8Ω (0.05% THD) and capable of 400 W x 2 into 4Ω (0.7% THD), AMP 20 delivers slam, clarity, and stability for demanding cinematic peaks.
Selectable Normal, Bi-Amp, and BTL modes
Configure channels for conventional multi-speaker theaters, bi-amp compatible speakers, or bridged power where higher output per speaker run is preferred.
Custom-developed Class D plus Marantz HDAM-SA2
Combines efficient high-power delivery with Marantz’s refinement-focused analog module approach for a more natural, engaging presentation.
Balanced and unbalanced input flexibility (12ch)
Integrates cleanly with premium processors using balanced XLR for reduced noise or unbalanced connections where needed, with strong measured performance including 110 dB SNR and wide bandwidth response.
Built for serious installs
Copper-plated chassis, metal front panel, level meter display, auto power off, and full control options (RS232, IR, remote bus, DC trigger) make it a strong fit for dedicated theaters and custom integration environments.
Expert Insight
Expert Insight
The AMP 20 took my home theater to a whole new level. The sound is incredibly powerful yet detailed, with a warmth that's distinctly Marantz. Setup was easy, and the performance has been flawless—absolutely worth the investment.
Sarah Tompkins
Brand Manager
Details
Details
Marantz AMP 20 Power Amplifier
Marantz AMP 20 is a reference-grade 12-channel power amplifier built to anchor elite home theater systems with effortless authority and refined musicality. Each channel delivers clean, high-current performance using custom-developed Class D amplification paired with Marantz HDAM-SA2 technology for a dynamic, detailed, and immersive cinematic presentation. Designed for flexible system building, AMP 20 supports Normal, Bi-Amp, and BTL (bridged) modes—making it easy to configure everything from high-channel-count theaters to higher-power bridged speaker runs. Wrapped in Marantz’s iconic design language with a copper-plated chassis, SPKT-1+ speaker terminals, balanced XLR capability, and an analog-style porthole level meter, AMP 20 is the ideal match for the Marantz AV 20 to create a truly reference-level separates system.The Marantz AMP 20 is part of ListenUp's Marantz AV Separates Collection.
What It's Good At:
Driving large home theater systems with 12 channels of high-power amplification in one chassis
Delivering clean, low-noise dynamics with balanced XLR input support and 110 dB SNR (IHF-A)
Offering system-building flexibility with selectable Normal, Bi-Amp, and BTL modes
Producing wide-bandwidth clarity with a 5 Hz – 70 kHz (±3 dB) frequency response
Maintaining stable speaker control across rated impedance ranges (Normal/Bi-Amp and BTL)
Matching premium separates installations with CI-friendly control (RS232, IR, trigger, remote bus)
Marantz AMP 20 Full Specifications:
Product Type: 12-Channel Power Amplifier (Reference series)
Build Location: Crafted in Shirakawa, Japan
Amplification Topology: Custom-developed Class D amplification
Analog Technology: Marantz HDAM / HDAM-SA2 technology
Number of Channels / Power Amps: 12
Power Output (Rated):
8 ohm, 1 kHz, 0.05% THD, 2ch drive: Normal / BTL = 200 W / 400 W
4 ohm, 1 kHz, 0.7% THD, 2ch drive: Normal = 400 W x 2
Maximum Dimensions (W × D × H): 17.4 × 17.4 × 7.5 in.
Weight: 39.7 lbs (18.0 kg)
What's in the Box:
Main unit
Quick start guide
AC cord
Amp control cable
Remote control cable
SP terminal wrench
Marantz AMP 20 Q&A:
What is the Marantz AMP 20 designed for?
AMP 20 is built for reference-level home theater systems that need high channel count and high power, delivering 12 channels of premium amplification in a single chassis.
How much power does AMP 20 deliver per channel?
In Normal mode, it delivers 200 W per channel (8Ω, 1 kHz, 0.05% THD, 2ch drive) and can reach 400 W per channel into 4Ω (1 kHz, 0.7% THD, 2ch drive).
What is BTL mode and why would I use it?
BTL (bridged) mode combines two amplifier channels into one higher-power output, delivering 400 W into 8Ω (1 kHz, 0.05% THD, 2ch drive) for speakers or zones that benefit from extra headroom.
Does AMP 20 support balanced XLR connections?
Yes. It provides balanced and unbalanced main amplifier inputs (12 channels total), selectable via a switch for clean integration with high-end preamps and processors.
Can AMP 20 be used in custom-install and rack-style systems?
Yes. It supports RS232 control, IR flasher input, Marantz remote bus, and DC trigger input/output (1 in / 1 out) for integration-friendly operation.
What speakers can AMP 20 safely drive?
It supports 4–16Ω speaker loads in Normal/Bi-Amp modes and 8–16Ω in BTL mode, helping ensure stable operation across a wide range of speaker designs.
What makes AMP 20 “reference-level” beyond wattage?
It combines custom-developed Class D amplification with Marantz HDAM/HDAM-SA2 technology, a copper-plated chassis, wide frequency response, and a high 110 dB signal-to-noise ratio for clean, controlled performance.
What comes in the box with AMP 20?
The package includes the main unit, quick start guide, AC cord, amp control cable, remote control cable, and an SP terminal wrench.
