[{"id":641811873951,"handle":"moon-certified-reserve","title":"MOON Certified Reserve","updated_at":"2026-06-27T05:07:04-06:00","body_html":"\u003cp dir=\"ltr\" style=\"text-align: center;\"\u003e\u003cstrong\u003eListenUp is the only place to find MOON Certified Reserve\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cspan\u003eFully tested, refurbished, and certified in Canada by MOON technicians.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cspan\u003eIncludes new packaging and complete accessory packs\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cspan\u003eTechnician sign-off certification included\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cspan\u003eBacked by a 5-year manufacturer warranty directly by Simaudio\u003c\/span\u003e\u003c\/p\u003e","published_at":"2026-06-17T09:28:13-06:00","sort_order":"most-relevant","template_suffix":"","disjunctive":false,"rules":[{"column":"vendor","relation":"equals","condition":"MOON"},{"column":"title","relation":"contains","condition":"Certified"}],"published_scope":"global"},{"id":302044119199,"handle":"moon-power-amps","title":"Moon Power Amps","updated_at":"2026-06-16T16:11:50-06:00","body_html":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cb id=\"docs-internal-guid-407d7c88-7fff-eeb3-c849-1210f95591e1\"\u003e\u003ca href=\"https:\/\/listenup.com\/pages\/moon\"\u003e\u003cspan\u003eMOON\u003c\/span\u003e\u003c\/a\u003e\u003cspan\u003e,\u003c\/span\u003e\u003c\/b\u003e an exceptional range of sound systems and emotions. MOON power amps and the MOON North Collection are on display for auditions at four ListenUp locations. 877-744-1179 for MOON expertise. \u003cb id=\"docs-internal-guid-407d7c88-7fff-eeb3-c849-1210f95591e1\"\u003e\u003ca href=\"https:\/\/listenup.com\/pages\/reach-for-the-moon-trade-up-program\"\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003eTrade-up to MOON\u003c\/span\u003e\u003c\/a\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003c!----\u003e","published_at":"2024-07-18T16:33:20-06:00","sort_order":"best-selling","template_suffix":"","disjunctive":false,"rules":[{"column":"vendor","relation":"equals","condition":"MOON"},{"column":"vendor","relation":"equals","condition":"Moon"},{"column":"title","relation":"contains","condition":"Power"},{"column":"title","relation":"not_contains","condition":"open box"}],"published_scope":"global","image":{"created_at":"2024-07-18T16:33:19-06:00","alt":"MOON North Collection 861 Power Amplifier","width":1800,"height":1800,"src":"\/\/listenup.com\/cdn\/shop\/collections\/861_front-2.png?v=1721342000"}},{"id":292405346463,"handle":"new-to-listenup","updated_at":"2026-07-05T16:07:10-06:00","published_at":"2023-02-16T15:19:34-07:00","sort_order":"manual","template_suffix":"","published_scope":"global","title":"New to ListenUp","body_html":""},{"id":301151355039,"handle":"welcome10","updated_at":"2026-07-06T13:03:55-06:00","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 MOON 860A v2 is a high-end dual-mono power amplifier built for audiophile systems that demand transparency, power, and control. It delivers 225W per channel into 8 ohms, 450W per channel into 4 ohms, and 750W in monaural mode for serious loudspeaker drive. With balanced XLR and RCA inputs, switchable AC/DC coupling, RS-232, and 12V triggers, it offers flexible integration into premium stereo setups. Proprietary MOON engineering, Class A output up to 5 watts, and stable load handling make it a compelling reference-grade power amp for demanding music lovers.
Get the Details
Features & Specs
Balanced differential dual-mono architecture
Each channel operates independently, helping preserve channel separation, low noise, and the kind of control expected from a serious audiophile power amplifier.
225W per channel into 8 ohms
This output level gives the 860A v2 the authority needed for high-performance stereo systems while maintaining composure and detail.
450W per channel into 4 ohms
The higher 4-ohm rating supports stronger current delivery for more demanding loudspeakers and dynamic musical passages.
750W monaural mode
Rear-panel mono switching lets each amplifier be bridged for substantially higher output, making a pair of 860A v2 units a powerful mono-block solution.
Flexible analog input and coupling options
Balanced XLR and single-ended RCA inputs, plus BAL/UNBAL and AC/DC switches, make it easier to optimize system matching with modern or legacy preamplifiers.
Automation-ready control features
RS-232 and 12V trigger support allow the amplifier to fit more cleanly into advanced hi-fi racks and custom-install environments.
Balanced differential dual-mono architecture
Each channel operates independently, helping preserve channel separation, low noise, and the kind of control expected from a serious audiophile power amplifier.
225W per channel into 8 ohms
This output level gives the 860A v2 the authority needed for high-performance stereo systems while maintaining composure and detail.
450W per channel into 4 ohms
The higher 4-ohm rating supports stronger current delivery for more demanding loudspeakers and dynamic musical passages.
750W monaural mode
Rear-panel mono switching lets each amplifier be bridged for substantially higher output, making a pair of 860A v2 units a powerful mono-block solution.
Flexible analog input and coupling options
Balanced XLR and single-ended RCA inputs, plus BAL/UNBAL and AC/DC switches, make it easier to optimize system matching with modern or legacy preamplifiers.
Automation-ready control features
RS-232 and 12V trigger support allow the amplifier to fit more cleanly into advanced hi-fi racks and custom-install environments.
Expert Insight
The 860A v2s do not sound like amplifiers hard at work. Ease, flow, and beauty are their bottom line. They can rock, groove, and serenade with the best. Their sound feels complete and of one piece; it's a sound that honors composers, artists, and engineers to the fullest.
Jason Victor Serinus
stereophile
Details
MOON 860A v2 Power Amplifier
The MOON 860A v2 Power Amplifier is a high-end balanced differential dual-mono amplifier designed for listeners who want transparency, control, and scale from a serious two-channel system. It draws on trickle-down technology from MOON’s flagship 888 Power Amplifier and combines proprietary Lynx zero-global-feedback architecture, MOON bipolar output transistors, a short signal path, and an oversized power supply to produce 225 watts per channel into 8 ohms, 450 watts per channel into 4 ohms, or 750 watts in monaural mode. Class A output up to 5 watts, stability into any known speaker impedance, and a high damping factor help it deliver clean transients, strong bass authority, and refined timbre. For setup flexibility, it offers balanced XLR and single-ended RCA inputs, switchable AC/DC coupling, stereo/mono switching, RS-232 control, and 12V trigger support for advanced hi-fi and custom-install systems.
The MOON Certified Reserve Standard
Every MOON Certified product meets a strict manufacturer standard:
Fully tested, refurbished, and certified by MOON technicians
Includes new packaging and complete accessory packs
Technician sign-off certification included
Backed by a 5-year manufacturer warranty
What It's Good At:
Driving demanding loudspeakers with confidence thanks to its true dual-mono layout, high damping factor, and stable output into any known speaker impedance.
Delivering both finesse and force with Class A output up to 5 watts and powerful output ratings for stereo or bridged-mono operation.
Pairing easily with a wide range of preamplifiers using balanced XLR or single-ended RCA inputs plus switchable AC/DC coupling.
Supporting serious system integration with RS-232, 12V trigger input/output, and rear-panel stereo/mono switching.
Preserving speed, bass grip, and tonal accuracy through proprietary MOON bipolar output transistors, a short signal path, and dual 1.2 kVA transformers.
Fitting premium listening rooms with substantial build quality and multiple finish options, including Black, 2-Tone, and Silver depending on location.
MOON 860A v2 Full Specifications:
Product type: balanced differential dual-mono power amplifier
Number of channels/configuration: 2-channel dual-mono; balanced configuration
Operating modes: stereo or monaural via rear-panel switch; a second identical unit is required for a stereo system in monaural operation
Power output at 8Ω: 225 W per channel
Power output at 4Ω: 450 W per channel
Power output in monaural mode at 8Ω: 750 W
Class A output: up to 5 watts
Inputs: balanced XLR and unbalanced RCA, one or the other per channel; do not connect both simultaneously
Input selection and matching: BAL/UNBAL input switch plus AC/DC coupling switch; DC is recommended for most preamplifiers, while AC is recommended for many older or tube preamplifiers
Speaker outputs: 1 pair of binding posts per channel
Control connections: RS-232 port; 12V trigger input/output (1 in / 1 out)
Output stability: stable into any known speaker impedance
Gain: 31 dB
Input sensitivity: 1.2V
Input impedance: 47,500Ω
Signal-to-noise ratio: 110 dB at full power
Frequency response (published): datasheet lists 10Hz–100kHz, +0/-3 dB; manual lists 10Hz–55kHz, +0/-3.0 dB
Crosstalk at 1kHz: -110 dB
THD (20Hz–20kHz @ 1W): 0.005%
THD (20Hz–20kHz @ 200W): 0.03%
Intermodulation distortion: 0.006%
Power supply transformers: 2 x 1.2 kVA
Power supply capacitance: 240,000 µF
Shipping weight: 90 lb / 40 kg
Dimensions (W x H x D): 18.75 x 7.5 x 17.5 in; metric dimensions are published as 47.6 x 19.2 x 44.5 cm in the datasheet and 47.6 x 19.1 x 44.5 cm in the manual
Fuse replacement: 120V version uses a 10A fast blow (3AG); 230V version uses a 5A fast blow (3AG)
Available finishes: Black, 2-Tone, and Silver; finish availability depends on location
Included in the box: AC power cable and warranty/product registration information for USA and Canada
MOON 860A v2 Q&A:
Is the MOON 860A v2 a stereo amplifier or a mono amplifier?
It is a dual-mono stereo power amplifier by default, and it can also be switched to monaural mode from the rear panel. For a full stereo system in monaural operation, two identical 860A v2 amplifiers are required.
How much power does the 860A v2 deliver?
It is rated at 225 watts per channel into 8 ohms, 450 watts per channel into 4 ohms, and 750 watts in monaural mode at 8 ohms.
What inputs does it offer?
Each channel provides both a balanced XLR input and a single-ended RCA input, with a BAL/UNBAL selector to choose the active connection. Both inputs should not be connected at the same time.
What does the AC/DC coupling switch do?
The coupling switch helps match the amplifier to the connected preamplifier. DC is recommended for most preamplifiers, including MOON models, while AC is suggested for many older or tube preamplifiers and can help if the protection circuit detects DC on the input.
Can the 860A v2 be used in a custom-install or automated system?
Yes. It includes RS-232 connectivity for control and firmware updates, plus 12V trigger input and output for coordinated power control with compatible components.
Will it work with difficult speaker loads?
It is designed to remain stable into any known speaker impedance, and its dual-mono layout plus high damping factor are intended to improve speaker control and dynamics.
Does it include built-in protection?
Yes. The 860A v2 uses a self-diagnostic system that can shut the amplifier down if it detects DC at the input or overheating, with front-panel LED blink codes to indicate the issue.
Does it need break-in time or continuous power for best performance?
The manual says performance continues to improve during the first 300 hours of listening, and MOON recommends leaving the amplifier powered up to maintain optimal performance.
The MOON 860A v2 is a high-end dual-mono power amplifier built for audiophile systems that demand transparency, power, and control. It delivers 225W per channel into 8 ohms, 450W per channel into 4 ohms, and 750W in monaural mode for serious loudspeaker drive. With balanced XLR and RCA inputs, switchable AC/DC coupling, RS-232, and 12V triggers, it offers flexible integration into premium stereo setups. Proprietary MOON engineering, Class A output up to 5 watts, and stable load handling make it a compelling reference-grade power amp for demanding music lovers.
Get the Details
Features & Specs
Features & Specs
Balanced differential dual-mono architecture
Each channel operates independently, helping preserve channel separation, low noise, and the kind of control expected from a serious audiophile power amplifier.
225W per channel into 8 ohms
This output level gives the 860A v2 the authority needed for high-performance stereo systems while maintaining composure and detail.
450W per channel into 4 ohms
The higher 4-ohm rating supports stronger current delivery for more demanding loudspeakers and dynamic musical passages.
750W monaural mode
Rear-panel mono switching lets each amplifier be bridged for substantially higher output, making a pair of 860A v2 units a powerful mono-block solution.
Flexible analog input and coupling options
Balanced XLR and single-ended RCA inputs, plus BAL/UNBAL and AC/DC switches, make it easier to optimize system matching with modern or legacy preamplifiers.
Automation-ready control features
RS-232 and 12V trigger support allow the amplifier to fit more cleanly into advanced hi-fi racks and custom-install environments.
Balanced differential dual-mono architecture
Each channel operates independently, helping preserve channel separation, low noise, and the kind of control expected from a serious audiophile power amplifier.
225W per channel into 8 ohms
This output level gives the 860A v2 the authority needed for high-performance stereo systems while maintaining composure and detail.
450W per channel into 4 ohms
The higher 4-ohm rating supports stronger current delivery for more demanding loudspeakers and dynamic musical passages.
750W monaural mode
Rear-panel mono switching lets each amplifier be bridged for substantially higher output, making a pair of 860A v2 units a powerful mono-block solution.
Flexible analog input and coupling options
Balanced XLR and single-ended RCA inputs, plus BAL/UNBAL and AC/DC switches, make it easier to optimize system matching with modern or legacy preamplifiers.
Automation-ready control features
RS-232 and 12V trigger support allow the amplifier to fit more cleanly into advanced hi-fi racks and custom-install environments.
Expert Insight
Expert Insight
The 860A v2s do not sound like amplifiers hard at work. Ease, flow, and beauty are their bottom line. They can rock, groove, and serenade with the best. Their sound feels complete and of one piece; it's a sound that honors composers, artists, and engineers to the fullest.
Jason Victor Serinus
stereophile
Details
Details
MOON 860A v2 Power Amplifier
The MOON 860A v2 Power Amplifier is a high-end balanced differential dual-mono amplifier designed for listeners who want transparency, control, and scale from a serious two-channel system. It draws on trickle-down technology from MOON’s flagship 888 Power Amplifier and combines proprietary Lynx zero-global-feedback architecture, MOON bipolar output transistors, a short signal path, and an oversized power supply to produce 225 watts per channel into 8 ohms, 450 watts per channel into 4 ohms, or 750 watts in monaural mode. Class A output up to 5 watts, stability into any known speaker impedance, and a high damping factor help it deliver clean transients, strong bass authority, and refined timbre. For setup flexibility, it offers balanced XLR and single-ended RCA inputs, switchable AC/DC coupling, stereo/mono switching, RS-232 control, and 12V trigger support for advanced hi-fi and custom-install systems.
The MOON Certified Reserve Standard
Every MOON Certified product meets a strict manufacturer standard:
Fully tested, refurbished, and certified by MOON technicians
Includes new packaging and complete accessory packs
Technician sign-off certification included
Backed by a 5-year manufacturer warranty
What It's Good At:
Driving demanding loudspeakers with confidence thanks to its true dual-mono layout, high damping factor, and stable output into any known speaker impedance.
Delivering both finesse and force with Class A output up to 5 watts and powerful output ratings for stereo or bridged-mono operation.
Pairing easily with a wide range of preamplifiers using balanced XLR or single-ended RCA inputs plus switchable AC/DC coupling.
Supporting serious system integration with RS-232, 12V trigger input/output, and rear-panel stereo/mono switching.
Preserving speed, bass grip, and tonal accuracy through proprietary MOON bipolar output transistors, a short signal path, and dual 1.2 kVA transformers.
Fitting premium listening rooms with substantial build quality and multiple finish options, including Black, 2-Tone, and Silver depending on location.
MOON 860A v2 Full Specifications:
Product type: balanced differential dual-mono power amplifier
Number of channels/configuration: 2-channel dual-mono; balanced configuration
Operating modes: stereo or monaural via rear-panel switch; a second identical unit is required for a stereo system in monaural operation
Power output at 8Ω: 225 W per channel
Power output at 4Ω: 450 W per channel
Power output in monaural mode at 8Ω: 750 W
Class A output: up to 5 watts
Inputs: balanced XLR and unbalanced RCA, one or the other per channel; do not connect both simultaneously
Input selection and matching: BAL/UNBAL input switch plus AC/DC coupling switch; DC is recommended for most preamplifiers, while AC is recommended for many older or tube preamplifiers
Speaker outputs: 1 pair of binding posts per channel
Control connections: RS-232 port; 12V trigger input/output (1 in / 1 out)
Output stability: stable into any known speaker impedance
Gain: 31 dB
Input sensitivity: 1.2V
Input impedance: 47,500Ω
Signal-to-noise ratio: 110 dB at full power
Frequency response (published): datasheet lists 10Hz–100kHz, +0/-3 dB; manual lists 10Hz–55kHz, +0/-3.0 dB
Crosstalk at 1kHz: -110 dB
THD (20Hz–20kHz @ 1W): 0.005%
THD (20Hz–20kHz @ 200W): 0.03%
Intermodulation distortion: 0.006%
Power supply transformers: 2 x 1.2 kVA
Power supply capacitance: 240,000 µF
Shipping weight: 90 lb / 40 kg
Dimensions (W x H x D): 18.75 x 7.5 x 17.5 in; metric dimensions are published as 47.6 x 19.2 x 44.5 cm in the datasheet and 47.6 x 19.1 x 44.5 cm in the manual
Fuse replacement: 120V version uses a 10A fast blow (3AG); 230V version uses a 5A fast blow (3AG)
Available finishes: Black, 2-Tone, and Silver; finish availability depends on location
Included in the box: AC power cable and warranty/product registration information for USA and Canada
MOON 860A v2 Q&A:
Is the MOON 860A v2 a stereo amplifier or a mono amplifier?
It is a dual-mono stereo power amplifier by default, and it can also be switched to monaural mode from the rear panel. For a full stereo system in monaural operation, two identical 860A v2 amplifiers are required.
How much power does the 860A v2 deliver?
It is rated at 225 watts per channel into 8 ohms, 450 watts per channel into 4 ohms, and 750 watts in monaural mode at 8 ohms.
What inputs does it offer?
Each channel provides both a balanced XLR input and a single-ended RCA input, with a BAL/UNBAL selector to choose the active connection. Both inputs should not be connected at the same time.
What does the AC/DC coupling switch do?
The coupling switch helps match the amplifier to the connected preamplifier. DC is recommended for most preamplifiers, including MOON models, while AC is suggested for many older or tube preamplifiers and can help if the protection circuit detects DC on the input.
Can the 860A v2 be used in a custom-install or automated system?
Yes. It includes RS-232 connectivity for control and firmware updates, plus 12V trigger input and output for coordinated power control with compatible components.
Will it work with difficult speaker loads?
It is designed to remain stable into any known speaker impedance, and its dual-mono layout plus high damping factor are intended to improve speaker control and dynamics.
Does it include built-in protection?
Yes. The 860A v2 uses a self-diagnostic system that can shut the amplifier down if it detects DC at the input or overheating, with front-panel LED blink codes to indicate the issue.
Does it need break-in time or continuous power for best performance?
The manual says performance continues to improve during the first 300 hours of listening, and MOON recommends leaving the amplifier powered up to maintain optimal performance.
