SKU: 44747216061

MOON 400M Power Amplifier

Sale price$2070.00 Regular price$2300.00
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Description

MOON 400M Power AmplifierMOON 400M Power Amplifier Precision and Power Redefined The MOON 400M Power Amplifier by SimAudio exemplifies a harmonious blend of formidable power and refined audio fidelity. Delivering 400 watts into 8 ohms and 650 watts into 4 ohms, this monoblock amplifier is engineered to drive a wide range of loudspeakers with authority and precision. Its fully balanced differential circuitry and proprietary MOON Bipolar output transistors ensure accurate sonic

MOON 400M Power Amplifier – Precision and Power Redefined

The MOON 400M Power Amplifier by SimAudio exemplifies a harmonious blend of formidable power and refined audio fidelity. Delivering 400 watts into 8 ohms and 650 watts into 4 ohms, this monoblock amplifier is engineered to drive a wide range of loudspeakers with authority and precision. Its fully balanced differential circuitry and proprietary MOON Bipolar output transistors ensure accurate sonic reproduction, providing listeners with an immersive and lifelike musical experience.

Exceptional Power and Control

The MOON 400M's robust power output is complemented by an oversized power supply featuring a custom-designed toroidal transformer. This design ensures consistent and reliable performance, even during demanding musical passages. With a high damping factor, the amplifier offers superior musical dynamics, improved signal speed, and refined timbre accuracy, allowing for precise control over speaker drivers and delivering tight, articulate bass response.

Refined Audio Performance

Operating in "Class A" mode for the first 10 watts, the MOON 400M achieves greater efficiency and minimizes distortion at lower listening levels. This feature, combined with the use of high-quality electronic components, results in a sound signature that is both detailed and musically engaging. Listeners can expect a top-end that delivers finesse and detail, challenging perceptions of reality versus recorded music.

Seamless Integration and Versatility

Designed with the discerning audiophile in mind, the MOON 400M includes essential features such as 12V triggers and an RS-232 port, facilitating seamless integration into custom-install environments. When paired with the MOON 350P Preamplifier, the combination offers an unparalleled level of refinement, making it an ultimate choice for those who appreciate high-level sound reproduction.

Technical Specifications

Output Power at 8Ω 400 W
Output Power at 4Ω 650 W
Input Sensitivity 800mV RMS
Input Impedance 47,500Ω
Gain 36dB
Signal-to-Noise Ratio 106dB @ full power
Frequency Response (full range) 10Hz - 125kHz +0/-3dB
THD (20Hz - 20kHz @ 1 W) 0.02%
THD (20Hz - 20kHz @ 400 W) 0.05%
Intermodulation Distortion 0.02%
Dimensions (W x H x D) 16.9 x 3.5 x 14.0 in (42.9 x 8.9 x 35.6 cm)
Shipping Weight 33 lb (15 kg)

The MOON 400M Power Amplifier stands as a testament to SimAudio's dedication to excellence in audio engineering. Its combination of power, precision, and refined sound quality makes it a compelling choice for audiophiles seeking to elevate their listening experience.

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: 44747216061

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Caroline
Omaha, US
★★★★★ 5
Finally!
Size: 2.5 Fl Oz (Pack of 1)
I have been looking for a sunscreen that does not breaks me out or irritate my eyes and this was perfect. I wash my face in the morning and I put this sunscreen on. I don't need to use moisturizer since this is enough. It does leave my skin glowy which I like but not greasy. I notice even my dark spots are fading but because I do use this everyday. My skin is tan and it does not leave a white cast. I love it. If you have acne prone skin, oily and sensitive give this a try.
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Reviewed in the United States on May 26, 2026
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LylaStylus
Pawtucket, US
★★★★★ 5
Finally! An SPF Hubby will wear!
Size: 2.5 Fl Oz (Pack of 1)
I've bought my husband at least a dozen SPFs--everything from drugstore to premium brands--and he won't wear any of them. He's 64 years old with oily, extremely sensitive skin (rosacea and dermatitis), and a tendency to sweat a lot in the summer heat, as he's very active. As for SPF, he hates the white cast, how heavy it feels on his skin, and how his eyes burn when he sweats and the SPF gets in them. But I keep trying. Since Eucerin was the only SPF I was able to tolerate after radiation, I tried this one for him. It's the only one he's liked. There's some white cast initially but it settles quickly. He says the lotion doesn't feel heavy, hasn't caused any irritation or breakouts, and doesn't bother his eyes either. He actually wears this one!!! I'm thrilled! Thank you, Eucerin!
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Reviewed in the United States on May 23, 2026
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Rocio
Fort Morgan, US
★★★★★ 5
Oily skin
Size: 2.5 Fl Oz (Pack of 1)
My skin is oily so sometimes I try different sunscreen and my skin doesn’t approve . This one is my favorite ever
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Reviewed in the United States on May 3, 2026
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Lacy
Dallas, US
★★★★★ 5
Go-To for Reef-Safe & Light-Weight Sunscreen
Style: SPF 50 Roll On, Size: 3 Fl Oz (Pack of 1)
Favorite sunblock to travel with. Appreciate the simplicity of it, and the fact that it rolls on and rubs in smooth. Of course the iconic scent is also a plus.
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Reviewed in the United States on May 18, 2026
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Jenny J
Lake Worth, US
★★★★★ 5
Great choice
Style: SPF 50 Roll On, Size: 3 Fl Oz (Pack of 1)
After I suffered a second-degree burn from steam, I was told by my doctor that I would have to keep my new fresh skin sun-blocked for up to a year to avoid any scarring or hyper pigmentation. This has been a great selection as it is a roll-on, Which helps a lot with preventing messes that can happen with traditional sunblock bottles. I also like that it is easy to travel with, and the fact that it is zinc based.
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Reviewed in the United States on August 26, 2025

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