SKU: 34185781220

330A Power Amplifier

Sale price$1980.00 Regular price$2200.00
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Description

330A Power AmplifierMOON 330A Power Amplifier Precision and Performance Redefined The MOON 330A Power Amplifier by SimAudio exemplifies a harmonious blend of formidable power and refined audio fidelity. Delivering 125 watts per channel into 8 ohms and 250 watts per channel into 4 ohms, this stereo amplifier is engineered to drive a wide range of loudspeakers with authority and precision. Its fully balanced differential circuitry and proprietary MOON Bipolar output

MOON 330A Power Amplifier – Precision and Performance Redefined

The MOON 330A Power Amplifier by SimAudio exemplifies a harmonious blend of formidable power and refined audio fidelity. Delivering 125 watts per channel into 8 ohms and 250 watts per channel into 4 ohms, this stereo 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 330A'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 5 watts, the MOON 330A 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 330A includes essential features such as 12V triggers and an RS-232 port, facilitating seamless integration into custom-install environments. When paired with the MOON 390 Network Player / 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 125 W per channel
Output Power at 4Ω 250 W per channel
Output Power - Bridged mono at 8Ω 400 W
Input Sensitivity 800mV RMS
Input Impedance 47,500Ω
Gain 31dB
Signal-to-Noise Ratio 100dB @ full power
Frequency Response (full range) 10Hz - 125kHz +0/-3dB
THD (20Hz - 20kHz @ 1 W) 0.02%
THD (20Hz - 20kHz @ 125 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 330A 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: 34185781220

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4.5 ★★★★★
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A
Arty
Carnegie, US
★★★★★ 4
Boys vest
Color: Black, Size: 8
The vest looks nice. It seems well made and looks high quality. The fabric is nice. The buttons seem very sturdy. The vest is lightweight and shouldn’t be too sweaty. It’s a nice versatile piece. Can be dressed up or down. The fit is a smidge awkward on my boys, but they still like it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 19, 2026
Q
QueenofAwkward
Boise, US
★★★★★ 5
Looks very nice and sizing is right
Color: Navy Blue, Size: 14, Color: Navy Blue, Size: 14
I ordered this for my 13-year-old who currently wears a size 12-14. He's closer to the 12, but has enough clothes in that size, so I ordered the 14 in navy blue. He chose the color, although it took him a while to decide. My kids so far have preferred not to go to school dances or dressier school functions, but I try to keep an outfit on hand in case they need it, and he does have to dress up a little for school band performances. He doesn't really have any kind of clothing preferences (yet), and is just as likely to look dressed up as he is to wear something completely wrinkled (but clean). This vest fits as expected. It is a bit large on him to the same degree that the other size 14 clothes he has are. He is pretty skinny, so while I think it would fit someone who is more average sized, I'm not sure how well it will do on huskier sizes. It has a nice buckle on the back as most men's vests like these have, so it can be adjusted in that sense. The navy color is a bit of a brighter shade than your average navy, but not outside of the normal range for navy. I like it. It’s hard to get the exact color in pictures. The fabric and construction both seem to be good quality. The fabric feels average compared to my husband's dress vests, better than the lower quality/cheaper ones and not quite as nice as the ones he spent more on. This boy's dress vest is currently being sold for approximately $20, which I think is great for a nice dress vest like this.
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Reviewed in the United States on February 27, 2026
C
C. Snyder
Birmingham, US
★★★★★ 5
"Navy Vest & Pocket Square Charm; Formal Polish for Perfect Pairing
Color: Navy Blue, Size: 8, Color: Navy Blue, Size: 8
This very charming boys navy blue vest pairs perfectly with the accompanied pocket square, adding formal charm to dockers or navy khakis. My boys look dapper in matching sets. A timeless style that elevates any outfit. Made with quality fabric that appears to resist wrinkles, with the pocket square folding neatly for that polished touch. Comfortable and event ready.
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Reviewed in the United States on April 14, 2026
S
sunflower
Carnegie, US
★★★★★ 5
Adorable boys vest! Dress up or down!
Color: Light Gray, Size: 5, Color: Light Gray, Size: 5
Super cute vest! Made of quality materials. The buttons on the front all work very well. My four year old can easily button and unbutton them himself. All 3 pockets in the front are functional cute little pockets. There are vertical line stitchings making this vest look just like dad's. The back is easily adjustable. I will stay I was nervous it was going to be too big for my almost 4 year old - I ordered the smallest size available, size 5 and it actually fits him perfectly. In fact, I could even have gotten him the size 6 and it would have fit so I recommend to size up. It's a breathable vest. The gray color goes with lots of other colors. It's an adorable vest. You can dress it up with a nice suit or dress down. It's adorable with a t shirt and jeans. The inside back is a nice silky material. This vest is very well made - its thick but breathable and a great value for the dollar. I highly recommend.
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Reviewed in the United States on March 6, 2026
S
Sweet_Gato
Lexington, US
★★★★★ 5
Perfect Fit and Amazing Quality – Highly Recommend!
Color: Black, Size: 12, Color: Black, Size: 12
I am absolutely thrilled with this boys’ formal vest! The size was spot on—it fit perfectly without being too tight or too loose, which can be hard to find for kids’ dress clothes. The material feels premium, soft yet structured, and it looks much more expensive than it actually is. I ordered it for a wedding where my son was the ring bearer, and it photographed beautifully. It gave him such a classy, well-dressed look while still allowing him to move comfortably through the day. The stitching and finish are top-notch, and the color stayed vibrant even after washing. It paired perfectly with a white shirt and dress pants we already had. I also appreciate how versatile it is—it’ll be great for Easter, family photos, or any other special occasion. Overall, I’m extremely happy with the quality, fit, and style of this vest. Definitely a 5-star purchase that I would buy again without hesitation!
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Reviewed in the United States on March 6, 2026

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