3e Audio A7mono TPA3255 PBTL Next-gen HiFi Mono Amplifier with Enhanced PFFB Professional Amplifier (No Power Supply)

Price: $169.99
(as of Sep 27, 2025 23:45:19 UTC – Details)

Product description

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Customer Reviews

4.8 out of 5 stars 7

5.0 out of 5 stars 4

4.3 out of 5 stars 3

Price

$299.99$299.99
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$249.99$249.99

Power Supply Input
DC38V-48V/5A DC38V-52V/5A DC36-38V/5A

Amplifier chip
TPA3255 x 2 TPA3255 x 1 TPA3251 x 2

Signal to Noise Rate
126dB 126dB 125dB

Frequency Response
20Hz – 35KHz 20Hz – 35KHz 20Hz – 35KHz

Noise (A-wt)
<15uVrms <15uVrms <13uVrms

Output Power
250W x 2 @4Ω 140W x 2 @8Ω 480W x 1 @2Ω 260W x 1 @4Ω 150W x 1 @8Ω 150W x 2 @4Ω 80W x 2 @8Ω

Speaker Impedance
2Ω – 16Ω 2Ω – 16Ω 2Ω – 16Ω

Product Dimensions ‏ : ‎ 6.69 x 6.61 x 1.81 inches; 2.14 Pounds
Item model number ‏ : ‎ A7MONO-NO Power Adapter
Date First Available ‏ : ‎ June 10, 2025
Manufacturer ‏ : ‎ 3eAudio
ASIN ‏ : ‎ B0FCMY1M8C
Best Sellers Rank: #80,595 in Electronics (See Top 100 in Electronics) #501 in Audio Component Amplifiers
Customer Reviews: 5.0 5.0 out of 5 stars 4 ratings var dpAcrHasRegisteredArcLinkClickAction; P.when(‘A’, ‘ready’).execute(function(A) { if (dpAcrHasRegisteredArcLinkClickAction !== true) { dpAcrHasRegisteredArcLinkClickAction = true; A.declarative( ‘acrLink-click-metrics’, ‘click’, { “allowLinkDefault”: true }, function (event) { if (window.ue) { ue.count(“acrLinkClickCount”, (ue.count(“acrLinkClickCount”) || 0) + 1); } } ); } }); P.when(‘A’, ‘cf’).execute(function(A) { A.declarative(‘acrStarsLink-click-metrics’, ‘click’, { “allowLinkDefault” : true }, function(event){ if(window.ue) { ue.count(“acrStarsLinkWithPopoverClickCount”, (ue.count(“acrStarsLinkWithPopoverClickCount”) || 0) + 1); } }); });

Attention: This link does not include a power adapter
Exceptional Compatibility for Versatile Setups：A7Mono amplifier home audiohome audio component is a perfect match for passive bookshelf speakers, making it an ideal addition to your desktop home theater system. Its compatibility extends to most home audio bookshelf speaker systems available in the market, ensuring you can easily pair it with your existing or new speakers. It can deliver a wide and pure sound quality effect
Compact Design, Maximum Utility：A7Mono mini amplifier compact and space-saving body design makes it suitable for various scenarios. It can be easily set up and seamlessly integrated into your home environment
Sturdy Build and Smart Heat Dissipation：A7Mono HiFi Audio adopts a sturdy and durable design structure. In terms of heat dissipation, it combines side and bottom vents to effectively prevent dust from entering. While achieving efficient heat dissipation, it also extends the service life of the device, allowing you to use it with greater peace of mind and stability without having to worry about heat dissipation and device protection issues
High – End Components for Superior Sound:A7Mono HiFi stereo amplifier audio is equipped with the TPA3255 high-performance and low-distortion Class D amplifier chip from Texas Instruments (TI), In addition, it also uses high-quality audio components, including Japanese capacitors, 2 channel amp, ELNA capacitors, German WIMA capacitors, as well as an IT power management chip
The adoption of post-filter feedback design can effectively reduce the noise interference of the circuit in the high-frequency band, while improving the reduction degree of low-frequency signals
Outstanding Performance Parameters:The A7Mono audio control amplifier stereo receiver, which uses high-end audio components, has reached the best state of a HiFi-class Class D amplifier in terms of performance parameters. Its signal-to-noise ratio is as high as 126dB, providing clear and pure sound quality with extremely low distortion
Worry – Free Brand Services and Convenient Package:We provide worry – free brand services, ensuring you have no concerns after the purchase. The product package comes with a DC 38V – 52V/5A or 9A power adapter, allowing you to use it right out of the box. It’s convenient and quick to set up. You can start enjoying enhanced audio quality immediately without the hassle of finding a compatible power source, and our brand support is there to assist you if any issues arise