AIYIMA A07 TPA3255 Stereo Power Amplifier
- TI TPA3255 Class D chip
- 300W x2 with a 48V/10A supply
- DC 32V 5A adapter included
- 2-8 ohm passive speakers
- 3.5mm pre-out, volume controlled
- NE5532 op-amps, swappable
- 6.06 x 3.94 x 1.57 inches, metal case
- 2-year warranty
Last refreshed Jun 20, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A powerful mini amp for desktop and bookshelf speakers, with room to tinker through op-amp swaps and supply upgrades. Full rated power needs a larger supply than the one included, and there is no wireless.
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ASIN: B08CJZGT6HModel: A07Category: Stereo Amplifiers
Overview
Driving passive bookshelf speakers on a desk is the job of the AIYIMA amp, a compact Class D stereo amplifier built on a TI chip with swappable op-amps. A pre-out passes the signal to a powered subwoofer, and a bigger power supply raises output.
The TI chip delivers strong, clean power in a tiny metal box, and the pre-out makes adding a subwoofer easy. The supplied adapter does not unlock the headline output, so plan on an upgrade for demanding speakers.
Who it's for
Hobbyists and desktop listeners get a compact, strong amplifier that rewards upgrades. Listeners wanting streaming built in should choose an amp with wireless inputs.
Pros and cons
- Strong TI Class D chip
- Pre-out for a subwoofer
- Compact metal housing
- Full power needs a bigger supply
- No Wi-Fi or Bluetooth listed
- Input options not detailed
Performance notes
The Class D chip switches at high speed with integrated feedback and error correction, giving high power with low heat and distortion. Output depends on supply voltage, so the included adapter delivers less than the maximum rating and a higher voltage supply raises it. The op-amp stage shapes the tone and can be swapped for other models.
Specifications
| Brand | Aiyima |
|---|---|
| Model | A07 |
| Dimensions & fit | |
| Item weight | 1050 g |
| Item dimensions | 6.06 x 3.94 x 1.57 inches |
| Capacity & performance | |
| Output Power | 300W x2 with 48V/10A supply |
| Maximum Output Power | 600W |
| Outputs | Passive speaker outputs, 3.5mm pre-out |
| Power & efficiency | |
| Supply voltage | 24-48V DC |
| Included power adapter | DC 32V 5A |
| Included components | |
| Components | ELNA and WIMA capacitors, 63V filter capacitors |
| Warranty & support | |
| Warranty Description | 2 year manufacturer |
| Other details | |
| Impedance | 2-8 ohms |
| Wireless Technology | None |
| Number of Channels | 2 |
| Amplifier chip | TI TPA3255 Class D |
| Op amps | NE5532 dual, replaceable |
Frequently asked questions
Can I connect a subwoofer to the AIYIMA A07?
Yes. The 3.5mm pre-out is full range and volume controlled, feeding a powered subwoofer or other active device.
What speakers does the AIYIMA A07 drive?
Passive speakers rated 2-8 ohms.
Does the AIYIMA A07 reach 300W x2 with the included adapter?
No. The included DC 32V 5A adapter works, but the maximum 300W x2 output needs an upgraded supply such as 48V/10A.