Desire to learn and share knowledge of science required as is 20 years of participation in forums (not all true).

I am glad that Aiyima is continuing to develop some solid state, clean, "no frills" units along with their tube and more steampunk looking options.The TPA3255 is a high-performance Class D power amplifier with Class D efficiency and true to high-end sound quality. DAC (discontinued), Audiolab 6000 CD transport and, for speakers, rotate the KEF LS50 Meta and the Lii F-15 full range driver in an open baffle (no crossover). These are SMPS and hence your dc output is actually coming from the mains but with very fast switching. The lack of top case holes might be a plus for some users as a) it makes it less prone to liquids or other dust entering the case and b) it makes it stackable. The output power ratings are quoted using a 48V/12A power supply (not available from Aiyima); multiplying volts by amps only gives 576W so these figures must be questionable and an instance of "missing watts".

The LPF adopts the United States ITW military non-inductive melaleuca inductance coupling capacitor, and the input coupling capacitor adopts ELNA R2A and Nichicon MUSE Goddess advanced audio new line capacitors, with a reasonable design, the output treble is clear and bright, the bass is powerful, and the elasticity is high. I held-off on writing a review until I had an opportunity to spend some time listening with this amp.Note: these measurements have not been independently confirmed yet but they are inline with the expectation based on previous results. AIYIMA A07 PRO vs Fosi Audio TB10D (89 USD vs 79 USD) – We have a similar shape and size, but A07 PRO has better features, a Bluetooth input with aptX HD, while TB10D has no Bluetooth inputs. With both EQ wheels turned at zenith, or at 12 o’clock, you get a very mid centric sound that has an audible roll off in both treble and bass, so it is designed to make you use those wheels, it is not only a feature, but a requirement. I've seen laptops with 3-pin power supplies too, and it does make me wonder why these amplifiers use 2-pin plugs.

Note: The use of audio electronic products is closely related to the size of the speaker and power supply. The mono capability would seem to me to be most useful to people with a medium sized listening space with medium to high efficiency speakers who want to use the 48v power supply option to get medium to loud volume levels. It's unclear whether this increase in bass was due to a minor discrepancy in the detents or if the original recording itself contained that extra bass, which the Aiyima A07 wasn't reproducing. Impressionant ce que ces petites boites arrivent à envoyer comme jus, même si on reste tout de même loin des 300 W annoncés. Strong Practicality: The solid appearance design is simple but powerful, easy to operate, and better suitable for your preamp or DAC.While I don't claim to be a seasoned audiophile and haven't had the opportunity to audition numerous other amplifiers, I can certainly provide a comparative analysis of these two models. This being said, compared to AMPs that have the same Class D design with the TPA3255D2 Class D AMP Chip, and NE5532 Dual OP-AMPs, the sound at default is similar, you need some kind of EQ to bring more bass and treble in the sound to make it all worth it.