Tone controls are not centered however for flat response (you can see in the picture what I set them to). The water has excellent emissivity and will heat up until it boils into vapor, allowing me to accurately measure the temperature until it reaches above 100C or dried up. It’s a simple unit with a simple purpose, as a stereo power amp with a single RCA, and it does what it says on the tin.

Fosi Audio TB10D Amplifier Review | Page 20 | Audio Science Fosi Audio TB10D Amplifier Review | Page 20 | Audio Science

Please check that the AC power cord is securely connected to the power supply and to an AC power outlet. You’re going to need that extra power before putting it through the TB10D, to ensure the turntable is powered appropriately. If there's a weak spot, it may be in the amp's ability to reproduce a wide sound stage which was good but nothing outstanding.Most goods are not subject to import taxes when shipped from warehouses in the United States, the European Union, or Russia to their respective countries. Fosi tried some new things with the Fosi Audio V3, including ensuring there was a market for this version by trying a Kickstarter for the first time. Its amplification stage uses a TI TPA3255 chip, capable of developing a power of 2x300W under 4Ω with a high efficiency. The AudioQuest JitterBug is a classic example of this low-cost, high volume, questionable benefit sales model.

AIYIMA A07 TPA3255 vs Fosi Best budget mini class D amp? AIYIMA A07 TPA3255 vs Fosi

After some testing, I decided to switch to my Elac B6 Debut speakers, and once again, the TB10D amplifier delivered ample power with ease. The amp is backed up by 4 2200uF, 50V electrolytic filter capacitors and four large inductors to make up the LC output filter. The chip is covered by a large heatsink which should be perfectly adequate, and they even used thermal compound and height spacer washers to ensure proper thermal coupling between the surface of the chip and the underside of the heatsink. The soundstage is fairly good on both, but both have a high THD that will be audible at very high volumes. This is a bit lower than the AOSHIDA A7 but follows the same general shape with increasing output impedance above 2.The main speakers I connected to the Fosi Audio TB10D have been KLH Model Five, NHT C3, and Buchardt S400. Although the amplifier can output more power with a different PSU, this is one thing Fosi Audio should be clearer about. This is not as clean as the AOSHIDA which has a flatter and lower noise level (N -82dB) reflected in a better overall 2Vrms into 4Ω THD+N result of -82dB. I also wouldn’t want to push the amp to deliver its maximum power (at the onset of clipping) for a long time. The overall sonic signature of the Fosi Audio TB10D is very similar to that of the Fosi Audio BT30D, both of them have a really dynamic, punchy sound, with good instrument separation, and overall clarity.