3e Audio

3e Audio A7 — reference-tier TPA3255 stereo amplifier with Enhanced PFFB (Post-Filter Feedback) topology delivering 250 W × 2 PBTL @ 4 ohm and a 48V 5A power supply included in-box. PFFB circuit dramatically lowers distortion at rated power vs. standard TPA3255 implementations, closing the gap on Class-AB refinement while keeping Class-D efficiency. Balanced input + speaker binding posts. The measurement-first Chi-Fi flagship in the $300 amp segment. $299.99 on Amazon US with Prime shipping.