The 3E Audio PFFB module is a high-performance Class D amplifier that can operate in stereo (BTL) or mono (PBTL) mode. It is based on the use of TPA3255 amplifier chips allowing it to develop an important power of 2x225W or 1x250W under 4Ω. A power that it provides while revealing a precise and dynamic restitution. It incorporates an advanced feedback design (Post Filter Feedback) and a proprietary high speed error correction system (PurePath™ Ultra-HD). This technology achieves a very low level of distortion across the entire frequency band and superior audio quality.

By combining Post Filter Feedback, an enhanced input stage and high quality components, the 3E Audio PFFB module achieves incredibly low noise and distortion for clear and transparent playback.