3e Audio A7 Next-gen HiFi Stereo Amplifier | TPA3255 Chip
3e Audio A7 Next-gen HiFi Stereo Amplifier | TPA3255 Chip 2x250W PBTL with Enhanced PFFB | 48V5A Power Supply for Home Theater Bookshelf Passive Speakers
From the brand
3e Audio + ALSOZONE
"Guarding the Authenticity of Sound" is the original aspiration of 3e Audio + ALSOZONE. In the philosophy of 3e Audio + ALSOZONE, a high-quality power amplifier is never a cold piece of machinery, but rather a "Guardian of Sound" — we refine our products with triple craftsmanship, and within the closed loop of sound creation and end-user presentation, we preserve the most authentic form for every segment of sound.
Next-Gen PFFB Technology & Premium TPA3255 Chip for Studio-Grade Sound Experience audiophile-level performance with dual TI TPA3255 chips in PBTL configuration. Our advanced Post-Filter Feedback (PFFB) technology delivers 0.0004% THD, 104dB SINAD (at 5W), and 125dB SNR—minimizing distortion and ensuring consistent clarity across all speaker loads. Push 125W@8Ω or 250W@4Ω per channel for powerful, dynamic sound that brings music, movies, and podcasts to life with deep bass and precise detail
Pure Analog Signal Path & Flexible Input Options Enjoy uncompromised sound with direct analog input (no ADC conversion)—preserving the natural warmth of your audio source. Switch to volume bypass mode to eliminate signal interference, creating a pure chain from DAC to speakers. Supports XLR/¼" TRS balanced and RCA single-ended inputs (with gain control), plus auto power on/off and signal sensing for energy efficiency—perfect for home theaters, bookshelf setups, or desktop systems
User-Customizable Design for Personalized Sound Tailor your listening experience with swappable op-amps (stock OPA1656/OPA1612). Compatible with DIP8 dual discrete op-amps like Sparkos SS3602, MUSES02, OPA2604, and Burson V5i/V6/V7, it lets you fine-tune sound signature to match your speakers and preferences. The user-centric design adds flexibility for HiFi enthusiasts and casual listeners alike
High-End Components & 6-Layer PCB for Maximum Performance Built with audio-grade capacitors, flat-coil inductors, low-noise op-amps, and TI power management ICs—every part is selected for superior sound and reliability. The 6-layer PCB design reduces interference and optimizes signal flow, ensuring the amplifier maintains peak performance even during extended high-power use
Efficient Full-Body Heat Dissipation for Stable Operation Stay cool under pressure with a full-body heat dissipation system. The TPA3255 chips are mounted on a large heatsink integrated with the chassis, while bottom and dual-side ventilation holes boost airflow. This design prevents overheating, guaranteeing stable, distortion-free output whether you’re cranking up the volume for a party or enjoying a long listening session
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