YBA PASSION A650 - Desktop Stereo Power Amplifier 2x400W 4 Ohm

The Passion A650 by YBA is a high-performance stereo power amplifier designed to deliver musicality with authority. With 200W per channel into 8 Ohms and 400W into 4 Ohms, it offers ample headroom and dynamic control for demanding loudspeakers. Its balanced circuit design and absence of passive components in the signal path ensure pure, uncolored sound. The AMP650’s refined voltage amplification and robust output stage provide precision and depth across all genres.

Encased in a sleek brushed aluminum chassis, the AMP650 features a minimalist front panel with a signature oval display and no visible buttons. Around back, it offers balanced XLR and unbalanced RCA inputs, along with dual speaker outputs per channel for bi-wiring. Internally, suspended transformers and optimized circuit geometry reduce vibration and signal path length, enhancing sonic clarity.

Designed for audiophiles seeking power and finesse, the Passion AMP650 is ideal for pairing with YBA’s Passion PRE550A or other high-end preamps. Whether anchoring a two-channel setup or driving full-range speakers, it delivers immersive realism and emotional impact. The box includes the amplifier and power cable. The unit measures 430 x 397 x 178mm and weighs 25 kg.

The Passion Series AMP650, PRE550 MKII and CD430 MKII offer balanced XLR I/O using balanced stages for low‑noise, long‑cable transmission; for quiet home systems with short interconnections, their RCA paths are often preferred because the single‑ended implementation can deliver lower cross‑distortion and better impedance matching for a clearer, more natural sound.