Rebec ES4S
The Rebec ES4S is a flagship 4-channel Class AB amplifier from the Rebec Legend Series – the highest tier of Rebec amplifier development. It combines multi-channel flexibility with the refinement and musical performance expected from a high-end platform, delivering substantial power reserves while focusing on tonal accuracy, dynamic stability and the faithful reproduction of musical information.
Key Features
- Legend Series Flagship: One of the highest-level amplifiers in the Rebec lineup, sharing the same substantial chassis as the ES2S
- Class AB Design: Power transistor output stage for stable amplification and minimal distortion
- High Power Output: 150W x 4 RMS at 4 Ohm and 300W x 4 RMS at 2 Ohm
- Bridge Capability: 450W x 2 bridged at 4 Ohm or 600W x 2 bridged at 2 Ohm
- Wide Frequency Response: 20 Hz to 35 kHz
- Low Noise and Distortion: Signal-to-noise ratio of 99 dB and THD+N of 0.01% at 1 kHz
- Natural Timbre: Exquisite, natural tonality with a rich, delicate presentation and composure during large dynamic transitions
Technical Specifications
- Amplifier Circuit: Class AB
- Channels: 4
- RMS Power @ 4 Ohm: 150W x 4
- RMS Power @ 2 Ohm: 300W x 4
- Peak Power: 300W x 4 @ 4 Ohm / 600W x 4 @ 2 Ohm
- Bridge Power: 450W x 2 @ 4 Ohm / 600W x 2 @ 2 Ohm
- Input: Low level 0.63 – 11V (no high level input)
- Frequency Response: 20 Hz – 35 kHz
- Signal to Noise Ratio: 99 dB
- THD+N: 0.01% (1 kHz)
- Operating Voltage: 10 – 16V
- Quiescent Current: 1.2A
- Fuse: 3 x 25A
- Dimensions: 421 x 240 x 63 mm (16.57″ x 9.45″ x 2.48″)
Flagship four-channel design, natural timbre and stable dynamic performance – the Rebec ES4S is built for listeners who demand a true high-end Class AB amplifier.
















