REF500S

REF500S Stereo Amplifier Features
The Bel Canto Impedance Optimized Input Stage is a balanced high Common Mode Rejection, low output impedance driver that is critical to the amplifier’s performance, ensuring that the refined dynamic qualities of the recording are preserved.

WBT NextGen Speaker Connectors
The WBT NextGen connectors provide the best possible connection from the amplifier to the speaker cables. We choose them because they impart minimal sonic signature to the sound, remaining open and grain-free up throughout the audio frequency band.

Specification

Maximum Power Output: 500W 4 ohms, 250W 8 ohms per channel
Power Output 1% THD: 400W 4 ohms, 200W 8 ohms per channel
Minimum Load: 2 ohms per channel
Peak Output Current: 35 amperes per channel
Frequency Response: +/-3 dB 1.5Hz-70KHz, all loads
THD+N: 0.003% 1W, 1KHz, 4 ohms
IMD (CCIF): 0.0003%, 1W, 14:15KHz, 4 ohms
Output noise: 35uVRMS A-weighted 10Hz-20KHz
Voltage gain: 27dB (single ended or balanced input)
Damping factor: >1000
Output Impedance at 100Hz: <8 milliohms
Dynamic Range: 121dB
Input Voltage for Max Output: 2Vrms
Input connections: Single-ended RCA or balanced XLR
RCA input impedance: 100Kohms
Balanced input impedance: 200Kohms
Output connections: 2-sets WBT Nextgen 5-way binding posts
Power On usage: 19W
Power Off usage: 0.0W
Internally Set Operating Voltages: 100-120VAC or 230-240VAC 50/60 Hz
Size: 8.5 x 3.5 x 12[inches], 216 x 88 x 305mm
Weight: 15 lbs, 7 Kg