Bel Canto e.One REF500S Stereo Amplifier

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  • Product Description

    The REF500S stereo amplifier has incredible power per square inch with two independent mono boards in a single chassis. Independent power supplies and isolated input signal filter technology reduces high power amplifier energy for a cleaner, transparent power.

    Impedance Optimized Input
    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. Bel Canto chose them because they impart minimal sonic signature to the sound, remaining open and grain-free up throughout the audio frequency band.


    • Max Power Output: 500W 4 ohms, 250W 8 ohms per Channel
    • Minimum Load: 2 ohms per Channel
    • Peak Output Current: 35 Amps per Channel
    • Balanced Input Impedance: 200 Kohms
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  • Other Details


    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
    Dimensions (WxHxD) 8.5" x 3.5" x 12" (216mm x 88mm x 305mm)
    Weight 15 lbs, 7 Kg