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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 Stage
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.
Maximum Power Output: 500W 4 ohms, 250W 8 ohms per channelPower Output 1% THD: 400W 4 ohms, 200W 8 ohms per channelMinimum Load: 2 ohms per channelPeak Output Current: 35 amperes per channelFrequency Response: +/-3 dB 1.5Hz-70KHz, all loadsTHD+N: 0.003% 1W, 1KHz, 4 ohmsIMD (CCIF): 0.0003%, 1W, 14:15KHz, 4 ohmsOutput noise: 35uVRMS A-weighted 10Hz-20KHzVoltage gain: 27dB (single ended or balanced input)Damping factor: >1000Output Impedance at 100Hz: <8 milliohmsDynamic Range: 121dBInput Voltage for Max Output: 2Vrms
Input connections: Single-ended RCA or balanced XLRRCA input impedance: 100KohmsBalanced input impedance: 200KohmsOutput connections: 2-sets WBT Nextgen 5-way binding postsPower On usage: 19WPower Off usage: 0.0WInternally Set Operating Voltages: 100-120VAC or 230-240VAC 50/60 HzSize: 8.5 x 3.5 x 12[inches], 216 x 88 x 305[mm] (WxHxD)Weight: 15 lbs, 7 Kg
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