BEL CANTO REF501S STEREO POWER AMPLIFIER
The BEL CANTO REF501S stereo power amplifiers provides 250wpc of Class based power amplification with unbalanced RCA and balanced XLR inputs, and handling impedances down to 2ohms.
All Bel Canto products are designed and built in Minneapolis, USA.
The REF501S stereo amplifier, solidly built all-aluminum compact chassis, delivers dynamic, accurate hi resolution sound at 250 Watts with incredible speed and control.
Impedance Optimized Input Stage uses selected precision resistors in 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.
DC Signal Path
The REF501S is DC coupled with no coupling capacitor in the signal path. This optimizes the audio signal quality and maximizes both micro and macro dynamic performance. The amplifier will protect itself and your speakers if excess DC is detected with very fast shut-off.
At the Core
High speed ultra-efficient switch mode amplification delivers literally unheard-of levels of performance using an innovative 5th order loop filter. This technology provides extremely low noise and distortion performance over the entire audio bandwidth, allowing the musical message to come through unchanged and with remarkable purity.
Why Class D?
Well-designed Class D switching supplies generally sound more open through the midrange with better Bass control. Note that 250W is 23.9dBw which means that it will drive an 85dB speaker to 108dB with 111dB peaks, theoretically. In a large room with the volume control 10dB below max we’re measuring about 25W of continuous power. This is loud! Most power concerns are more about control rather than how much real power is delivered. This gives further advantage to Class D and switching power supplies as their efficiency is high even at lower power outputs helping them sound ‘bigger’.
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.
Power Output 1% THD: 250W per channel Minimum Load: 2 ohms per channel Peak Output Current: 17.5 amperes per channel Frequency Response: +/-3 dB 0Hz-50KHz, 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 Damping factor: >1000 Output Impedance at 100Hz: <8 milliohms Dynamic Range: 121dB Input Voltage for Max Output: 1.4Vrms Input connections: Single-ended RCA or balanced XLR RCA input impedance: 47Kohms Balanced input impedance: 95Kohms Output connections: 2-sets WBT Nextgen 5-way binding posts Power On usage: 12W 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 305[mm] (WxHxD) Weight: 12 lbs, 5.5 Kg This item will usually ship within 3-5 working days.
We try and keep on top of our pricing, but it's a mammoth task for one person. So, if you see this product offered cheaper elsewhere, or you are offered it for less elsewhere (proof will be required) and you feel like supporting an extremely independent retailer, do get in touch and we will do our very best to match or beat wherever we can. We can't promise to do so, as there may some extenuating circumstances where we just wouldn't be able to, but we'll always do what we can.
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