Reference Stereo Power with Exceptional Speed, Control and Low Noise
The Bel Canto REF501S Balanced Stereo Amplifier delivers high-current stereo amplification from Bel Canto's compact e.One platform. Rated at 250 watts per channel at 1% THD, the REF501S combines substantial power with exceptionally low noise, high damping factor and wide bandwidth to provide precise control of demanding loudspeakers while preserving fine musical detail and dynamic contrast.
Balanced XLR and single-ended RCA inputs make the REF501S easy to integrate with a wide range of preamplifiers and DAC/control components. A 17.5-amp peak output-current capability per channel, 2-ohm minimum-load rating and greater-than-1000 damping factor provide strong electrical control of connected loudspeakers, while premium WBT NextGen binding posts complete a compact amplifier designed for serious two-channel systems.
Highlights & Benefits
-
250W Per Channel Output — Delivers substantial stereo power in a compact chassis for demanding high-performance loudspeakers.
-
17.5A Peak Current Per Channel — High-current capability helps maintain control during difficult impedance swings and large musical transients.
-
>1000 Damping Factor — Extremely low output impedance gives the REF501S excellent control over woofer motion and transient behavior.
-
Balanced XLR & RCA Inputs — Supports both balanced and single-ended system configurations for flexible preamplifier matching.
-
WBT NextGen Speaker Terminals — Premium 5-way binding posts provide a secure, low-resistance connection between the amplifier and loudspeakers.
Technology & Design
High-Speed Class D Amplification — Bel Canto's ultra-efficient switch-mode architecture uses an advanced fifth-order loop filter to maintain very low noise and distortion across the audible frequency range.
Impedance-Optimized Balanced Input Stage — Precision selected resistors are used in a high-common-mode-rejection, low-output-impedance input stage designed to preserve micro- and macro-dynamic information.
DC-Coupled Signal Path — The REF501S uses no coupling capacitor in the signal path, helping preserve signal purity and dynamic response. Fast protection circuitry shuts the amplifier down if excessive DC is detected.
Compact All-Aluminum Chassis — The rigid e.One enclosure provides mechanical stability while allowing high-output amplification to fit into a compact 8.5-inch-wide footprint.
FAQ — Bel Canto REF501S
How much power does the Bel Canto REF501S produce?
Bel Canto rates the REF501S at 250 watts per channel at 1% THD, with up to 17.5 amps of peak output current available from each channel.
Can the REF501S drive low-impedance speakers?
Yes. Bel Canto specifies a minimum loudspeaker load of 2 ohms per channel, making the REF501S suitable for many demanding loudspeaker designs when operated within the manufacturer's limits.
Does the REF501S have balanced inputs?
Yes. The REF501S provides balanced XLR and single-ended RCA inputs. Balanced input impedance is specified at 95k ohms, while RCA input impedance is 47k ohms.
What preamplifier can I use with the REF501S?
The REF501S can be paired with Bel Canto preamplifiers and DAC/control components such as the PRE5 or E1X DS1, as well as other compatible preamplifiers with RCA or balanced XLR outputs.
Why Buy From Us
- Authorized Bel Canto Dealer
- 5% Reward Points on Every Purchase
- Price Match Guarantee
- Expert Amplifier, Speaker and High-End Hi-Fi System Advice
