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Classic Series

BSC-100m Monaural Class A Amplifier

Our first product and new classic, the BSC-100m was our inaugural amplifier introduced at the 2012 Consumer Electronics Show (CES) in Las Vegas, Nevada. The BSC-100m 100 Watt Class A monaural amplifier brought to life a delicate blend of finesse and power. The BSC-100m represents the very first product wholly designed and manufactured by Bret D'Agostino.


Based on a massive custom designed toroidal transformer with over 90,000 microfarads of filter capacitance, the BSC-100m can deliver thunderous power with speed and textural finesse, trademark qualities of BSC amplifiers. The BSC-100m offers great performance and a great value, and was exuberantly welcomed by audiophiles and industry pundits alike.


The BSC-100m and BSC-60s are still available on a limited basis. Contact your BSC Audio dealer or BSC Audio directly for more information.

Output Power: 100 W into 8 Ω, 200 W into 4 Ω, 400 W into 2 Ω, 800 W into 1 Ω
Total Harmonic Distortion: < 0.07% at 20 Hz to 1 kHz, < 0.60% at 10 K, < 1.50% at 20 K, all referenced to 100 W 8 Ω 2.83 V
Signal-to-Noise: > 93.50 dB unweighted, > 96.50 dB A-weighted, all referenced to 100 W 8 Ω 2.83 V
Input Impedance: 48 K balanced via XLR connector, 20 K single-ended via RCA connector
Power Consumption: Stand by Mode: < 2 W, Idle: 500 W, Maximum: 1,300 W
Downloads: Quick Start GuideOwner's Manual
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Classic Series Overview

At the 2013 CES show, the newly fashioned BSC-100m and its sibling, the BSC-60s Stereo amplifier, were introduced sporting a refined cosmetic look, along with the LL-1s preamplifier as a concept product. The LL-1s was intended to be the sonic partner to the BSC-60s and 100m power amplifiers. Shortly after BSC's return from the CES show it was apparent that despite the performance of the amplifiers being well beyond their respective price tag, BSC Audio struggled to gain mainstream acceptance. It became abundantly clear from this market experiment that a value/ performance biased product would not succeed on its own accord despite its well noted performance.


Thus the BSC design team began the process of redefining their product platform. After scrapping the LL-1s preamplifier, a "clean slate" enterprise that incorporated the internal circuit design and the external visual mechanisms of our amplifiers and preamplifiers had commenced. Benefited by what we had accomplished from our previous efforts, this new initiative afforded us the opportunity to imagine new products that surpassed any previous accomplishment not only in performance, but in visual appeal as well.

BSC-100m

The BSC-100m doubles its 8 ohm rated output power into 4, 2 and 1 ohm respectively producing 800 watts continuously with a maximum continuous output of over 1,200 watts. A second transformer is provided for the soft turn-on and other low level circuits to allow the amplifier to be activated either by a 12 volt trigger source or via the front panel switch. The BSC-100m draws less than 2 watts in standby mode. Critical audio signals are preserved using discrete, complimentary and DC coupled input circuits. Signal paths are kept short and pass through the least amount of circuitry required to obtain the desired result. All the components meet or exceed military standards and are over specified to promote long life expectancy. The output stage is comprised of eight 230V, 17A, 200W output devices coupled to 4 massive heatsink towers optimized to disperse the heat of the 100 watts pure Class A power over a wide cross sectional area effectively reducing the overall chassis temperature. Easily accessed from the front panel rotary switch, the BSC-100m offers the user an option to quickly reduce Class A amplifier bias to a half power 50W class A mode and further to a very low power ECO mode.

BSC-100m Specifications

Output Power: 100 W into 8 Ω, 200 W into 4 Ω, 400 W into 2 Ω, 800 W into 1 Ω (under ideal power conditions)
Output Impedance: < 0.15 Ω at 20 Hz to 30 kHz
Gain: 26.10 dB
Input Impedance: 48 K balanced via XLR connector, 20 K single-ended via RCA connector
Input Sensitivity: 1.40 V RMS balanced or single-ended
Frequency Response: 20 Hz to 20 kHz +/- 0.25 dB
Total Harmonic Distortion: < 0.07% at 20 Hz to 1 kHz, < 0.60% at 10 K, < 1.50% at 20 K, all referenced to 100 W 8 Ω 2.83 V
Signal-to-Noise: > 93.50 dB unweighted, > 96.50 dB A-weighted, all referenced to 100 W 8 Ω 2.83 V
Power Consumption: Stand by Mode: < 2 W, Idle: 500 W, Maximum: 1,300 W
Inputs: 1 single-ended via RCA connector, 1 balanced via XLR connector
Outputs: 1 pair custom designed gold plated binding posts 0.25 in (6.40 mm) spade terminal width
Dimensions: 16.50 in (W) x 9.75 in (H) x 18.25 in (D)
or 420.00 mm (W) x 248.00 (H) x 464.00 mm (D)
Weights: unit weight: 80.00 lbs (36.29 kg)
shipping weight in carton: 86.00 lbs (39.01 kg)

BSC-60s Stereo Class A Amplifier

Borrowing the power supply capacity and chassis structure from the BCS-100m, the Stereo BSC-60s is a compact version of its monaural counterpart. Splitting the immense power supply into two distinct halves and coupling it to independant and isolated driver and output stages completes this potent stereo varient. Starting with a hearty 60 Watts Class A power per channel the BSC-60s can easily double its respective output power into 1 ohm producing a respectable 600 watts a channel. An integrated bias control switch manages the bias level for both channels independantly.

BSC-60s Specifications

Output Power: 60 W into 8 Ω, 120 W into 4 Ω, 240 W into 2 Ω, 480 W into 1 Ω (under ideal power conditions)
Output Impedance: < 0.15 Ω at 20 Hz to 30 kHz
Gain: 26.10 dB
Input Impedance: 48 K balanced via XLR connector, 20 K single-ended via RCA connector
Input Sensitivity: 1.40 V RMS balanced or single-ended
Frequency Response: 20 Hz to 20 kHz +/- 0.25 dB
Total Harmonic Distortion: < 0.07% at 20 Hz to 1 kHz, < 0.60% at 10 K, < 1.50% at 20 K, all referenced to 60 W 8 Ω 2.83 V
Signal-to-Noise: > 93.50 dB, unweighted, > 96.50 dB, A-weighted, all referenced to 60 W 8 Ω 2.83 V
Power Consumption: Stand by Mode: < 2 W, Idle: 400 W, Maximum: 1,200 W
Inputs: 1 single-ended via RCA connector, 1 balanced via XLR connector
Outputs: 1 pair custom designed gold plated binding posts 0.25 in (6.40 mm) spade terminal width
Dimensions: 16.50 in (W) x 9.75 in (H) x 18.25 in (D)
or 420.00 mm (W) x 248.00 (H) x 464.00 mm (D)
Weights: unit weight: 80.00 lbs (36.29 kg)
shipping weight in carton: 86.00 lbs (39.01 kg)