Bully Sound's New BSC-60s 60 Watt Class A Stereo Amplifier

this thing better have 24k gold inside it.

Geez, what a ripoff. Who in their right mind would pay that for a measly 60W?

Wow, I'm glad I'm not the only one who immediately thought this looked like a ripoff! Only 60 watts and its huge for its power rating too. Color me unimpressed.

My old Nelson Pass designed Nakamichi class A amps exceed the Spec's of these products for 10% of the cost.

Lots of Kool Aid slurpers will go for this. Then they'll wax poetic with their usual, predictable on of five or so canned phrases such as: Ohhhhhhh my speakers midrange blossomed, the soundstage expanded hugely, the music became emotional.....blah, lah, blah. Kool Aid Classic for the delusional cave dweller crowd. LOL

But,but wait it will hit a cool 80wpc at 4 ohm, AB though.



DJoel

Because it actually delivers 60 watts. Although I could by a McIntosh amp that delivers more wattage for the same price and with a THD of .0001%.

The comments are great. Anyone care to benchtest one just for fun?

Do you want to send me one to test?

Item is in the mail, I just need you to reimburse me for the shipping since it is so heavy.

The Nakamichi Stasis amps were fine amps, but were Not class A. Take a look at the true class A amps Pass Labs offers. I don't know anything about the bully sounds product but their price is not out of line for a true 60 watt class A amp.

+1

From its published specs, the amp will be idling at close to 1kW.

I wondered about a more than a passing resemblance to a Krell KSA-50 until I checked out their website. The founder of Krell is behind this company.
http://www.bscaudio.com/history.htm

The founder is the not behind this company. The son is.

Hmm Denon AVR-4520CI is rated at 150 wpc x9 channels at 0.05% THD (all channels driven) for only $2,500.

BSC-60s

The BSC-60s, 60 watt class A stereo power amplifier shares every feature and is built to the same standards as its big brother the BSC-100m. This 60 Watt per channel amplifier is built around a split 1,368 VA custom toroidal transformer and over 50,000 microfarads of filter capacitance per channel. The BSC-60s amplifier can double its 8 ohm rated output power into 1 ohm producing 480 watts continuously both channels driven.

The BSC-60s is a dual mono design having discrete driver, output and protection circuits.

The output stage for each channel is comprised of 2 massive internally mounted heat sink towers designed to cool the six 230V, 17A, 200W output devices. The towers are optimized to disperse the heat of the 60 watts pure Class A power over a wide cross section reducing the overall chassis temperature. The BSC-60s also allows the user to quickly reduce the Class A bias on the amplifier to a 50% or approximately 30W class A mode and further to a very low power ECO mode via the front panel rotary switch. Bias flexibility allows control over your power demand in different listening situations without limiting power output.

The BSC-60s also boasts aluminum powder coated chassis, custom machined hardcoat anodized front panel and decorative inserts, and solid brass machined gold plated output binding posts. BSC products have a 5 year warranty for parts and labor.

Specifications:

Output power - 60 Watts into 8 ohms, 120 watts into 4 ohms, 240 watts into 2 ohms, 480 watts into 1 ohm both channels driven

Output Impedance - < .05 ohms at 20 Hz to 20 kHz

Gain - 24.3 dB

Input Impedance - 48K Balanced via XLR connector, 20K single ended via RCA connector

Input sensitivity - 1.33V rms Balanced or Single ended

Frequency response - 20 Hz to 20 kHz +/- .25 dB

Total Harmonic Distortion - <0.08% at 20Hz to 1kHz, <.7% at 10K, <2.0% at 20K at 100 Watt output 8 ohms

Signal-to-noise - >92.5 dB, unweighted, > 96.5 dB, "A"-weighted, 60 W, 8 Ohms

Power consumption - Stand by Mode < 2 Watts, Idle: 350 W, Maximum: 1300 W

External Chassis top temperature < 56° C, 133° F at 100% Bias

Inputs - 2 single-ended via RCA connector, 2 balanced via XLR connector

Outputs - 2 pair custom designed gold plated binding posts .25", 6.4 mm spade terminal width

Dimensions - 16.5 in. W x 9.75 in. H x 18.25 in. D
420 mm W x 248 mm H x 464 mm D
Weight - In shipping carton: 86 lb, 39.00 kg
Unit Only - 80 lb, 36.29 kg

Still not impressed

Apples and oranges. If that Denon were outputting a constant 60 watts through 2 of its channels (which is what a class A amp does with no signal) it would cook it's self in short order not even mentioning what the class A amp will do into lower impedances. Amps do sound different to me but if you can not tell the difference then that is fine too.

+1

This is a 480W/ch amp into 1ohm, useful for difficult loads like electrostatics. An amp may be neutral if it is operating within design limits, under severe current limiting it is a completely different matter.

In order to achieve the same voltage at the speaker terminal the amp will have to provide 8x the current at 1 ohm compared to 8ohms (ie 8x power) , most common off the shelf stuff will current limit and clip the output signal before getting here.

There are better options if the intent is to drive ordinary 8 ohm speakers.

Does anyone remember the Audio magazine review from the 80s where they actually used a Mark Levensen class A amp as a welder?