Bully Sound's New BSC-60s 60 Watt Class A Stereo Amplifier - AVS Forum
Forum Jump: 
 
Thread Tools
post #1 of 20 Old 10-09-2012, 11:39 AM - Thread Starter
Senior Member
 
TeddyP's Avatar
 
Join Date: Sep 2012
Location: In Your Speakers
Posts: 206
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 17
Start-up Bully Sound has launched its newest high-end home-audio component, the $7,900 BSC-60s Class A amplifier rated at 2x60-watt into 8 ohms.


Quote:
n late 2011, the company launched its first product, the BSC-100m Class A 100-watt monaural amplifier at $14,750/pair. Its third product, to be released soon, will be the BSC-LL1 remote control line-level preamplifier at an expected $6,900 to $7,900.

The specs...
Quote:
Bully’s latest product, the dual-mono BSC-60, is stable to 1 ohm, boosting output to 2x120 watts into 4 ohms, 2x240 watts into 2 ohms, and 2x480 watts into 1 ohm, both channels driven.

At 2x60 watts into 8 ohms, the amp runs at full Class A, but into 4 ohms, the amp run at Class A at up to about 2x80 watts but goes into Class AB mode after that.

The output stage for each channel consists of massive internally mounted heat sink towers to cool the six 230-volt, 17-amp 200-watt output devices. The BSC-60s also lets users reduce the Class A bias on the amplifier via a front-panel rotary switch to 50 percent, or about 30 watts, for a very low power eco mode.

The aluminum powder-coated chassis measures 16.5 by 9.75 by 18.25 inches, and it features custom-machined hardcoat anodized front panel, decorative inserts, and solid-brass machined gold-plated output binding posts.

Frequency response is said to be 20Hz to 20kHz +/- 0.25 dB with THD of less than 0.08 percent at 20Hz to 1kHz, at less than 0.7 percent at 10kHz, and less than 2 at 20kHz at 100-watt output into 8 ohms.

[Source]

Get all your A/V news at: AVS Latest News
Like AVS Forum on Facebook
Follow AVS Forums on Twitter
Wanna join the AVS Forum news staff? Contact me!
.......................................................................................
TeddyP is offline  
Sponsored Links
Advertisement
 
post #2 of 20 Old 10-09-2012, 12:35 PM
AVS Special Member
 
smokarz's Avatar
 
Join Date: Feb 2007
Location: Hartford, CT USA
Posts: 3,256
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 9 Post(s)
Liked: 63
this thing better have 24k gold inside it.
Mr47 likes this.
smokarz is online now  
post #3 of 20 Old 10-09-2012, 02:09 PM
AVS Special Member
 
flyng_fool's Avatar
 
Join Date: Aug 2009
Location: Frisco, TX
Posts: 3,422
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 71
Geez, what a ripoff. Who in their right mind would pay that for a measly 60W?
Mr47 likes this.

Dumb enough to spend lots of cash on this junk!
flyng_fool is offline  
post #4 of 20 Old 10-09-2012, 02:28 PM
Member
 
Mr47's Avatar
 
Join Date: Feb 2010
Location: Illinois
Posts: 62
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 10
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.
Mr47 is offline  
post #5 of 20 Old 10-09-2012, 06:03 PM
Member
 
Eric Minden's Avatar
 
Join Date: Feb 2002
Posts: 25
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 12
My old Nelson Pass designed Nakamichi class A amps exceed the Spec's of these products for 10% of the cost.
Eric Minden is offline  
post #6 of 20 Old 10-10-2012, 12:16 AM
 
Breako's Avatar
 
Join Date: Jul 2012
Posts: 120
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 17
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
Breako is offline  
post #7 of 20 Old 10-10-2012, 02:57 PM
AVS Special Member
 
Djoel's Avatar
 
Join Date: Jul 2006
Location: NYC
Posts: 7,506
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 37 Post(s)
Liked: 158
Quote:
Originally Posted by flyng_fool View Post

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


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



DJoel
Djoel is offline  
post #8 of 20 Old 10-10-2012, 08:07 PM
Senior Member
 
kbeam418's Avatar
 
Join Date: Jan 2011
Location: 41.7080574, -83.5911255 N41° 42.4834', W083° 35.4675'
Posts: 368
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 5 Post(s)
Liked: 44
Quote:
Originally Posted by flyng_fool View Post

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

"Then one day you find ten years have got behind you no one told when to run you missed the starting gun."
kbeam418 is offline  
post #9 of 20 Old 10-10-2012, 09:17 PM
Member
 
ace1970's Avatar
 
Join Date: Mar 2012
Location: Seattle & Charotte
Posts: 74
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 10
The comments are great. Anyone care to benchtest one just for fun?
ace1970 is offline  
post #10 of 20 Old 10-11-2012, 05:41 AM
AVS Special Member
 
smokarz's Avatar
 
Join Date: Feb 2007
Location: Hartford, CT USA
Posts: 3,256
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 9 Post(s)
Liked: 63
Quote:
Originally Posted by ace1970 View Post

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


Do you want to send me one to test?
smokarz is online now  
post #11 of 20 Old 10-11-2012, 08:53 PM
Member
 
ace1970's Avatar
 
Join Date: Mar 2012
Location: Seattle & Charotte
Posts: 74
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 10
Quote:
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. smile.gif
ace1970 is offline  
post #12 of 20 Old 10-14-2012, 08:27 AM
Member
 
bobdoggy's Avatar
 
Join Date: Oct 2007
Posts: 69
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 10
Quote:
Originally Posted by Eric Minden View Post

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

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.
bobdoggy is offline  
post #13 of 20 Old 10-14-2012, 02:16 PM
AVS Special Member
 
Tong Chia's Avatar
 
Join Date: Nov 2002
Posts: 1,140
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 16
Quote:
Originally Posted by bobdoggy View Post

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
Tong Chia is offline  
post #14 of 20 Old 10-14-2012, 07:54 PM
AVS Special Member
 
smokarz's Avatar
 
Join Date: Feb 2007
Location: Hartford, CT USA
Posts: 3,256
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 9 Post(s)
Liked: 63
Quote:
Originally Posted by Tong Chia View Post

+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.
smokarz is online now  
post #15 of 20 Old 10-15-2012, 08:49 AM
AVS Special Member
 
David Susilo's Avatar
 
Join Date: Aug 2002
Location: Markham, Canada
Posts: 9,414
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 151 Post(s)
Liked: 331
Quote:
Frequency response is said to be 20Hz to 20kHz +/- 0.25 dB with THD of less than 0.08 percent at 20Hz to 1kHz, at less than 0.7 percent at 10kHz, and less than 2 at 20kHz at 100-watt output into 8 ohms..

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

follow my A/V tweets @davidsusilo

ISF, THX, CEDIA, Control4 & HAA certified
Reviewer for TED, QAV, AUVI & DownUnder Audio Magazine

my (yet to be completed) BD list
my home theatre

David Susilo is online now  
post #16 of 20 Old 10-21-2012, 08:58 PM
Member
 
joeinid's Avatar
 
Join Date: Jan 2012
Posts: 57
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Liked: 10
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
joeinid is offline  
post #17 of 20 Old 10-21-2012, 09:43 PM
AVS Special Member
 
David Susilo's Avatar
 
Join Date: Aug 2002
Location: Markham, Canada
Posts: 9,414
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 151 Post(s)
Liked: 331
Still not impressed

follow my A/V tweets @davidsusilo

ISF, THX, CEDIA, Control4 & HAA certified
Reviewer for TED, QAV, AUVI & DownUnder Audio Magazine

my (yet to be completed) BD list
my home theatre

David Susilo is online now  
post #18 of 20 Old 10-27-2012, 09:30 AM
Member
 
bobdoggy's Avatar
 
Join Date: Oct 2007
Posts: 69
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 10
Quote:
Originally Posted by David Susilo View Post

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

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.
bobdoggy is offline  
post #19 of 20 Old 10-27-2012, 04:00 PM
AVS Special Member
 
Tong Chia's Avatar
 
Join Date: Nov 2002
Posts: 1,140
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 16
Quote:
Originally Posted by bobdoggy View Post

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.
Tong Chia is offline  
post #20 of 20 Old 10-27-2012, 04:37 PM
Member
 
bobdoggy's Avatar
 
Join Date: Oct 2007
Posts: 69
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 10
Does anyone remember the Audio magazine review from the 80s where they actually used a Mark Levensen class A amp as a welder?
bobdoggy is offline  
Reply Latest Industry News

User Tag List

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page


Forum Jump: 

Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off