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Bob Carver's custom built tube mono-block amps - Page 3

post #61 of 71
Thread Starter 
According to the progression of eBay auctions and Carver's comments in various places, this succession of tube amps started when he cleaned out his warehouse and found a lot of parts he was saving for no particular reason. He had a lot of fun building some new designs, one thing let to another and he was making his own transformers and so forth.

More than anything, he does this because he loves to do it. Why tubes? Maybe it has to do with the fact that he's pretty well plugged into the community and knows that many of the folks with deep pockets and collector types are into tubes. They are also pretty simple to design and build, relatively speaking.

Quote:


I think he even had some SS amps that had a user switchable mode that emulates the even order harmonic structure of tubes.

Most of the Sunfire designs have dual outputs with one of them intended to offer the "tube sound".
post #62 of 71
The current source output on the Sunfire has a 1 ohm resistor connected to it, which supposedly gives you a more tubelike sound. I guess it raises it's output impedance?
post #63 of 71
Thread Starter 
Quote:
Originally Posted by MichaelJHuman View Post

The current source output on the Sunfire has a 1 ohm resistor connected to it, which supposedly gives you a more tubelike sound. I guess it raises it's output impedance?

I think the same applies to most of the Carver "t" series SS amps, but they only have the one output. Most of the Carver designs can run to theoretical "0" ohm loads for brief periods, (peaks), many are rated to 2 and a few are rated to 1. So adding a 1u resister doesn't change much in that regard.

In the old days, Carver was often quoted as saying that the real difference between tube and SS was distortion, with tubes having more. Whatever it is, some people really like the "tube sound".
post #64 of 71
Thread Starter 
Here's a used pair of custom mono-blocks for sale:

http://cgi.ebay.com/ws/eBayISAPI.dll...=STRK:MEWAX:IT
LL
post #65 of 71
Thread Starter 
Bob's new outlet for his tube amps, coming soon:

http://www.bobcarver.com/
post #66 of 71
Thanks for keeping us updated. I always enjoy checking this stuff out.
post #67 of 71
Quote:
Originally Posted by MichaelJHuman View Post

The current source output on the Sunfire has a 1 ohm resistor connected to it, which supposedly gives you a more tubelike sound. I guess it raises it's output impedance?

Major reason for the resistor is that it changes the dampening factor..
This was 1st done by some of the Esoteric power amplifiers from Japan 25 years ago...

Just my $0.02...
post #68 of 71
Thread Starter 
Bob Carver's web site is now accepting orders for custom built mono-blocks.

http://www.bobcarver.com/

And yes, if you have to ask you can't afford them.

Here's an article about the new amp and speaker business:

http://www.cepro.com/article/bob_car..._new_audio_co/

This article quotes prices at $7400 for the 180W cherry painted pair, and $12,900 for the "Black Beauties" at 305W.
post #69 of 71
Hard wired, no cb's. These must sound fantastic! Any owners here?
post #70 of 71
Quote:
Originally Posted by greylight44 View Post

Hard wired, no cb's. These must sound fantastic! Any owners here?

Yep biggrin.gif
post #71 of 71
I just got a pair of the 180's in black and they are worth every penny!!!!!!!
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