The Burning Amp Festival- an Audio Happening

[tbrooke]

B4

Nelson had a B4 at BAF that apparently was a pair of B1s with crossover circuitry. I looked at it for a while but couldn't figure out too much. Does anyone know the details. I am very interested in exploring an active B1 and this looked like it might be the answer

 

[Tea-Bag]

This was simply an active crossover with some baffle step correction etc, in a B1 looking chassis. It was not a pre. THe knobs were able to change the gain of lows and highs.

 

[tbrooke]

This was simply an active crossover with some baffle step correction etc, in a B1 looking chassis. It was not a pre. THe knobs were able to change the gain of lows and highs.

So it was simply a crossover without the B1 circuitry?

It looked like there were B1 and crossover boards in there.

Also what about the crossovers?

Tom

 

[Renron]

 

[Zen Mod]

Here is another one to bubble in. I am not quite sure what John VH is up to.
Think what you will.

 

[flg]

LOL

 

[wrenchone]

This was fun while it lasted (I had some ruder captions in mind), but some more pictures would be nice. I was in and out and around the place, but mostly on the first floor trying out stuff, so I by no means saw everything that was happening on the second floor.

 

[carpenter]

What?! The second floor is where all the important stuff happened!

 

[carpenter]

By the way, are you a plumber? I like your avatar.

 

[wrenchone]

Depends on your viewpoint - I brought 3 amps and a preamp to audition, and a lot of playing happened on the first floor. Having said that, I was really glad to be able to hook my little cube-tube amp up with the Lowthers upstairs, even if only one channel was playing at the time (with field-coil speakers, you have to remember to turn on the field supply - duh).

Next year, I'm determined to cart the whole reproduction chain to BA with me so that there can be a lot more informal auditioning. There were a whole lot of amps this time around, and not so many sources/preamps/speakers.

 

[carpenter]

Just pullin' your leg, wrenchone.... I think I remember hearing your amp. I thought it sounded terrific. I was still nervous as hell after demonstrating my amp.

 

[wrenchone]

Well, I was wondering if my amp, after months of doing duty in my living room, would choose a hideously public appearance to pitch a fit. So far, during the three year history of BA, there's been very few amps that actually burned.

 

[TerribleT]

little cube-tube amp

Hello,
Could you describe your "little cube-tube amp" and maybe post a schematic? I was very disappointed when you ended your demo prematurely. The sound from that one speaker was very smooth and satisfying. I thought it sounded great.
Regards,
David

 

[wrenchone]

Check the "Shrine" thread in the tube amp section for a schematic. If you search for "Shrine" in the title and wrenchone as the author using advanced search, you should hit it. The amp evolved from using a triode connected 6AH6 first stage to a triode-cascoded JFET front end. The amp uses a custom-designed SMPS, but it should work ok with a conventional supply, without the compact form factor.

The amp debuted in embryonic form at the first BA, but didn't get a chance to audition then. This BA was its first public performance.

 

[benchtester]

Well, I was wondering if my amp, after months of doing duty in my living room, would choose a hideously public appearance to pitch a fit. So far, during the three year history of BA, there's been very few amps that actually burned.

I don't know what happened at last year's BA, but I smelled the smoke getting out in the main room. But, I never found the source.

P.S. I find the name Burning Amp both amusing and frightening. Probably due to prior experience, I was bench testing an amplifier, looked inside and there was a flame, like on a match head. It turned out that I had high frequency oscillations across a carbon resistor.

 

[Zen Mod]

I don't know what happened at last year's BA, but I smelled the smoke getting out in the main room. But, I never found the source.

don't be naive .....

look who is always there .....

 

[WBS]

I don't know what happened at last year's BA, but I smelled the smoke getting out in the main room. But, I never found the source.

If you go through the posts following last year's BAF, you'll find the answer to your question. I can't remember whose amp it was, but I'm pretty sure something fried.

 

[Jeb-D.]

Next year, I'm determined to cart the whole reproduction chain to BA with me so that there can be a lot more informal auditioning. There were a whole lot of amps this time around, and not so many sources/preamps/speakers.

The speaker variety did seem much smaller than last year.

 

[boywonder]

Jeb: I was hoping to hear your Russian tube amp on Nelson's BoB's. Perhaps it (or whatever other creation you come up with) will make it upstairs next year.


IIRC, there were only 3 pairs of speakers auditioned.....the scanspeaks, Nelson's OB's, and the NHT mules....I suppose the OB's count for several based on the driver swap-outs.

 

[Jeb-D.]

Jeb: I was hoping to hear your Russian tube amp on Nelson's BoB's.

Yeah, I was kind of bummed about that.

What area of SoCal are you in? Your welcome to hear them with my horn setup if your ever in the area. I'm in the Santa Clarita Valley (it's in Los Angeles county).