Such thing as 2-channel tube head with stereo outputs for two cabinets??

[wetwonder]

Hi,
I use a Boss ME board and run out and into the front end of a pair of 5 watt bugera combo amps. I'd like to go to larger speakers and was thinking it would be more efficient to have eg. a 50 watt head and a pair of cabinets to do the same thing. Is there such thing as a single tube head that has 2 channels that are wired to two separate outputs - so they can serve as left and right outputs?
Thanks,
Dave

[Enzo]

There are a number of stereo tube power amps. Offhand I can't think of any complete stereo guitar amps - that is to say including preamp.

Marshall made a few and peavey made a number of them in the Classic series.

[jmaf]

I recalled that Gibson made some. Quickly googling it gave me this as an example: Classic Amps: The 1961 Gibson GA-79RVT

[mooreamps]

There is just no demand for a stereo guitar amp... The parts count is double, so the price is almost double, and too many players don't want to cough up the money just to cover the cost of building a mono amp... I did a layout once that would take a stereo input, and blend that into a mono power amp. But for a stereo guitar amp, that would have to be a custom order.....

-g

[Chuck H]

+1 to all above.
I use to use a Peavey Classic 60/60 with very good results. The stereo thing was popular for a short time in the 90's (think big hair and rack mount systems ) so some of these older stereo power amps are now used and affordable. Just run a preamp (or effects send) into a stereo processor and there you go.

Music Go Round

My favorite way to do it though was a pair of combo amps (like you have now) with effects loops. You can run the effects out of each amp into an A/B pedal and then the pedal output into a stereo processor with the processors right channel output to effects return of one combo and the processors left output into the effects return of the other combo. This allows you to use entirely different pedals or settings on each combo preamp for a lot of different tones all with stereo effect. Great stage rig. I used 20W combo's.

[tedmich]

Its always bugged me that a 2-3-4 channel guitar amp is no such thing, its usually just a "single channel amp with switchable preamp gain sections"
a nice way to do true stereo is with two amps and a splitter, like RG's inexpensive one at Geofex or the Jensen splitter active unit, a version of which I am making a PCB for.
http://www.jensen-transformers.com/as/as014.pdf
you can use the OPA627AP($20!) and Jensen trannies ($$) or even Sowters ($$$!) but I am going with a TLE2071($2), Edcor trannies and a dual +/-18v supply
Nothing like running my stereo carvin through two amps, one voiced low one high!

[sgelectric]

Gibson GA-79 RV trivia

I'm currently working on a Gibson GA-79 RV (same as GA-79RVT except no tremolo). There are two preamps and two 15 watt output sections that share a common power supply and reverb tank.There is one 10" speaker per channel.There is also a stereo/monoaural switch.RCA inputs for a stereo phonograph are provided
You can plug into either channel or there is another input between the two.It is marked "stereo accordian" and is designed for a TRS plug.My understanding is that accordians were/are available that had one pickup for the bass buttons and another for the keyboard.It is also possible to access both channels with a standard guitar cord by inserting the plug in about halfway.
There are no outputs for separate extension cabinets to create a wide stereo image so I suppose the intended market for this amp were accordians and 345s.355s etc..

The amp sounds great. SG

[kg]

build it!

[Michael Allen]

I just built one for a guy here in Seattle. He plays a rickenbaker with stereo output. 200W Bass side with 50W guitar side in the same head

[Firechief]

I just built one for a guy here in Seattle. He plays a rickenbaker with stereo output. 200W Bass side with 50W guitar side in the same head

OK michael, teach me somthing, what model rickenbacker was it? Sounds like a very special insturment. Are there pictures on the web somewhere? Also the amp you built was solid state, I presume?

[riz]

I have an old blue/green Supro head, with the two output transformers, just begging to be reborn...

[Zipslack]

Funny...

I have an old junk Sony reel-to-reel with working amp that I was considering doing this exact thing...it has two seperate single-ended 6AQ5 amps (left and right). I was thinking of putting the whole thing into a twin cabinet with each amp section voiced differently and using an A/B for switching and/or combining both. I even mentioned in a post about it that it would be interesting to have a "real" two-channel amp instead of just switched preamp. Glad to see I'm not the only one with these crazy thoughts...

[Michael Allen]

Rickenbacker 4001.

4x6550 for the bass side, 2xEL34 for the guitar side.

[Chuck H]

A Rick 4001 is just a bass.?. Where does the "guitar side" come in??? I think we're going to need a pic.

[kg]

the ricks have two 1/4" jacks, one wired to the bridge one to the neck pup.