Marshall AVT150 combo. 150 watts RMS.
Has a valve pre amp.
Hasn't arrived yet so don't know how good it sounds.
Has a valve pre amp.
Hasn't arrived yet so don't know how good it sounds.
An externally hosted image should be here but it was not working when we last tested it.
I don't think they sound bad, so work with it a while, see what tones you can get.
it doesn't really have a tube preamp, it has a tube IN the preamp. Maybe a small distinction.
it doesn't really have a tube preamp, it has a tube IN the preamp. Maybe a small distinction.
It makes a change for me actually buying a ready made guitar amplifier.
For the last 40 years I have always had disco gear and just used a Zoom 707 effects pedal into the disco mic input.
I have designed SS amplifiers with a tube front end and it still just sounded SS.
So will be interesting to see if they have produced a real valve sound just using a tube in the preamp.
For the last 40 years I have always had disco gear and just used a Zoom 707 effects pedal into the disco mic input.
I have designed SS amplifiers with a tube front end and it still just sounded SS.
So will be interesting to see if they have produced a real valve sound just using a tube in the preamp.
An accurate observation.
You listen with your ears and not with your eyes 🙂
Define "valve sound".
If they mean "plug here and you'll believe you plugged into a full tube amp", well, no, not at all.
If they mean: "when you heavily overdrive the tube inside it will clip like a valve and not like a transistor, Op Amp or diode clipper" , yes, that far it's true.
The waveform will be different and on a "deaf test" meaning you just look at the scope screen it's easy to separate them.
On a listening test they will also sound different (that is while clipping; if clean the difference may exist, but is almost inaudible) but still a preamp triode clipping (what you have here) sounds different than a pentode power stage clipping ... which is the more desirable sound.
That said, congratulations on your purchase, now you have a real Guitar amp.
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In about 1980 I came across a circuit in Wireless World for a soft limiter.
That is the nearest SS circuit that came close to a valve sound.
It definitely rounds off the peaks rather than clips them.
That is the nearest SS circuit that came close to a valve sound.
It definitely rounds off the peaks rather than clips them.
An externally hosted image should be here but it was not working when we last tested it.
Amp arrived today.
Had a quick play and it has a wide range of sounds from hard rock to acoustic mode.
This is all good but it is 25Kg and a pig to carry around.
I might just sell it and buy a head and use a separate speaker.
Had a quick play and it has a wide range of sounds from hard rock to acoustic mode.
This is all good but it is 25Kg and a pig to carry around.
I might just sell it and buy a head and use a separate speaker.
Its bad enough with this combo with one speaker.
I looked up the weight of a Marshall head only and that was 15Kg which is more manageable.
I looked up the weight of a Marshall head only and that was 15Kg which is more manageable.
I have a Peavey Triumph 120 combo. Sooo heavy. Got my son (the bass player) to carry it into gigs. Then he refused to carry it too.
I took the chassis out of the cabinet, made it into a head, put a new panel into the cabinet to fill the gap left.
Resulted in same amp, but now two pieces half the weight each.
Regards
JimG
I took the chassis out of the cabinet, made it into a head, put a new panel into the cabinet to fill the gap left.
Resulted in same amp, but now two pieces half the weight each.
Regards
JimG
I was considering also using the Marshall for light disco use.
I disconnected the speaker and ran a signal generator through it.
It was flat from 50Hz to well over 20KHz.
So it looks like it will reproduce disco music if coupled to a set of disco speakers.
Obviously not stereo but should sound OK.
I disconnected the speaker and ran a signal generator through it.
It was flat from 50Hz to well over 20KHz.
So it looks like it will reproduce disco music if coupled to a set of disco speakers.
Obviously not stereo but should sound OK.
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