Analog Tube Power amp simulator: studying possibilities

Feral Feline said:
Not sure I understand what you're after...

The Mofeta and the Thunderbird are pedals, preamps if anything. They don't have poweramps.

So you could run either one into a real tube-preamp and speaker emulator of some kind.
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No they're not. They are preamp + poweramp emulations. Hence my question: can I drive the poweramp section of any of these circuits with a REAL tube preamp and use a speaker emulator after the poweramp emulator without impedance problems? If so, would a buffer be a good idea akd a fix?
 
Keyword = "emulations".
They don't have power-amp sections.

So you want a "REAL tube preamp" > Mofeta/Thunderbird > speaker emulator...
I don't see a problem with that. A buffer shouldn't be a problem, neither the Mofeta nor T-bird are like a Fuzz Face.

Have you looked at the Mofeta and T-bird schematics to determine which part is emulating the amplifiers?
I'm guessing for the PPCB Mofeta, the power-amp emulation comes after the tone-stack at C15, but then you lose a big part of what makes the Mofeta sound like it does.

For the T-bird, I couldn't say what's "power-amp", to my eyes it looks like the whole circuit is part and parcel.

What sort of speaker emulator were you thinking of using?


I'll hope someone more knowledgeable steps forward and hopefully answers conclusively, as I'm just but a lowly padawan.
 
Sono said:
Would it be possible to use the poweramp section of, say the Mofeta or the Thunderbird, with a REAL tube preamp and a speaker emulator after it?
Would there be an impedance mismatch between the preamp output and any of these poweramp's input?
If so, would that be fixed with a buffered output to enter the poweramp with a low impedance signal?
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These parts aren't strictly power amplifiers. They only simulate certain aspects of PA "sound" and behavior.
 
For me there is a difference between listening to a simulation and playing/feeling one.
A friend of mine plays with a UA plexi pedal and an active Fender FRFR monitor. I like it when he plays it. I need that under the fingers feeling.
I like this video of the Wampler Pedalhead but I am afraid the latency 0,75 ms would still be a problem for me.
I have a Red box speaker simulator but because of the noise it produces it is collecting cm's of dust
 
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temol said:
These parts aren't strictly power amplifiers. They only simulate certain aspects of PA "sound" and behavior.
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Thanks for your reply. I'm aware they aren't strictly power amplifiers, hence my question :)

What I'm trying to achieve is to build a box into which I can plug a real tube preamp at the input and a mixer/soundcard/SS amp/FRFR monitor at the output abd make it sound an d feel like a tube amp :)

I've tested a setup consisting of a tube preamp into Deadastronaut Astrosim and it sounds quite good but the feeling I have is it lacks the dynamics a tube amp has. When I play soft it responds but when hitting the strings hard it goes "thin". My guess is I need a poweramp emulation to achieve or get closer to that "feeling" (maybe I'm wrong).

So I was wondering if the Thunderbird or the Mofeta (since they include a poweramp section emulation) would serve that purpose.

Any input is very welcome and appreciated.
Cheers
Sono
 
Why would a solid state pedal based on a solid state amp with some "power amp emulation" which just means they threw a weird gain stage running transistors at 18 volts make it feel like a tube amp? (Referring to the mofeta)
No it won't help. It might sound good.
 
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