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4.4 / 5
(5 votes)

TPA-1 - Class AB tube power amplifier
The TPA-1 is a digital emulation of a class AB tube power amplifier for guitar.

It has been designed and developed to be paired with any guitar preamp (VST/AU or even hardware).

Its circuit is not based on any particular physical power amplifier, but it has been designed to have enough versatility to range from vintage to modern tones, letting the user be free to shape its dynamic behaviour with ease, without the need to be a tube amplifier tech.

Every single component on the signal path of the analog circuit has been taken into account and modeled in the best possible way to match the original sound as it was meant to be, while keeping an eye on CPU performances and real-time playability at the same time.

The TPA-1 is meant to be used as a guitar tube power amplifier simulator for live playing and jamming, tracking or mixing inside hosts capable of VST or AU Plug-Ins support.
  • Dynamic EL34 / 6L6GC / KT88 pentodes/tetrodes analog modeling (push-pull stage).
  • Dynamic ECC83 / 12AX7 triode analog modeling (phase inverter stage).
  • Mono / Stereo processing support.
  • Selectable oversampling rate (up to 8x).
  • Global input / output level controls.
  • Double precision (64-bit) floating point mathematical model.
  • Fully automatable controls.

(3.7 Mb)
  V 1.0.1
(3.6 Mb)
  V 1.0.1
(6.9 Mb)
  V 1.0.1
(7 Mb)
  V 1.0.1


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Mar 08 2020
  4  / 5
This tube amp sim, is excellent for providing depth, warmth and punch to your guitar tracks. Also has a selection of tubes behind. Useful addition for guitar realism.
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Sept 21 2016
  5  / 5
Placed after preamp it works wonders on both clean and driven tones. Especially I like the crunch it adds to a clean tone attack. Stack of Anvil+TPA-1+NadIR is my fave for live.
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Jun 05 2016
  Robinson Carvajal
  5  / 5
I like this. Other great Ignite product!
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Sept 19 2013
  3  / 5
Nice, but my uneducated ears don't really hear what it does.. sorry.
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