Vox VT20X 20-watt 1x8" Modeling Combo Amp

20-watt 1x8" Modeling Guitar Combo Amplifier with DSP
Vox VT20X 20-watt 1x8
Vox VT20X 20-watt 1x8
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Vox VT20X 20-watt 1x8" Modeling Combo Amp
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Authentic Tube Tone with High-performance DSP

The Vox VT20X modeling guitar combo amplifier employs sophisticated digital technology, along with a unique analog circuit, to bring you authentic tube power amp performance. Vox analyzed actual amp components and circuits when they designed the VT20X, so each of its 11 amplifier models sounds incredibly realistic. A multi-stage Valvetronix tube preamp incorporates true tube circuitry, so you feel the subtle nuances that you'd expect from a tube guitar amp. A tightly sealed cabinet and expertly designed bass-reflex structure, along with 13 classic stompbox effects, ensure that the Vox VT20X modeling guitar combo amplifier delivers an unbelievably powerful tone that far exceeds its modest size.

Vox VT20X Modeling Guitar Combo Amplifier at a Glance:
  • Hybrid analog/digital technology yields stunning tone
  • High-performance DSP delivers next-level sound quality
  • Tone Room editor/librarian software for customizing amps and effects
Hybrid analog/digital technology yields stunning tone

When Vox was designing the VT20X, they didn't just model the sound of guitar amplifiers, they employed VET (Virtual Elements Technology) to analyze each amp down to the component level. The result is a true-to-life reproduction of each model's characteristics. A Valvetronix preamp incorporates a multi-stage tube amplification circuit to provide you with the distinctive distortion, response, and tonal characteristics of a classic tube amplifier. The VT20X's power amp stage combines a unique analog circuit with a high-performance digital power amp to duplicate the tonal differences between Class A and AB, the effect of bias values on tone, and the changes in dynamic response of tubes.

High-performance DSP delivers next-level sound quality

Highly sophisticated DSP imbues the Vox VT20X with an enormous level of processing power. You'll hear the difference in the VT20X's sampling rate and sound of each of its 11 realistic amp models and in the quality of its 13 onboard effects.

Tone Room editor/librarian software for customizing amps and effects

The Vox VT20X's included Tone Room editor/librarian software puts an enormous amount of customizing power at your fingertips. You can tweak parameters to such a degree that it's almost like building your own instrument. When using Tone Room in conjunction with the VT20X, you gain access to a broad range of 20 realistic models of some of the most sought-after amplifiers around. Sixty preset programs, some modeled after the signature sounds of famous guitarists, unlock the full potential of the VT20X. Nearly everything is editable and storable, so once you craft the perfect tone, you can easily recall it later.

Vox VT20X Modeling Guitar Combo Amplifier Features:
  • VET (Virtual Elements Technology) delivers stunning sound quality
  • Valvetronix preamp uses a multi-stage tube circuit for real tube sound and feel
  • Unique analog circuit brings you authentic tube power amp performance
  • High-performance DSP delivers next-level sound quality
  • Unique chassis design provides unbelievably rich tone that exceeds its size
  • Tone Room editor/librarian for customizing amps and effects
  • 11 realistic amp models (20 when using the editor/librarian software)
  • 33 preset programs (60 when using the editor/librarian software)
  • 13 high quality onboard effects
Harness authentic tube performance with the Vox VT20X modeling guitar combo amplifier!

Additional Media

Guitar Amp Buying Guide
VT20X/ VT40X Modeling Guitar Amplifer Owner's Manual
Vox Releases Tone Room App for Android
Vox VT20X 1x8" Combo Amp Review by Sweetwater

Tech Specs

Type Hybrid
Number of Channels 4
Total Power 20W
Speaker Size 1 x 8"
Effects Yes, Chorus, Flanger, Phaser, Delay, Tremolo
Reverb Yes
Amp Modeling Yes
Number of Models 11
Preamp Tubes 1 x 12AX7
Inputs 1 x 1/4" (instrument), 1 x 1/8" (aux)
Outputs 1 x 1/8" (headphones)
USB 1 x USB Mini-B
Footswitch I/O Yes (VFS5 recommended footswitch)
Power Source 12V DC power supply
Height 13.66"
Width 16.14"
Depth 8.86"
Weight 16.09 lbs.
Manufacturer Part Number VT20X

Customer Reviews

Based on 13 reviews
Write your review

Quite Amazing

I am amazed at the variety and quality of tones this amp produces. There is a learning curve to the finer controls, but just changing the knob that selects amp models with default settings had me grinning ear to ear. I have the app that Vox provides for remote control, but finding a cable to go from the iPad to the mini USB port on the amp is a challenge. Overall, for the price, this amp covers a tremendous area of sonic bliss for me, and if it failed, I would definitely buy another one.
Music background: Lifelong amatuer

It Speaks to your Soul!

Wow... I have never owned a VOX; but worked with classic amps like the Fender Twin Reverb and Peavey Classic for many years. Well... this tiny little VT20X has probably the best "tone" of any amp I have ever owned! The tube tones coming out of this gem is nothing short of amazing! VOX has created the first "real tube" characteristics ever. Nothing else even comes close. Even though only the pre-amp is a tube circuit, the tones you can pull out of the VT20X just seem to speak to my soul! Don't let the physical size of the amp or the relatively tiny speaker fool you... VOX/Korg has put some kind of magic into designing this amp. If you have any doubts... look on Sweetwater.com and watch the 10 minute demo video by Mitch Gallagher. I'm glad I took a chance on this after seeing the other 5 star reviews. Stellar amp, this VOX! And all these years I thought it was just a Beatles thing.
Music background: Lifetime Music Pro


I got the 1x8 to replace an older Vox DA15. This thing sounds SO GOOD! The modulation is perfect I think. The Brit 800 and double rectifier are just plain mean! I've had some stuff over my lifetime, nothing spectacular like the Marshalls of old or Hughes and Kettner but I have spent thousands on amps before trying to find the sound I like (before getting out of live gigs) and this amp is by far the best sound and very best bang for the buck I've ever had.
Music background: Metal, Blues, Rock

VOX Rox!

One of my better investments, a whole lotta love inside this combo.

Great sound

Great sound in a 20 w amp. Loud enough for a bedroom or living room practice. I tried the 40 w and it was too loud for me. Modulation is very close to name brand amps. It feels and sounds very much like a Recto, British head and of course typical Vox combos. I obtained my best sounds by lowering the bass eq all the way down to zero. Very easy to tweak because the quality is excellent. You don't have to be messing with the eq.
See also: Combo Amps, Vox, Vox Guitar Combo Amps