Vox VT40X 40-watt 1x10" Modeling Combo Amp

40-watt Hybrid 1x10" Modeling Guitar Combo Amplifier with DSP
Vox VT40X 40-watt 1x10
Vox VT40X 40-watt 1x10
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Vox VT40X 40-watt 1x10" Modeling Combo Amp
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Authentic Tube Tone with High-performance DSP

The Vox VT40X 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 VT40X, 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 VT40X modeling guitar combo amplifier delivers an unbelievably powerful tone that far exceeds its modest size.

Vox VT40X 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 VT40X, 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 VT40X'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 VT40X with an enormous level of processing power. You'll hear the difference in the VT40X'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 VT40X'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 VT40X, 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 VT40X. Nearly everything is editable and storable, so once you craft the perfect tone, you can easily recall it later.

Vox VT40X 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 VT40X modeling guitar combo amplifier!

Additional Media

Guitar Amp Buying Guide
Vox Releases Tone Room App for Android
Vox VT40X Modeling Combo Amp Demo by Sweetwater

Tech Specs

Type Hybrid
Number of Channels 4
Total Power 40W
Speaker Size 1 x 10"
Effects Yes, Chorus, Flanger, Phaser, Delay, Tremolo
Reverb Yes
EQ 3-band EQ
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 headphone
USB 1 x USB Mini-B
Footswitch I/O Yes (VFS5 recommended footswitch)
Power Source 19V DC power supply
Height 15.91"
Width 18.19"
Depth 13.66"
Weight 20.94 lbs.
Manufacturer Part Number VT40X

Customer Reviews

Based on 17 reviews
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Well worth it!

All right I give this a five-star only because it's my preference and this is exactly what I was looking for. The current modeling amp I have now which is a line 6 75 watt spider 4. And it gives off of very muffled sound no matter how many times you mess with the controls it does not sound clean. I play a lot of thrash and speed metal but I also like to dabble in the Blues. The Vox has a very clean and Clear Tone to it that really lights up a room. Now the added bonus to it is the tone room app you can get on your iOS device or Android. Just make sure you have the right cables because I read a lot of reviews of people having trouble accessing it. It works just fine for me matter of fact I use my charging cable from my PlayStation 3 and it seems to work just fine. And it's a lot of fun in the tone room because there is an endless supply of amps and pedal sounds you can gather even create yourself. I've only dabbled in a little bit of it but like I said I cannot stop playing the clean tone on here it sounds fantastical! I was looking for something lightweight easy to carry around when I travel from time to time especially when I go to my buddies house it's a perfect amp for us to jam out with, and I don't have to Lug around this giant Line 6 anymore. I've only been playing guitar for a little over four years and I put a lot of work into it so I do know a thing or two about gear. I mean nothing sounds like a marshall stack Half Stack a great tube amp but plain and simple you can't look that thing around everywhere so what modeling amp works just fine. A plus Sweetwater did a great job once again for me

Great amp for anything.

I'm not concerned with such things as "Does it really sound like this or that." I do my own thing and I want it to sound good. I'm getting great sound out of this amp. I really like most of the presets even. I just got a Gretsch Jet Baritone guitar and the combo blew my mind.This certainly gets loud enough to play small to medium venues so I really thing the VT40X is the choice middle ground. Working pros playing medium to large venues maybe should go with the 100w but those venues have PAs so the 40w could be mic'ed.One little thing that might be helpful. I found that when changing between amp models the volume jumps to a preset level and not where the volume is physically set. But a quick jiggle of the volume knob resets it where it should be. So I just change the amp model and juggle the volume know in one move before playing a note and there is never a surprise.Super pleased with this. I'm going to garage sale my Marshall Valvestate 20.


Sweetwater delivered this amp today - that was fast! - and after several hours of jamming with it, I have to say it's one of the best little practice amps I've ever had the pleasure of using. The combination of tubes with state of the art digital modeling provides an array of great tones to please any guitarist. The Dumble tone is terrific - both clean and distorted. The other amp tones are authentic and sound great too. The reverb and assorted effects all sound good as well. I haven't used the modeling software yet but I'm looking forward to creating custom tones with my iOS devices. The Aux In jack is sweet to use to jam along with an iOS (or Android or some other) device. In summary, I'm deeply impressed with Vox VT40X amp and would encourage guitarists looking for a great little practice amp to check one out. At $249, it seems like a bargain.
Music background: Playing for 40 years and loving every nanosecond of it

Upgraded from VT40+

I've only had this for a day and used it for a few hours so far to get the hang of the settings, but so far I'm glad I decided to sell my old VT+ and get this one as I'm trying to get back in the swing of things again. Equally important, I can't say enough positive things about Sweetwater and Jordan who helped me with this order. In fact, they were incredibly helpful in fixing a UPS error and keeping me out of a bind. I live close to NY where there are Sam Ash and GCs all over, but I'm glad I ordered from here and will do it again.Here are some initial thoughts:- You really need to download the tone room app to get the most out of this. So many more models there and presets. Without this functionality I wouldn't have bought it based on the initial models.- you need to buy a separate USB camera adaptor plug and if you connect it to iPhone/iPad a separate Apple camera adaptor to to use the software.- the instructions aren't great for tone room. Total trial and error. I still don't know which presets I can change permanently or if I can only save them as user settings, and if so can you adjust the prameters that way.- I Think the models sound better on he VTX and definitely like the way you use the pedals.Awesome amp and seller!
Music background: Hobby

Best $ I Ever Spent

I bought mine used but i had to leave a review somewhere. I've been playing for 15 years, but the past 10 I've been a giant gear snob and collected everything i could get my hands on. Tone chasing, we've all heard of it. Well I've owned over 50+ tube amps throughout the years and this my friends is the best sounding modeling amp I've ever played. Better than the kemper and axe fx if you ask me. Better than bias and amplitube or any of the vst modelers. It has the organic tube feel, especially noticeable when you dial back the volume knob. The only downside is that you have to hook it up to another device to access the majority of your amp models in vox's "toneroom" program. They could have made them all available with the 3 stage preset button no one will ever use. And some control variables are only accessible through the program as well. You can at least save 8 of your favorite tones to foot switchable channels. No effects loop or extension cab output. Still an outstanding amp and probably the last amp I'll ever buy (maybe I'll get the 100w version) i have 7 big name amps that are currently up for sale now because this thing covers it all. Whoever said this is a beginner's amp is downright crazy. Go buy one, take it home, mess around with it for a week. Return it if you don't like it, but i guarantee you'll fall in love like i did. There's only happy endings with this amp. Hats off you to vox. This one flew way under the radar. Whoever doesn't try one of these now is going to kick themselves later
See also: Combo Amps, Vox, Vox Guitar Combo Amps