The 33 preset programs (which expand to 60 when using the editor/librarian software) fully harness the capabilities of the VT20X and VT40X. Among these presets, you'll find several signature sounds of illustrious guitarists, allowing you to instantly invoke the iconic guitar tones from your favourite songs. Naturally, you're free to edit these programs according to your taste and store up to eight of your personal sounds. Optional footswitch

Everything about the Valvetronix is extremely intuitive. It utilises familiar guitar-amp controls (Gain, Volume, Treble, Middle, Bass, Presence and Master volume), augmented by a rotary Amp Type selector switch, plus dedicated effects sections that each have controls very similar to what you'd expect on a simple stomp box. The incredible sound quality you'll experience with the VT40X is driven by VET (Virtual Elements Technology). Instead of simply imitating the final output of the original amplifier, VET dives deeper, modelling right down to the intricate details of components and circuits. This way, VET faithfully mirrors the distinctive features of the original amp in its most authentic form. Multi-stage tube amp The Vox VT20X is not just another guitar amp. It's a comprehensive tool that offers guitarists a full palette of sounds and tones. From the clarity of high tones to the depth of lows, this amp ensures that every note you play resonates with precision and quality.The incredible sound quality you'll experience with the VT20X is driven by VET (Virtual Elements Technology). Instead of simply imitating the final output of the original amplifier, VET dives deeper, modelling right down to the intricate details of components and circuits. This way, VET faithfully mirrors the distinctive features of the original amp in its most authentic form. Multi-stage tube amp DELUXE CL、TWEED 4×10、VOX AC30、BOUTIQUE OD、VOX AC30TB、BRIT 800、BRIT OR MKII、DOUBLE REC、BOUTIQUE CL、BRIT 1959、BOUTIQUE METAL EFFECTS: To the right of this area on the control panel is the modulation effects section, where Chorus, Flanger, Phaser, Tremolo or Rotary effects can be chosen. These have Speed and Depth controls, with the option of controlling Speed via the external pedal, if connected. When the Rotary effect is being controlled in this way, the speed ramps up and down gradually, as it does with the real thing. Finally, there's the reverb, which is pretty limited in that you can't vary the decay time, but sounds absolutely right for use with a guitar amplifier. The Spring emulation is especially effective. All three variations have a hint of spring-like flutter, but on an electric guitar they sound quite authentic. Summing Up

These allow selection of class A or class AB, as well as shifting the bias voltage from normal to either cold or hot modes. Both buttons change the VT40X's dynamic response, affecting the Valve Reactor circuit, which uses a real 12AX7 valve to provide more realistic valve-driven tone and response.The VT50 followed a "chrome" theme, in fact, one magazine ad campaign from Vox used the theme, "Go Chrome or Go Home." Chrome plated Vox logos and a chrome plated steel grill highlighted this theme. The line output is fed through an integral speaker simulator. Unfortunately, I found that it didn't sound nearly as nice as the speakers, being thinner and a little buzzy. Even readjusting the EQ wasn't a complete solution. I also had problems with ground-loop hum as soon as I connected the amp into my mixer, so my conclusion is that the best way to record this amplifier is to mic it up. This is reasonably convenient, given the choice of power settings; even the 2W setting produces a powerful sound, with no loss of character. The Sound The blend of a meticulously sealed chassis along with a unique bass-reflex design ensures the efficient delivery of potent sound and a profound low-end, without generating any undesirable resonances. These amplifiers are capable of producing a sound of immense magnitude, significantly surpassing their physical size. Fine tune with Tone Room software I've had great results miking up my little Vox AD30VT guitar amp, and the VT40+ reviewed here is Vox's second upgrade to that model. This range of amps is so useful in the studio because their sound is virtually independent of the output level: there's a separate Power Level control, so if you want to get a big sound while driving only a couple of watts into the speaker, you can. These amps also include a speaker‑emulated headphone output that can be used for DI recording, and this mutes the speaker, which can be very handy in a domestic recording setup.

The AD15VT follows a "chrome" theme, in fact, one magazine ad campaign from Vox used the theme, "Go Chrome or Go Home." Chrome plated Vox logos and a chrome plated steel grill highlighted this theme. Effects are pivotal in moulding your sound. The VT20X and VT40X offer four distortion and dynamics effects for placement before the amp stage, four spatial-type effects such as flanger and delay, and four reverbs, totalling to 12 in-built effects. Alongside Noise Reduction, you can employ up to four effects concurrently. Furthermore, each effect comes with multiple parameters, offering you the liberty to instantly achieve your desired sound. A handy tap switch is also included, facilitating easy setting of delay time or modulation speed. Up to 30 presets This hybrid physical modelling, valve and solid-state design, presented in a classic AC30-style format, aims to offer the best of all possible worlds. How far does it succeed? The AD15VTis not loud enough for gigging, but it is a very versatile practice amp. Thepower amp level control that allows you to reduce the output wattage of the power amp that is common to the AD30VT, AD50VT, and AD100VT is not included in the AD15VT. The design of the 50 watt hybrid Valvetronix amplifier circuit remained unchanged from the AD50VT. Apower level control allowed one to adjust the output wattage of the power amp from 1 to 50 watts so that you can obtain overdriven power amp distortion even at low output levels.

The Brit amp co revamps an old favourite

There are four effects sections in all, the first of which emulates pedals connected before the amplifier, while the remaining three deal with modulation effects, delay and reverb. All that remains is a very simple patch-memory section, where up to eight banks of four programs each can be accessed. Pressing the Bank Up and Bank Down buttons together puts the amp into manual mode, so that what you dial up on the control panel is exactly what you get. A single numeric display shows the bank number -- not, as you might expect, numbered 1-8, but 1-4, then 1-4 again with a dot after the number. Four numbered buttons with status LEDs access the programs within the currently selected bank. In this area there's also a guitar tuner, which uses the patch buttons' status LEDs as a readout. Amp & Effect Types While modelling amps have yet to equal the amplifiers they set out to imitate (in terms of feel as well as sound), they're getting closer all the time. The Valvetronix comes closer than most, no doubt due to its ingenious hybrid design, which features a miniature valve power stage followed by a pair of 60W solid-state amplifiers. I found it much easier to get a usable and believable sound than I did from my old Line 6 Flextone combo, but then the Flextone is now quite an old design, and was also very much cheaper than the Valvetronix.