Duchess Family / V4 The Duchess Guitar Amp

V4 The Duchess Guitar Amp

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Powerful, ultra-compact and lightweight single-channel guitar amplifier for home, studio and live stages.

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The Duchess is a powerful, ultra compact amplifier. It has four valves in the front end, 180-watt power section, reverb and tremolo. Now it has been updated to include Two notes audio engineering Torpedo-embedded DynIR Virtual Cabinet technology, headphone out and our Valve Response Circuit VRC (™) technology.

The Duchess is all about vintage-style American cleans and British break-up. It’s a single channel amp perfect on a small cab or desktop, or for touring musicians who need a great-sounding, dependable pedal platform amp.


Volume & Master

Balance the front end preamp gain with the overall volume output. It will overdrive in the preamp slightly should you want that, but the main goal is higher-headroom tones and power.

Three-Band EQ

Powerful bass, middle and treble controls to shape your tone. These also have an effect on the gain character and drive levels – just like in any valve guitar amp.


Lush sounding digital reverb gives you ambience aplenty. Run it low for a subtle feeling of space, or max it out for washy, splashy hugeness!


From slow and pulsing to fast and staccato, we’re suckers one of the oldest effects in the book.Turn it on/off on the chassis, or remotely.

Series Effects Loop

Sits between the preamp and power amp. Run your time-based effects here for maximum clarity.

Two notes Technology

Two notes Audio engineering Torpedo-embedded DynIR Virtual Cabinet technology is onboard the Duchess. The Cab Sim XLR makes it super easy to take you Victory virtual cabinets anywhere. The presets have been created by Pete Honore for the Duchess.

The Two notes Cab sim signal can be routed to the line out and XLR or just the XLR.

Balanced Line Out and Headphone Out

Send a direct feed to a separate speaker simulator, front of house or wherever you like. Can be used with or without a speaker connected. The inbuilt headphone output makes silent practice quick and easy.

9V DC Power Output

Want to power some extra pedals and stick this on your board? We’ve included a 9V DC centre-negative output that will put out a maximum of 500mA. This is more than enough for the vast majority of drives, fuzzes and analogue delays and so on.

Two notes Technology

We have partnered with the incredibly talented folks at Two notes Audio Engineering to embed their incredible tech in our V4 Duchess Guitar amp.

Straight out of the box you have access to six presets created by Victory artist Pete Honore. These have been specifically created by Pete for the V4 Duchess guitar amp. There are ten Victory virtual cabinets included with the amp and a collection of microphones and positions to choose and build your own presets. All this can be accessed by plugging the V4 Duchess guitar amp into your computer, via Torpedo Remote (download for free from the Two notes website) – this is also where you access the power amp modes, rooms, studio-grade EQ and audio enhancer. Register your device with Two notes to gain access to a further two Two notes DynIR cabs.

The Story of the V4 amp valves!

The V4 amps have some interesting valves in them, to be specific 3 CV4014’s and 1 EC900. The CV4014’s were made in 1981 in the Mullard factory in England and then stored in a climate-controlled atmosphere deep underground,the depot was part of a cold-war nuclear bunker! They lay there until we decided to design some products from them!

The EC900 were made by E.I (Elektronska Industrija) in the former Yugoslavia under license from Phillips and Mullard, they were produced to an incredibly high standard so much so, we have included a 2-year valve warranty on the V4 amps.

V4 Duchess Update

The Duchess V4 amp was launched in 2020, then in 2022 we updated it with embedded Two notes, headphone output and Valve Response Circuit (VRC) this was timed with the launch of the V4 Copper, V4 Jack and V4 Sheriff.

Tech Spec

  • Format:

    Guitar amplifier head

  • Preamp valves:

    1 x EC900, 3 x CV4014

  • Power output:

    180W @ 4 ohms (approx 90W @ 8 ohms, 45W @ 16 ohms)

  • Power requirements:

    Mains IEC

  • Size:

    225(w) x 175(h) x 100mm(d) inc feet & knobs

  • Weight:

    1.7kg (3.75lbs)

  • Extra features:
    • Aluminium chassis
    • Reverb
    • Two notes Cab Sim Technology with 6 position preset control
    • Three band EQ
    • Series FX loop
    • Balanced DI out on TRS 6.3mm jack
    • Additional 9V DC power outlet for pedals etc (maximum total current 500mA, centre-negative)

User Guides

V4 The Duchess Guitar Amp

Your guide to the Victory V4 Duchess Amp.

Download user guide

Artists who use

Brent McSwiggan

Chris Buck Duchess

Chris Buck

Cardinal Black/Buck & Evans
kevin rowe v4 duchess

Kevin Rowe

Trever Keith

Face To Face

Nathan Foley


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