Our power attenuators will let you overload your power valves to get the glorious tone of a valve amp running at eleven, wherever you are.

HotBox 125i MkV

Our top-of-the line multi-stage, multi-mode inductive power attenuator. Two inductive modes plus resistive to unleash the natural nuance and sensitivity of your amplifier's true tone. Fixed Venue and Studio reduction levels for repeatable perfection. Variable Jam for everything else.

From £169

Click to

HotBox 120 MkV

Our mid-level power attenuator with more power handling. Variable Jam mode to fine tune your volume and fixed Studio mode for precisely repeatable results. Two speaker outputs so no more daisy-chaing cabs. Also works as a dummy load for recording.

From £119

Click to

HotBox 60 MkV2

Our entry-level power attenuator. Simple, rugged, portable, cost-effective. Studio mode for recording and using a big amp at a small gig. Practice mode for jamming by yourself.

From £79

Click to


The Quarterhorse is a speacialist divide-by-three attenuator that allows owners of massive valve amps of up to 360watts to enjoy the wide range of speaker cabs and attenuators aimed at the 120w and below market.

From £99

Click to

Dummy Load

The Dummy Load is exactly what it says on the tin: 150 watts of pure silence! Ideal for use if your amp has a built-in line out, or with one of our specialist DI recording solutions, for bedding in new valves and also for engineers running tests.

From £69

Click to

All content copyright AudioStorm 2008 - 2020