The Story
Please note: All UK-built products are made to order. The approximate lead time is 20 days.
For more information, please email: [email protected]
The Ashdown UK-RBM-500 (Rootmaster Bass Magnifier) is a UK-built, Ice Blue lightweight 500 watt bass head crafted for players who want punchy performance in a highly portable format. Equipped with Sub-Harmonic Generator, smooth Compression, expressive Valve-Emulated Overdrive, a useful FX Loop, and both DI and Ashdown’s Analogue Cab Sim DI outputs, it delivers refined tone-shaping options for stage, studio, and silent practice through its dedicated Headphone Out.
Compact but impressively capable, the UK-RBM-500 offers the clarity, warmth and reliability that define the RBM series.

Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.

Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.

Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.
Description
Please note: All UK-built products are made to order. The approximate lead time is 20 days.
For more information, please email: [email protected]
The Ashdown UK-RBM-500 (Rootmaster Bass Magnifier) is a UK-built, Ice Blue lightweight 500 watt bass head crafted for players who want punchy performance in a highly portable format. Equipped with Sub-Harmonic Generator, smooth Compression, expressive Valve-Emulated Overdrive, a useful FX Loop, and both DI and Ashdown’s Analogue Cab Sim DI outputs, it delivers refined tone-shaping options for stage, studio, and silent practice through its dedicated Headphone Out.
Compact but impressively capable, the UK-RBM-500 offers the clarity, warmth and reliability that define the RBM series.
























