Introducing the UK-OBM Series

Clean, Compact, UK-Built Bass Amplification

Ashdown Engineering is proud to introduce the UK-OBM Series - a new range of UK-built bass heads and combos designed for players who value simplicity, portability, and clean, confident tone.

Built and hand-assembled in Britain, and finished in Ashdown's bold Ice Blue, the UK-OBM Series brings a refreshed identity to Ashdown's compact amplification category. By focusing on essential features, intuitive control, and reliable power, the UK-OBM offers a no-nonsense solution for bassists who want great tone without unnecessary complexity.

Straightforward Power, Built in the UK

At the heart of the UK-OBM Series is a commitment to clarity and practicality. Drawing on the philosophy of Ashdown's OriginAL lineage, the UK-OBM range refines that approach with upgraded UK construction, modern styling, and road-ready performance in ultra-compact formats.

Whether you're rehearsing, gigging, recording, or travelling light, the UK-OBM Series is designed to deliver consistent, dependable results in real-world playing situations.

UK-OBM Bass Heads: Compact and Authoritative

The UK-OBM Series launches with two lightweight bass heads: the UK-OBM-500 and Uk-OBM-300.

Despite their compact footprint, these heads deliver 500 watts and 300 watts respectively, offering clean headroom and punchy response suitable for a wide range of playing environments.

Both models feature a responsive 5-band EQ for flexible tone shaping, along with Ashdown's classic Pre-Shape circuit for instant, mix-ready contouring. Practical connectivity includes a DI output for live and studio use, an FX Loop for pedal integration, and auto-voltage operation for worldwide touring.

Designed for bassists who want to plug in and play, the UK-OBM heads provide articulate, uncluttered tone with minimal setup and maximum reliability.

UK-OBM Combos: Practical Power in a Single Package

To complement the heads, the UK-OBM Series also includes two UK-built combo amplifiers, offering professional performance in self-contained, gig-ready formats.

Finished in Ice Blue and housed in Charcoal Tweed with Silver Weave grille cloth, the UK-OBM combos combine modern Ashdown styling with durable, road-ready construction.

UK-OBM-C112T-500

A powerful 500-watt 1x12" kickback combo, featuring a premium Sica 12" speaker and an angled cabinet design for improved personal monitoring. Ideal for players who need strong stage presence without external cabinets.

UK-OBM-C112T-300

A lightweight 300-watt 1x12" combo, designed for rehearsals, small venues, studio work, and home use. Compact, easy to transport, and equipped with the same tonal controls as the heads, it delivers practical volume from a small footprint.

A Refined Approach to Compact Bass Amplification

Where the UK-RBM Series focuses on expanded tone sculpting and feature-rich versatility, the UK-OBM Series is intentionally refined, prioritising clean tone, simplicity, and everyday usability.

Every model in the range is hand-built in the UK, combining modern engineering, lightweight practicality, and unmistakable Ashdown character into a dependable, musician-focused amplification solution.

Designed for Bassists Who Just Want to Play

For players who want an amplifier that travels easily, sets up quickly, and delivers clean, powerful sound night after night, the UK-OBM Series offers a modern, UK-built answer.

Simple by design, confident by nature, and built to perform wherever you plug in - the UK-OBM Series continues Ashdown's commitment to practical, professional bass amplification.