Ashdown RM-500 Rootmaster EVO III 500-Watt Bass Head - Open Box

Delivering 500 watts of classic Ashdown sound in a lightweight, portable head, the Rootmaster 500 EVO III combines a flexible EQ, Sub Harmonic Generator, Compression, and Valve Emulated Drive with pro features like an Analogue Cab Sim DI output, balanced D.I., and monitor filters. This makes it a rugged, reliable choice for stage and studio alike.

500 Watts of Authority

Precision Power for Every Stage

The Rootmaster 500 EVO III delivers a formidable 500 watts of output alongside a wide frequency response and responsive 5-band EQ. It gives bassists full control of their sound, ensuring tone that resonates both on stage and in the studio. Powerful yet lightweight, it's designed to meet the demands of modern players without compromise.

Analogue Warmth Meets Digital Progess

Classic Ashdown Tone, Modern Innovation

Though it marks a new chapter in Ashdown's advancements, the Rootmaster 500 EVO III stays true to the brand's signature analogue warmth. Featuring the Ashdown Sub Harmonic Generator for earth-shaking lows, a built-in Compressor for dynamic control, and Valve Emulated Drive for grit and warmth, it delivers the Swiss army knife versatility that Ashdown amps are known for.

Reliable, Rugged, and Ready Anywhere

Designed for the Global Player

Built with the gigging bassist in mind, the RM-500 EVO III accommodates power requirements from 115-230V, making it a true globetrotter. Two Neutrik Speakon/Jack outputs ensure solid, roadworthy connectivity, while its frequency response of 17Hz-30kHz captures the entire bass spectrum with unmatched clarity. High/low instrument inputs and a line input make it flexible for a wide variety of basses and sources.

Front-of-house Ready

Connectivity That Covers It All

The Rootmaster 500 EVO III provides multiple DI options to fit any live or studio situation. A balanced D.I output delivers pristine signal for front-of-house, while a dedicated tuner output simplifier stage setups. One the rear panel, an XLR DI with post-EQ and post-effects routing ensures your sound is always mix ready, no matter the setup.

Shape your tone to perfection

Next-Generation Cab Simulation

Ashdown's Analogue Cab Sim DI takes flexibility to new heights, offering filters that emulate the legendary ABM cabinets. Bassists can tailor their sound with enclosure options (Ported for extended lows, Sealed for tighter punch), speaker voicing (10" for mid-focused precision, 15" for deep clarity), and a Horn option that adds a high-end lift about 5kHz. This level of customisation empowers players to sculpt their ideal sound for any performance.