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Ashdown - Bass Amplifiers

Ashdown RM 420 Head

420-watt bass head with 5-band EQ and sub-harmonic generator

£135.00

Free UK delivery by 23 - 25 Jul

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THERE IS ONLY ONE.

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ABOUT THIS PRODUCT

Ashdown RM 420 Head - Bass Amplifier - Fair

Why This One

  • Fair condition - a fully working unit at a great price
  • Fully tested - all applicable functions verified working
  • 420-watt solid-state head with 5-band EQ and onboard sub-harmonic generator.
  • Discontinued model - second-hand is now the only way to get one.

Condition: Fair

This Ashdown RM 420 Head is a fair-condition bass amplifier. It has passed our 10-point functional test, with 4 item(s) not applicable to this unit. Note: The VU meter does not respond to input signal. Please review all photos carefully, as they provide an accurate representation of the cosmetic condition of the product.

What's Included

  • Ashdown RM 420 Head
  • No additional accessories included

About This Model

The Ashdown Rootmaster RM 420 is a solid-state bass amplifier head delivering 420 watts of power in a compact, lightweight enclosure weighing just 4 kg. Its feature set is built around a 5-band rotary EQ - covering Bass (100Hz), Lo Mid (220Hz), Middle (660Hz), Hi Mid (1.6kHz), and Treble (7kHz) - each with ±15dB of adjustment, alongside a Deep boost and a one-touch Shape switch for instant classic Ashdown tones. On-board processing includes a one-knob compressor, a footswitchable tube-emulated overdrive, and a footswitchable sub-harmonic generator for added low-end depth. Connectivity covers high- and low-impedance instrument inputs, a line input for backing tracks, balanced DI output, tuner output, effects loop, and two speaker outputs accepting a minimum 4-ohm load. The RM 420 is a discontinued model, making used examples the primary route to ownership.

A great opportunity to own a Ashdown RM 420 Head at this price point.

General

BrandAshdown
ModelAshdown RM 420 Head - Bass Amplifier - Fair
CategoryBass Amplifiers
ConditionFair

Condition

This Ashdown RM 420 Head - Bass Amplifier - Fair has been inspected and set up by our workshop. Every item is a single, one-off piece, photographed as it is so you know exactly what you are buying.

Condition guide

Our inspection process

  • 01

    Workshop inspection

    Checked by a specialist, not just a technician. Body, hardware and cosmetics visually assessed for wear, damage and authenticity.

  • 02

    Function tested

    Controls, connections and electronics tested at the bench to confirm everything works as it should.

  • 03

    Prepared for use

    Cleaned and set up where needed so it arrives ready to use straight out of the box.

  • 04

    Photographed & documented

    Every angle, mark and detail captured in high resolution so you know exactly what you are buying.

  • 05

    Double-boxed dispatch

    Re-checked before packing, then carefully packed and sent tracked and signed-for.

4.9
211 reviews onGoogle

"Buying was very quick and easy, delivery was confirmed a few hours later and was fully tracked and on time. Highly recommended!"

Matthew Williams

Bought a subwoofer

"Great to deal with. Quick responses and fair pricing on my old Marshall amp."

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"No hassle selling equipment, good service throughout the entire process."

Blair Trowbridge

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After you buy

  1. 01

    Order placed

    Payment confirmed instantly. You'll get an email receipt and tracking link to follow.

  2. 02

    Workshop pack

    We re-check the inspection, photograph the packing, and carefully box for safe transit.

  3. 03

    Tracked dispatch

    Signed-for courier across the UK. Most orders arrive within 2 working days.

  4. 04

    30-day returns

    Not the one for you? Send it back within 30 days for a full refund.

GET IT NOW

There is only one. Free express UK delivery, 30-day returns, and our quality assurance behind every order.

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Ashdown

Ashdown RM 420 Head - Bass Amplifier - Fair

£135.00