Pricing and availability

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Sweetwater
4.5 (13)
$999.00
Guitar Center
4.0 (1)
$999.00
Reverb
4.0 (4)
$999.99 New
$979.00 Used
Musician's Friend
4.0 (1)
$999.00
Gear4Music
£759.00

Average Price: $996

High-end/Boutique

$200

$801+

Price Tier

Budget

Standard

High-end

Price History

Based on price data from 3 merchants for "Ashdown Engineering ABM-600 EVO IV 600-watt Bass Head". Prices shown reflect NEW condition. Tracking began Apr 2, 2026.

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Description

Ashdown Engineering ABM-600 Evo IV: A New Level of Bass Tone Brilliance

The Ashdown Engineering ABM-600 Evo IV bass amp head is the next evolution in a line of professional-grade amps trusted by renowned bassists worldwide. Boasting a staggering 600 watts of power, this amplifier delivers a bass tone that is nothing short of earth-shaking. Its upgraded preamp section and extended EQ section offer unparalleled tone-shaping flexibility, making it a versatile addition to any bass rig.

This amp isn't just about power, it's also about control. The variable drive technology in the preamp section allows you to fine-tune the amount of current flowing into the 12AX7 tube. This means you can achieve everything from crystal-clear tones to thick, overdriven sounds effortlessly. The 9-band EQ section provides meticulous control over your tone, and the familiar 1-knob compressor and sub-harmonic generator work in tandem to deliver a tight and full bass tone that stands out in any mix.

Built with the rigors of touring in mind, the Ashdown ABM-600 Evo IV is robust and reliable. It's not just about the sound, it's about the practical features too, like the DI with XLR connection and dedicated tuner output.

Key Features:

  • Powerful 600-watt bass amplifier head
  • Upgraded preamp section with variable drive technology for wide tonal range
  • Extended 9-band EQ section for precise tonal control
  • Hybrid solid-state and 12AX7 tube preamp
  • Built-in 1-knob compressor and sub-harmonic generator
  • DI output with XLR connection and dedicated tuner output
  • 4 secure speakON outputs for connecting speaker cabinets
  • Input level VU meter for monitoring levels
  • Ashdown sub-harmonic generator accurately tracks and reproduces main signal an octave lower

Product specs

Type Hybrid
Number of Channels 1
Total Power 600W
Compression Yes
EQ 9-band
Preamp Tubes 1 x 12AX7
Inputs 2 x 1/4" (instrument, line)
Outputs 2 x speakON, 2 x 1/4" (tuner, line)
Effects Loop Yes
Footswitch I/O 1 x 1/4" (EQ/compression/drive)
Footswitch Included No
Cooling System Internal Fan, Rear Air Vents
Power Source Standard IEC AC cable
Height 5.27"
Width 18.66"
Depth 12.4"
Weight 33.07 lbs.

FAQs

What type of tone can I expect from the Ashdown ABM-600 Evo IV bass amp head?

The Ashdown ABM-600 Evo IV provides a versatile tone with a warm and punchy sound, thanks to its hybrid design featuring a 12AX7 preamp tube. The 9-band EQ allows for precise tone shaping, making it suitable for a wide range of music styles.

Is the Ashdown ABM-600 Evo IV powerful enough for live performances?

Yes, with 600 watts of power, the Ashdown ABM-600 Evo IV is more than capable of handling live performances, even in larger venues. Its robust power output ensures that it can deliver clear and powerful bass tones on stage.

Does the Ashdown ABM-600 Evo IV have an effects loop?

Yes, the Ashdown ABM-600 Evo IV features an effects loop, allowing you to easily integrate external effects pedals into your setup for enhanced tonal flexibility.

Can I use a footswitch with the Ashdown ABM-600 Evo IV, and what functions does it control?

The Ashdown ABM-600 Evo IV has a footswitch input that allows you to control the EQ, compression, and drive functions. However, a footswitch is not included with the amp head and must be purchased separately.

How does the cooling system of the Ashdown ABM-600 Evo IV work?

The Ashdown ABM-600 Evo IV employs an internal fan and rear air vents for efficient cooling, ensuring the amp remains at an optimal temperature during extended use.

Andertons Music Co

Andertons Music Co

All About The Bass - Ashdown EVO IV ABM Amp & Cab

Video thumbnail for All About The Bass  - Ashdown EVO IV ABM Amp & Cab by Andertons Music Co

All About The Bass - Ashdown EVO IV ABM Amp & Cab

Andertons Music Co

Andertons Music Co

Video thumbnail for Ashdown Engineering - ABM 600 EVO IV Bass Head and cabs demo by Ashdown Engineering

Ashdown Engineering - ABM 600 EVO IV Bass Head and cabs demo

Ashdown Engineering

Ashdown Engineering

Video thumbnail for Ashdown ABM600 Evo IV bass head demo by Alberto Rigoni

Ashdown ABM600 Evo IV bass head demo

Alberto Rigoni

Alberto Rigoni

Video thumbnail for Pete Griffin plays through the Ashdown ABM-600 EVO 4 bass head- pick style by Ashdown Engineering

Pete Griffin plays through the Ashdown ABM-600 EVO 4 bass head- pick style

Ashdown Engineering

Ashdown Engineering

Video thumbnail for Ashdown ABM EVO IV by Ashdown Engineering

Ashdown ABM EVO IV

Ashdown Engineering

Ashdown Engineering

Video thumbnail for Pete Griffin plays through the Ashdown ABM-600 EVO IV bass head - Finger Style and a little slap by Ashdown Engineering

Pete Griffin plays through the Ashdown ABM-600 EVO IV bass head - Finger Style and a little slap

Ashdown Engineering

Ashdown Engineering

Reviews

PROS

  • Exceptional DI quality, both pre and post EQ

  • Versatile tone with hefty bottom end and mid-range clarity

  • Solid build and relatively light for its class

  • Warm tube overdrive without harshness

  • Powerful output, capable of handling any stage

  • 9-band EQ offers great tonal flexibility

  • Offers a lush, warm sound reminiscent of classic amps

  • Unique octave feature for creative soundscaping

  • Compatible with a variety of basses and playing styles

CONS

  • Fan noise can be noticeable

  • Some units may suffer from reliability issues, like overheating and power loss

  • Lacks a ground lift, which can be a drawback for some setups

Owner Insights

We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Ashdown Engineering ABM-600 EVO IV 600-watt Bass Head.

Features and functionality

  • The Ashdown ABM-600 Evo IV features a tube preamp and built-in octaver, which some users prefer for its specific tonal qualities over other brands like Darkglass or Aguilar.

    Source
  • The ABM-600 Evo IV's sub-harmonic generator adds an octave below the note, enhancing fullness and reducing the need for additional pedals.

    Source

Use cases and applications

  • Owners highlight that in environments with multiple high-gain guitars, the 600W model provides adequate headroom to maintain clarity and articulation.

    Source
  • The built-in foot-switchable effects allow users to simplify pedal boards, minimizing clutter and redundancy in setups.

    Source
  • Users suggest the ABM series for rock sounds, indicating its suitability for that genre.

    Source

Comparisons

  • The ABM-600 is compared favorably to the Bugera Veyron, with users noting the Ashdown’s superior headroom and sound quality despite the Veyron's higher power rating.

    Source
  • Owners who switched from Ampeg to Ashdown highlight the ABM-600's versatility and feature set as superior to previous Ampeg models they used.

    Source
  • The ABM series is recommended over lower-end Ashdown models like the Mag 300, which are described as having a muddy and indistinct sound.

    Source

User experience

  • Some owners report that the ABM-600 reaches a 'sweet spot' at half volume, where it opens up and provides a rich sound, unlike the 300W version.

    Source
  • It's noted that the ABM series can provide better tonal clarity and definition compared to the Ashdown Five Fifteen and similar lower-end models.

    Source

Build quality

  • Specific issues with Ashdown's quality control have been noted, with some units reportedly smoking or catching fire, raising concerns about reliability.

    Source

Value and pricing

  • The 600W version is considered a better long-term investment for an additional $200, offering flexibility for future needs without buying another amp.

    Source

Critic Reviews

Ashdown 20th Anniversary ABM-600-EVO IV and 410H cab review | MusicRadar

musicradar.com

The Ashdown ABM-600 Evo IV is a luxurious 20th-anniversary edition amp that dazzles with its hand-built quality and robust sound. Its build and design, reminiscent of high-end luxury cars, are matched by its reliable performance and versatile features. Musicians will appreciate the nine-band EQ and new variable valve drive preamp, offering a wide tonal range. The matching 410H cab, with its Celestion speakers and sturdy construction, complements the amp perfectly. However, the traditional speakers and solid-state design contribute to a heavier setup, which might not be ideal for all users. Overall, it's a stellar choice for those seeking both aesthetic and audio excellence.

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Based on 0 Reviews and 1 Rating

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Artist usage

Add artist
See how Colin Greenwood uses Ashdown Engineering ABM-600 EVO IV 600-watt Bass Head

Colin Greenwood

Bassist

Radiohead

...
Verified via Ashdown Engineering

Listed on Colin's official Ashdown artist page.

See how John Myung uses Ashdown Engineering ABM-600 EVO IV 600-watt Bass Head

John Myung

Bassist

Dream Theater

...
Verified via Ashdown Engineering

Listed on John's official Ashdown artist page.

See how Ross MacDonald uses Ashdown Engineering ABM-600 EVO IV 600-watt Bass Head

Ross MacDonald

Bassist

The 1975

...
Verified via Ashdown Engineering

Listed on Ross' official Ashdown artist page.

See how Stuart Zender uses Ashdown Engineering ABM-600 EVO IV 600-watt Bass Head

Stuart Zender

Bassist, Drummer

Jamiroquai

...
Verified via Twitter

Stuart Zender is seen testing the Ashdown Engineering ABM-600 Evo IV in a tweet from Ashdown Music's official account, highlighting his involvement with their gear.

See how Jon Stockman uses Ashdown Engineering ABM-600 EVO IV 600-watt Bass Head

Jon Stockman

Bassist

Karnivool

...
Verified via YouTube

Two of the units are seen several times throughout the video. The best shot is at 4:15-4:18.

See how Jimmy Bain uses Ashdown Engineering ABM-600 EVO IV 600-watt Bass Head

Jimmy Bain

Bassist

Dio

...
Verified via Ashdown Engineering

Listed on Jimmy's official Ashdown artist page.

See how Dougie Payne uses Ashdown Engineering ABM-600 EVO IV 600-watt Bass Head

Dougie Payne

Bassist

Travis

...
Verified via Ashdown Engineering

Listed on Dougie's official Ashdown artist page.

J

Jeremy Gomez

Bassist

Mineral

...
Verified via YouTube

In the YouTube video titled "Mineral - Slower (Austin, TX - 10/7/25)" by Scofflaw, at the 2:51 mark, Jeremy Gomez of Mineral can be clearly seen playing through an Ashdown Engineering ABM-600 Evo IV bass amplifier head during a live performance in Austin, Texas.

See how Jimmy Ashhurst uses Ashdown Engineering ABM-600 EVO IV 600-watt Bass Head

Jimmy Ashhurst

Bassist

The Cult

...
Verified via Ashdown Engineering

Listed on Jimmy's official Ashdown artist page.

See how Jack Bessant uses Ashdown Engineering ABM-600 EVO IV 600-watt Bass Head

Jack Bessant

Bassist

StringerBessant

...
Verified via Ashdown Engineering

Listed on Jack's official Ashdown artist page.

F

Freddy Herrera

Bassist

Everclear

...
Verified via Ashdown Engineering

He uses a Ashdown abm 600 evo.

Genre Usage

Based on how artists on Equipboard use this gear, it is most commonly found in the following genres.

Used With

Based on how musicians on Equipboard use Ashdown Engineering ABM-600 EVO IV 600-watt Bass Head, it is most commonly used with the following gear.

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