Ashdown ABM 600w made in UK
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Essential Information About the Ashdown ABM 600 EVO IV UK Amp
Essential Information About the Ashdown ABM 600 EVO IV UK Amp
- 600 W of power to handle large stages while maintaining a comfortable headroom reserve.
- Hybrid architecture with a 12AX7 tube preamp for grain and warmth, and a power section designed for durability.
- Ultra-comprehensive control: 9-band graphic equalizer, ValveDrive, compression, EQ, and footswitchable Sub-Harmonics.
- ABM signature: iconic illuminated VU meter and made in UK hand-assembled construction.
Manufacturer Information
Ashdown
https://www.ashdownmusic.com
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Algam SAS
Email: contact@algam.net
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Historical Context and Positioning in the Range
Immediately recognizable thanks to its illuminated VU meter, the ABM series has established itself as a standard among bassists seeking a powerful, authentic, and reliable sound, equally credible in the studio and on stage. The ABM 600 EVO IV UK continues this tradition by offering a more powerful version designed for musicians who want more headroom and impact without sacrificing versatility. This "UK" edition also emphasizes local manufacturing, with hand assembly at Ashdown's headquarters in Essex.
Who This Amp Is For
The Ashdown ABM 600 EVO IV UK targets intermediate to professional bassists who need a robust and expressive head capable of covering demanding rehearsals, studio sessions, and sustained live performances. Its power reserve and tonal shaping options are particularly suited for contexts where the bass must remain clear in the mix: rock, pop, funk, modern metal, as well as reggae and dub thanks to the low-end reinforcement via Sub-Harmonics. If you play with multiple basses or low tunings, it's an excellent choice to maintain control and foundation.
Technical specifications
| Category | Bass amp head | Attenuator | No |
| Technology | Hybrid | Category | Amplifier |
| Input | jack | Number of channels | 1 |
| Output | 2 x jack, Cabinet 2 x Speakon | EQ | 9-band |
| External cabinet output | Yes | Color | Blue |
| Effects loop | Yes | Power output | 600 W |
| Footswitch input | Yes | Weight | 12.5 kg |
| Pre-amp tubes | 12AX7 | Dimensions (mm) | 146 x 489 x 336 |
Questions frequently asked
What power does the Ashdown ABM 600 EVO IV UK deliver?
This hybrid head delivers 600 W and features a 12AX7 tube in the preamp. This setup combines power reserve with the character of tube preamplification.
Can two speaker cabinets be connected to this Ashdown head?
Two Speakon speaker outputs are available for connecting external cabinets. The connectivity also includes two jack outputs.
Does the 9-band EQ allow sound correction according to the room?
The 9-band graphic equalizer provides precise frequency adjustment. It can be used to correct room resonance or modify the presence of low-mids. The settings mainly affect the bass foundation and attack.
Which functions can be controlled by the footswitch?
The footswitch connection allows controlling the ValveDrive, compression, EQ, and Sub-Harmonics. These sections can be switched via foot control.
Is the ABM 600 head rack-mountable?
The 2U format allows rack installation, with a rack-mount kit included. Its dimensions are 146 x 489 x 336 mm, weighing 12.5 kg.



