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The Ashdown 25th Anniversary ABM-400 Limited Edition is a professional bass amplifier head produced to celebrate 25 years of Ashdown Engineering. Combining the renowned ABM tonal platform with commemorative styling and UK-built craftsmanship, this amplifier represents a special edition of one of Ashdown's most successful bass amplifier designs.
Delivering 400 watts of power, the amplifier features Ashdown's signature valve-driven preamp section, providing warmth, punch and dynamic response. The extensive tone-shaping facilities include graphic equalisation, onboard compression and sub-harmonic enhancement, allowing bassists to tailor their sound for a wide range of musical applications.
Built to professional standards, the ABM-400 Anniversary Edition offers the rugged construction and reliability that have made Ashdown a staple of the bass amplification market. The limited-edition status and UK manufacture add further appeal for enthusiasts and collectors.
Whether used for rehearsal, recording or live performance, the 25th Anniversary ABM-400 delivers the distinctive Ashdown character that has been trusted by bass players for decades.
| Model | 25th Anniversary ABM-400 |
| Manufacturer | Ashdown Engineering |
| Amplifier Type | Bass Amplifier Head |
| Power Output | 400 Watts RMS |
| Preamp | Valve Driven |
| EQ | Graphic Equaliser |
| Compression | Built-In Compressor |
| Sub Harmonics | Variable Sub-Harmonic Generator |
| Effects Loop | Yes |
| DI Output | Balanced XLR |
| Speaker Outputs | Speakon and Jack |
| Country of Manufacture | United Kingdom |