Amplifier Heads for Bass

Take control with the Ashdown ABM 1200 EVO IV electric bass amp head. This British hybrid head unleashes 1200W of stage power, tempered by the smoothness of a 12AX7 preamp. Sculpt every detail with 9-band EQ and three built-in effects. A good model for bassists who lead.

ARTICLE N° 114639
Volume isn't everything, character is. The Ashdown ABM 1200 EVO IV Head imposes its authority with 1200 watts, and it's its original voice that makes the difference. This hybrid bass amp head fuses the vibrant soul of a 12AX7 tube preamp with the relentless punch of a solid power section. It doesn't scream, it charms with its power.

Your sound becomes a material that you shape. The 9-band EQ acts like a chisel to sculpt frequencies with shocking precision. The Shape switch lifts the midrange with a flick of the wrist and the effects loop integrates your favourite pedals into the perfect path. Every setting is a deliberate choice.

The three built-in processors are your invisible assets. Activate the Sub Harmonics and the low E strings will shake the floor. The Tube Drive produces a raucous, warm grain that's a far cry from digital distortion. The one-knob dynamic compressor stabilises your attack for a consistent sound, from aggressive slap to legato lines.

With its four Speakon outputs and XLR DI output, this head can be connected to any professional setup, from the most demanding studio to the biggest stage. Made in the UK, it's built to withstand the rigours of touring. More than an amp, it's the command centre of your tone.
Tuner output
 Yes
DI output
 Yes
Control pedal input
 Yes
Effects
 3 multi-FX processors
External effects loop
 Yes
RMS power (W)
 1200
Speaker output
 Yes
Frequency setting
 9 band
Weight
 18,6 kg
Aux input
 Yes
Country of production
 United Kingdom
Tube circuits
 Yes
  • Ashdown ABM 1200 EVO IV Head
  • Electric bass amp head
  • Technology : Hybrid
  • Power : 1200 W
  • Minimum impedance : 4 Ohms
  • Preamp : 1 tube 12AX7
  • Equalisation : 9 bands
  • Number of effects: 3
  • Integrated effects: Sub Harmonics / Tube Drive / Dynamic Compression
  • Compressor: One Knob Dynamic Compressor
  • Effects loop: Yes
  • Inputs : Instrument jack / Aux jack / Footswitch / Effect loop jack
  • Outputs: XLR DI / Tuner jack / Line out jack / 4 x Speakon
  • Switches: Passive / Active / Flat / Shape / 3-band / 9-band / Mute / Pre-Post EQ
  • Compatible footswitch : FS-4 (optional)
  • Pedalboard included: No
  • Headphone jack : No
  • Manufacturing : United Kingdom
  • Use : Stage and studio
  • Dimensions (L × H × W): 645 × 174 × 357 mm
  • Weight: 18.6 kg
Ashdown - ABM 1200 EVO IV Head
Ashdown - ABM 1200 EVO IV Head
1 249,17 € excl VAT
including eco-part : 0,07 €
Resupply
Arrival expected on Nov 3, 2026
Guarantee 3  years
Fred
Fred
Eric
Eric
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