The ABM 900 EVO III is a 575+575 watts RMS bass amp head designed to satisfy both bass-purists and tech-heads alike. Three straightforward rotary tone controls provide 20dB of cut and boost at 60Hz, 660Hz and 5kHz, and are supplemented by two pairs of additional sliders giving 15dB cut and boost at 180Hz, 340Hz, 1.3kHz and 2.6kHz.

The EQ can be switched in/out by a footswitch, enabling players to go from a flat fretless sound to a boosted sound via a favourite EQ setting. A single input is switchable for passive and active instruments with a blend of solid state and dual triode tube preamps stages which can be preset and selected by footswitch, providing access to a massive range of clean, warm and overdriven tones.

Also footswitchable is the on-board compressor and the mighty Ashdown sub-harmonic generator which precisely tracks the main signal and reproduces it an octave lower. A sub-harmonic level control enables the player to add just the right amount of low-end reinforcement - everything from a subtle, thickening of the sound to unbridled, bone crushing tone.

The ABM 900 EVO III features a front-panel mounted balanced DI out with pre or post EQ switching, a sub-bass output, a tuner output, an FX loop and a line input for the connection of an external sampler or sound source. Output muting cuts the signal from the DI output but leaves the tuner output 'live', allowing the player to tune up in silence. A new upgraded power section has faster transient attack, more headroom and even less noise.

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Specifications:

• Power Output (RMS) 575W + 575W
• Power Requirement 230 / 115V
• Frequency Response -3dB at 17Hz and 30kHz
• Speaker Outputs Minimum impedance 4 Ohms
• High Instrument Input Impedance 3.9m Ohms, input range 150mV - 20mV p-p
• Low Instrument Input Impedance 10k Ohms, input range 300mV - 40V p-p
• Line Input Impedance 22k Ohms, input level 0dBu nominal
• Sub Output Impedance 1k Ohms, level 0dBu Nominal
• DI Output 600 Ohms balanced, level 0dBu nominal
• Tuner Output Impedance 22k Ohms, level 0dBu nominal
• EQ Bass +/-15dB @ 45Hz
• Middle +/-15dB @ 660Hz
• Treble +/-15dB @ 7kHz shelving
• Slider 1 +/-15dB @ 180Hz
• Slider 2 +/-15dB @ 340Hz
• Slider 3 +/-15dB @ 1.3kHz
• Slider 4 +/-15dB @ 2.6kHz
• Shape (Push Flat) +8dB @ 50Hz & 4kHz, -8dB @ 400Hz, filter slope - 6dB/octave
• Effects Send Impedance 22k Ohms, level 0dBu nominal
• Effects Return Impedance 22k Ohms, input level 0dBu Nominal
• H x W x D (mm) 158 x 610 x 355
• Weight (kg) 28

• U2 & Ashdown at Fordham University

  At the end of a week in New York City, U2 got up at the crack of dawn to play live for the students of Fordham University and Adam Claytons ever faithful Ashdown ABM rig was there to get the job done.

• U2 perform on the roof of BBC Broadcasting House

  Check out the Ashdown-filled footage here!

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  Serj Tankian(System Of a Down's Eclectic Frontman) played a rocking show at the London Forum last night...check out his gear.

• Ashdown Artists Storm Reading/ Leeds Festival 2008!

  Another year and another triumphant reading festival, with what must certainly have been one of the strongest line ups in years the festival rocked from start to finish and Ashdown were there onsite to take in the atmosphere and to catch up with old friends which is always a great way to end the summer!