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Product Description

Ashdown ABM 500RC EVO III is a 575 watts RMS bass amp head. RC stands for rack mountable chrome. The amp features footswitchable eq and a function that allows you to blend the solid state and valve preamps. The nice thing about these amps is obviously the sound but they are dead easy to use. You don't need a degree in technology to operate one.
The Ashdown ABM designs are based on 575 single or dual power amps. This series has been around for 15 years and has become the pro players most popular amp of choice due to their great design, ruggedness and affordability.
The design's features include Valve Drive, 7-band EQ, Sub-Harmonics, and on-board compression. The cabinets are made of top quality birch ply covered in buffalo leather cloth with chrome corners. The heads and combos are complimented with a selection of cabinets. Ashdown drivers are specifically designed for a deep controlled bass response but still maintaining great response on mid and top frequencies.

Specification
For those requiring an integrated solution, the ABM 500RC EVO III is a rack-mounting version of the standard ABM 500 EVO III Head, with a stunning, polished chrome panel. 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 ABM500RC 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.

Power Output (RMS) 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) 134 x 474 x 315
Weight (kg) 14