Ashdown Engineering Amplifiers
ABM 500 Evo III
From the moment the VU meter flickers into life as you tailor the input level to your instrument, you know you're in for something special.
Seen on countless stages every night, backing some of the biggest bands in the world, ABM is the gigging professional's amp of choice, pairing class-leading preamp sophistication with powerhouse performance and every feature you need, whether you're working stadiums or the clubs.
The ABM 500 EVO III teams the ABM preamp with a gut-rumbling 575W power stage.
Variable Valve Drive – from zero to rock hero
Whatever tonal character you're seeking, the valve drive control can take you there. Engage it and set on zero for a pristine solid state preamp tone, or wind it up to increase the level of true valve overdrive that gets blended into the signal, taking you from a hint of hair to a fat overdrive.
The Drive level be preset and kicked in and out via footswitch, providing access to a huge range of clean, warm and overdriven tones.
The best EQ in the business
Imagine the simplicity of a traditional 3-band EQ but with the flexibility of a graphic equaliser...that's what the acclaimed ABM preamp delivers, and that's why it's as popular with bass-purists as it is with modern tone-shifters.
Designed to be as simple to use as a 3-band EQ but offer outstanding tonal shaping options, the ABM EQ features familiar Bass, Middle and Treble rotary controls and two pairs of additional sliders.
With the sliders set in the center position the three knobs function just like a classic 3-band EQ. But if you require more flexibility, the additional sliders allow you to fine tune the EQ in the regions the standard controls can't reach, providing a huge range of variation and allowing you to tailor the perfect sound for any gig.
The EQ can be switched in via footswitch taking you from a flat fretless sound to your favourite EQ setting instantly.
One knob compressor
Kick it in and this simple to use, great sounding compressor delivers a powerful, even sound, guaranteed to help your bass fill out any mix.
Sub-Harmonic Generator
Once heard – never forgotten. The ABM Sub-Harmonic generator adds an octave below the notes being played bringing fullness to any bass part. The Sub level is independently controllable, letting you dial in anything from a subtle hint of deep bass to a full-on subterranean funk.
Flexible Footswitching
Paired with our FS-4 footswitch (not included) the ABM comes alive for onstage use, enabling on-the-fly tonal gearshifts. With footswitchable Valve Drive, Compression, EQ and Sub Harmonic Generator, ABM puts dozens of sound combinations at your feet, without so much as an effect pedal in sight.
Professional Connections
Not that you'd expect any less, ABM is loaded with connectivity. A Sub-Bass output to feed the desk or an additional amp, a tuner output, transparent 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.
ABM Cabinets
However you choose to serve up your sound, whether you prefer the fat low-end of a 1x15” or the snap and punch of a 4x10”, Ashdown ABM cabs are tailored to give your ABM the best possible tone.
Available in 4x10”, 1x15”, 6x10”, 8x10” versions with Ashdown Blueline drivers, or choose the lighter weight NEO range with compact cabinets and SICA Neodymium speakers (available in 1x15” + horn or 2x10” + horn cabinets).
- Power Output | 575W
- Power Requirement | 230V
- Speaker Outputs | 2 x Jack/Speakon outputs
- Frequency Response | -3dB at 17Hz and 30Khz
- 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
- Tuner Output | Impedance 22K Ohms, Level 0dBu nominal
- DI Output | 600 Ohms balanced, level -20dBu nominal with ground lift
- Impedance | Minimum 4 Ohm
- EQ | Bass +/-15dB @ 45Hz Middle +/-15dB @ 660Hz Treble +/-15dB @ 7kHz shelving slider 1 +/-15dB @180Hz Slider 2 +/-15dB @340Hz
- Effects Send | Impedance 22k Ohm, level 0dBu nominal
- Effects Return | Impedance 22K Ohm, input level 0dBu nominal
- Sub Output | Impedance 1k Ohm, Level 0dBu Nominal
- Pre-amp Tubes | 1 x 12AX7
- H x W x D (mm) | 134 x 474 x 315
- Weight (kg) | 14
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