Legacy Bass Amplification

ABM 500 RC EVO III 575W chrome-finished rack-mount bass amplifier head

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ABM 500 RC EVO III

Front view - Click to enlarge [+]

For those requiring an integrated solution, the ABM 500RC EVO III is a rack-mounted version of the standard ABM 500 EVO III Head, with a stunning, polished chrome panel. Three straightforward rotary tone controls provide 20dB of EQ cut and boost at 60 Hz, 660 Hz and 5 kHz. These controls are supplemented by two pairs of additional sliders giving 15dB cut and boost at 180 Hz, 340 Hz, 1.3 kHz and 2.6 kHz. The EQ can be switched in/out by a footswitch, enabling players to go from a flat fretless sound to a boosted sound by taking advantage of a favorite EQ setting. A single input is switchable for passive and active instruments with a blend of solid state and dual triode tube preamps stages.  This can also be preset and selected via 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 tones. The ABM500RC EVO III features a front-panel mounted balanced DI output 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.

ABM 500 RC EVO III Specifications

Power Output 575 Watt
Power Requirement 230 Volt
Speaker Outputs 2 x Jack/Speakon outputs
Frequency Response -3dB bei 17Hz und 30kHz
High Instrument Input Impedance 3.9MOhms / Input range 150mV - 20V p-p
Low Instrument Input Impedance 10KOhms / Input range 300mV - 40V p-p
Line Input Impedance 22k Ohms, input level 0dBu nominal
Sub Output impedance 1k Ohm, level 0dBu Nominal
DI Output 600 Ohm
Tuner Output Impedance 22k Ohms / Level 0dBu nominal
Impedance Minimum 4 Ohm
EQ Bass +/-15dB @ 45Hz Middle +/-15dB @ 660Hz Treble +/-15dB @ 7kHz shelving Slider 1 +/-15dB @ 180Hz Slider 2 +/-15dB @ 340Hz Slid
Effects Send Impedance 22k Ohm, level 0dBu nominal
Effects Return impedance 22k Ohms / Level 0dBu nominal
Pre-Amp Tubes 1 x 12AX7
H x W x D (mm) 88 x 482 x 293
Weight (kg) 12