Ashdown ABM 900 EVO II

The ABM 900 EVO II is a 575+575 watts RMS bi-amp 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, and flat/shaped by 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 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 II 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.

Specifications:

• Power Output: 575 watt + 575 watt
• 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
• Stereo Line Input: Impedance 22k Ohms, input level 0dBu nominal
• Effects Return: Impedance 22k Ohms, input level 0dBu Nominal
• Tuner Output: Impedance 22k Ohms, level 0dBu nominal
• Sub Output: Impedance 1k Ohms, level 0dBu Nominal
• Effects Send: Impedance 22k Ohms, level 0dBu nominal
• DI Output: 600 Ohms balanced, level 0dBu nominal
• Speaker Outputs: Minimum impedance 4 Ohms
• Shape (Push Flat): +8dB at 50Hz and 4kHz, -8dB at 400Hz, filter slope - 6dB/octave
• Bass: +/-15dB at 45Hz
• Middle: +/-15dB at 660Hz
• Treble: +/-15dB at 7kHz shelving
• Slider 1: +/-15dB at 180Hz
• Slider 2: +/-15dB at 340Hz
• Slider 3: +/-15dB at 1.3kHz
• Slider 4: +/-15dB at 2.6kHz
• Frequency Response: -3dB at 17Hz and 30kHz
• Power Requirements: 230 / 115V
• H x W x D (mm): 205 x 660 x 385
• Weight (kg): 28

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