The ABM 1200 EVO IV teams the ABM preamp with a gut-rumbling 1200W power stage delivering huge bass tones for the biggest of stages. Whether live or in the studio ABM has become relied upon by many of the highest profile bassists in the world. Immediately identifiable on stages around the world thanks to it’s glowing VU meter. Over the past 20 years the Ashdown ABM range has become the industry standard for bass players in pursuit of real bass tone, versatility, power and tour proven reliability. Now in its fifth incarnation, ABM EVO IV pairs class-leading preamp sophistication with uprated powerhouse performance and an all-new 9-band EQ - available in three head versions rated at 300W, 600W and 1200W. Variable Valve Drive Plus – from zero to rock hero! Our Variable Valve Drive preamp section has also been upgraded in EVO IV. Delivering more current to the 12AX7 tube enables more drive and harmonic content than ever before, enabling players to dial in a sound from pristine clean, to the fattest, fullest bass overdrive currently available. The Drive level can 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, just got better! Bassists plugging into EVO IV will be greeted straight away by the flickering of the new Input VU meter, allowing them to quickly find the sweet spot for their instrument. From there, EVO IV features a sophisticated 9-band EQ, with familiar Bass, Middle and Treble controls and six sliders providing precision cut and boost at 100Hz, 180Hz, 340Hz, 1.3KHz, 2.6KHz and 5KHz. The EQ can be switched in via footswitch taking the player from a flat fretless sound to their favourite EQ setting instantly. The NEW 9-band EQ is a revelation of sonic perfection and will surprise older ABM users. One knob compressor Other ABM favourite features are retained in EVO IV, including Ashdown’s famous One Knob Dynamic Compressor sub octave note for huge bass tones. 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. Professional Connections Not that you’d expect any less, ABM is loaded with connectivity. A tuner output, Line out, 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. The ABM 1200 has dual 600 watt power sections with two Neutrik Jack/Speakon sockets for each power section. Each of the power sections has a minimum 4 ohm load allowing flexible partnering options with a dedicated range of ABM EVO IV cabinets. The ABM 1200 EVO IV can be used to power the following set ups. A single 8 ohm cabinet, a pair of 8 ohm cabinets, four 8 ohm cabinets, a single 4 ohm cabinet or lastly a pair of 4 ohm cabinets. 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. Specifications Power Output 600 + 600 Watts Power Requirement 115-230 Volts Speaker Outputs 4 x Jack/Speakon outputs Frequency Response -3dB @ 17Hz und 30KHz High Instrument Input Impedance 3.9m Ohms, input range 150mV Low Instrument Input Impedance 10k Ohms, input range 300mV - 40V p-p Line Input Impedance 22k Ohms, input level 0dBu nominal DI Output 600 Ohm balanced, Level 0dBu nominal Tuner Output Impedance 22k Ohms, Level 0dBu nominal Impedance Minimum 4 Ohms Per Side Effects Send Impedance 22k Ohm, Level 0dBu nominal Effects Return Impedance 22k Ohms, Input Level 0dBu Nominal Preamp Tubes 1 x 12AX7 H x W x D (mm) 174 x 645 x 357 Weight (kg) 18.6
So, it's 1997, and armed with a wealth of experience and headful of new ideas, Gooday kickstarts Ashdown Engineering to life with a simple vision – to build and 'engineer' a better bass amp.
With a nous for innovation and a flair for design, many would've jumped straight in, but Gooday was smart enough to first court feedback from some of the world's most respected bass players, including John Entwistle (The Who), Mark King (Level 42) and JJ Burnel (The Stranglers).
Inspired by the comments from these trusted advisors, Gooday focused his efforts on designing a new kind of bass amp, where superior tone was matched by unrivalled power and tour-grade performance in a truly engineered, uniquely-styled package.
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