Proaudio Sound Press Magazine - November 2023

Variable Valve Drive Plus: The Variable Valve Drive preamp section in the EVO IV has been enhanced to deliver more drive and harmonic content. From pristine clean tones to the fattest bass overdrive available, the Drive level can be easily preset and engaged or disengaged via footswitch, granting access to a wide range of tonal possibilities. The Ultimate 9-Band EQ: A sophisticated 9-band EQ greets bassists plugging into the EVO IV. With precision cut and boost controls at various frequencies, the EQ allows for instant tonal shifts. This sonic perfection offers precision in tonal adjustments and is an impressive leap from previous ABM models. Classic Features Enhanced: The ABM EVO IV retains the famed One Knob Dynamic Compressor and the Sub- Harmonic Generator, perfect for enriching bass tones with added depth and power. Professional Connections and Flexibility Loaded with professional connectivity, the ABM EVO IV boasts a tuner output, Line out, transparent FX loop, and a Line Input. Its flexible pairing options via Neutrik Jack/Speakon sockets provide versatile cabinet partnering options.

Key Specifications: • Power Output: 600 Watts • Power Requirement: 115-230 Volts Footswitchable Valve Drive, Compression, EQ, and Sub Harmonic Generator provide a plethora of sound combinations, eliminating the need for extra pedals. • Speaker Outputs: 2 x Jack/Speakon outputs • Frequency Response: -3dB @ 17Hz and 30KHz • High Instrument Input: Impedance 3.9m Ohms, input range 150mV • Low Instrument Input: Impedance 22k Ohms, input level 0dBu nominal • Line Input: Impedance 22k Ohms, input level 0dBu nominal • D.I. Output: 600 Ohm balanced, Level 0dBu nominal • H x W x D (mm): 146 x 489 x 336 • Weight (kg): 12.5 The Ashdown ABM EVO IV is a testament to Ashdown's ongoing commitment to redefine bass amplification, catering to the varied demands of contemporary bassists. Flexible Footswitching Capability Paired with the FS-4 footswitch, the ABM EVO IV becomes an on-stage powerhouse, allowing for real-time tonal gearshifts.

sound press November 2023 |

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