2. HEADS

Ashdown ABM 600 EVO IV Head

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The Ashdown ABM 600 EVO IV Head is the new version of one of the world's most popular bass heads. A redesigned Input VU meter gives you precision over the input level of your instrument. Ashdown have included a comprehensive 9-band EQ on the ABM 600 EVO IV. 3 knobs control the Bass, Middle and Treble, while six sliders give you further control to boost/cut frequencies of 100Hz, 180Hz, 340Hz, 340Hz, 1.3KHz, 2.6KHz and 5KHz. The EQ can be engaged and disengaged with a footswitch (sold separately).

Ashdown have upgraded the Variable Valve Drive preamp in the ABM 600 EVO IV to channel more current to the 12AX7 tubes. Thanks to this you have more control than ever over how hard you 'push' the valves, letting you go from mellow clean tone to full-bore overdrive. Uprated transformers in the poweramp give you more headroom than other bass heads at a similar wattage. Other features have been kept on the EVO IV, such as a DI out, tuner out, Sub out, FX loop and line input.

For more information on the ABM range & Ashdown Bass amplification contact Mike on 01273 665427 -

  • Power Output 600 Watts
  • Power Requirement 115 - 230 Volts
  • Speaker Outputs 2 x Jack/Speakon outputs
  • High Instrument Input Impedance 3.9m Ohm, input range 150mV -
  • Low Instrument Input Impedance - 10k ohms Input range 300mv to 40v p - p
  • Line Input Impedance 22k Ohms / Input level 0dBu nominal
  • DI Output 600 Ohms balanced / Level -20dBu nominal With Ground Lift
  • Tuner Output Impedance 22k Ohms, level 0dBu nominal
  • Impedance Minimum 4 Ohms
  • Effects Send impedance 22k Ohm, Level 0dBu nominal
  • Effects Return impedance 22k Ohms, Input Level 0dBu Nominal
  • Pre-Amp Tubes 1 x 12 AX7
  • H x W x D (mm) 135 x 474 x 320
  • Weight (kg) 12.5


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For further information on our finance options, including representative examples, please click here. Finance is subject to status, terms and conditions apply.

GAK.CO.UK LTD is registered in England and Wales 04578270. Registered office: 30 - 34 North Street Hailsham East Sussex BN27 1DW GAK.CO.UK LTD acts as a credit broker and only offers credit products from Secure Trust Bank PLC trading as V12 Retail Finance. GAK.CO.UK LTD is an appointed representative of The Guitar Amp and Keyboard Centre Limited which is authorised and regulated by the Financial Conduct Authority. GAK.CO.UK LTD FCA registration number is 731400. The Guitar Amp and Keyboard Centre Limited FCA registration number is 684977. Credit provided subject to age and status

V12 Retail Finance Limited. Registered in England and Wales 4585692. Registered office: One Arleston Way, Solihull, B90 4LH. Authorised and regulated by the Financial Conduct Authority. Our FCA reference number is 679653.

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