DISC Ashdown Geezer Butler Head Of Doom Signature Bass Head

Full Description

Made For 'The End'

The Ashdown Geezer Butler Head Of Doom Signature Bass Head was built for Black Sabbath's final farewell tour and had to deliver rock solid performance night after night. It was made with extensive talks between Ashdown and Geezer's long-standing tech, Terry Welty. Geezer was extremely specific with his requirements and needed an amp that was capable of covering a 50 year music career. The result is the Head Of Doom, delivering powerful performance and true rock tones.

666 Watts Of Beastly Power

The Head Of Doom Signature Bass Head pumps out 666 watts of power, with a tube preamp for warm saturation and a solid-state power section for authoritative, stage-covering sound. It is designed to accommodate input from both passive and active basses or, as Geezer Butler used on stage, the transformer isolated output from another Head Of Doom - ''More heads - more doom!''

Tonal Shaping Features

The Head Of Doom includes a versatile 3-band EQ on both the mid and bass controls, alongside the standard bass/mid/treble controls to give you focused tonal sculpting. This EQ is footswitchable allowing remote switching on-stage for instant tonal changes. A 'Doom' control adds increased pre-amp current to the 12AX7 valve for more overdriven grind and fatness. This level adjust can be preset and also switched via remote footswitch.

Sub Harmonic Doom And Level Controls

A 'Subs' switch gives the Head Of Doom an extra layer of octave-below harmonic content which can immediately thicken your sound and produce an earth-shattering wall of sound. The amp includes dual VU meters so you can get your input level and drive perfectly matched to the output level, and there are also dual inputs for either passive or active instruments.

Professional Connectivity

The Head Of Doom was designed to be used by Black Sabbath through multiple cabinets and with multiple heads acting as slaves for a master head. This is all made possible through the wealth of sound connection options on the back of the amplifier including a tuner output, line out, transparent FX loop and a line input for the connection of an external sampler or sound source. There is also an output muting function which still leaves the tune-out active for live silent tuning. Three transformer isolated outputs allow you to feed amps into further amps to drive multiple cabinets, or allow you to tap off a signal for recording purposes.

True Professional Setup

Building an amplifier for one of the greatest British rock bands will have been no easy feat, but Ashdown have succeeded in creating a truly professional solution providing authoritative tone and power. If the Ashdown Head Of Doom is good enough for Black Sabbath, you won't be disappointed of what you'll be able to achieve with it on stage or in the rehearsal room.

Features

• 666 watts of hybrid tube/solid state power
• Bass and mid controls each with an independent 3-band EQ
• Doom control for increased tube saturation
• Sub harmonic generator delivers octave-below pitches
• Dual VU meters for input and output level monitoring
• Passive and active inputs along with input level control to match your bass
• Multiple speaker outputs and connectivity options

Specification

• Controls: Input level, Doom, EQ, Bass (3-band), Mid (3-band), Treble, Subs, Pre/Post Di, Mute, Push flat/Shape, Passive/Active
• Power Output: 600watts RMS into 4 ohms
• Power Requirement: 115 - 230 Volts
• Type: Hybrid
• Speaker Configuration: 2 x Neutrik Jack/Speakon outputs
• Frequency Response: -3dB an 17Hz and 22kHz
• High Instrument Input: Impedance 3.9m Ohm / Input range 50mV to 15V p-p
• Low Instrument Input: Impedance 10k ohms / Input range Input range 300mV to 30V p-p
• Line Input: Impedance 22k Ohms / Input level 0dBu nominal
• Line Output: Impedance 10K Ohms / 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
• EQ: 9-Band
• Effects Send: Impedance 22K Ohms / Level 0dBu nominal
• Pre-Amp Tubes: 1 x 12 AX7
• H x W x D: (mm)127 x 431 x 279
• Weight: 31lbs / 14kg