Researched rig93% confidence

Killer Queen guitar tone

Queen · Brian May

Sheer Heart Attack (1974)

chimey British boost-driven crunch / multi-tracked bell-like lead

On the record

The rig Queen used

Researched from interviews, production write-ups and gear histories — not guessed.

Guitar

Brian May Red Special

Amplifier

Vox AC30 Top Boost (rhythm); John Deacon 'Deacy Amp' for the orchestral solo/harmony layers

Cabinet

Vox AC30 2x12 (Celestion Alnico Blue)

Microphone

Close dynamic on the AC30 (Trident Studios)

Signal flow

Signal chain

The order the original sound was built in. The exact settings get dialled for your own amp or modeller when you generate the tone.

  1. Brian May Red Special

    1

    source

    guitar
  2. Treble booster (Rangemaster-style / Deacon-built)

    2

    boost

    boost
  3. Vox AC30 Top Boost

    3

    amp

    amp
  4. Vox AC30 2x12 (Celestion Alnico Blue)

    4

    cab

    cab
  5. Close dynamic on the AC30

    5

    mic

    mic

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Evidence

Why we think this is right

Brian May's tone on 'Killer Queen' (Sheer Heart Attack, 1974) is exceptionally well documented: his homemade Red Special (Burns Tri-Sonic pickups) into a treble booster into a Vox AC30 Top Boost, cranked for natural valve overdrive. The multi-tracked 'orchestral' solo/harmony guitars were famously cut through John Deacon's home-built solid-state 'Deacy Amp' (also fed by a treble booster) for the bell-like sustain, while the AC30 carries the rhythm stabs. Sources converge on Red Special -> treble booster -> AC30 as the core recreatable rig; recorded at Trident Studios (prod. Roy Thomas Baker).

Sources

  • Guitar-magazine rig features on Brian May (Red Special / treble booster / AC30)
  • Brian May interviews on the Red Special, treble booster and the Deacy Amp
  • Sheer Heart Attack (1974) album & production notes (Roy Thomas Baker, Trident Studios)
  • Documented history of the John Deacon-built 'Deacy Amp'
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