He always used a treble booster which, along with the AC30 and his custom 'Deacy Amp' transistor amp, built by Queen bass player John Deacon, went a long way in helping to create many of his signature guitar tones.
El folosit, întotdeauna, un treble booster, care împreună cu AC30 și amplificatorul Deacy Amp, construit de basistul trupei Queen, John Deacon, a ajutat foarte mult la crearea multor tonuri ale chitarei sale.