KAT STB (Strap-Mount Treble Booster) – Knight Audio Technologies
Fryer/May Deluxe Treble Booster | General Guitar Gadgets
The BMG Treble Booster Classic
Mike Ryde - Brian May
KAT Brian May treble booster classic - YouTube
Treble Boosters – dsgb
Treble booster - Wikipedia
Brian May's Treble Booster – Ground Guitar
Treble Boosters – dsgb
Brian May Guitars - DECADES OF LEGENDARY TONE - The amazing, multi-era KAT/BMG Treble Booster Classic, inspired by Brian May and absolutely essential for nailing his distinctive sound, is now back in