Killer Queen amp settings — Fender Mustang LT25
The Queen guitar tone for “Killer Queen”, dialed in for a Fender Mustang LT25 with a Epiphone SG Standard. Studio version, Sheer Heart Attack (1974)
Red Special guitar (bridge+middle in series) → Dallas Rangemaster Treble Booster → Vox AC30 Normal channel cranked, with room mic ambience and short slapback delay
| Knob | Setting (0–10) |
|---|---|
| Gain | 5 |
| Bass | 5 |
| Mid | 7 |
| Treble | 6 |
| Presence | 4 |
| Reverb | 2 |
| Master | 7 |
01Mustang LT25 onboard Treble Booster effect (or Overdrive set as clean boost)
Essential for the Brian May tone — use the amp's built-in boost/OD effect set bright with low gain to simulate the Rangemaster. Without this, the tone will lack bite and compression.
02Mustang LT25 onboard Delay
Very short slapback (40-80ms) simulates the room mic ambience on the original recording. Single repeat, low mix.
Your SG's humbuckers are hotter and darker than May's Red Special in series mode, so I dropped gain from the original's full-crank setting to 5 and pushed mids to 7 to recover the vocal midrange. The Mustang LT25's Vox model is brighter than a real AC30 Normal channel, so treble sits at 6 rather than higher. The onboard boost effect is critical — May's entire tone hinges on the Rangemaster pushing the amp.
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These settings are for a Fender Mustang LT25. ToneAdapt matches any song to whatever amp, guitar and pedals you own — first match is free.
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