The Knight Audio Technologies Kat-STB is a boost pedal. Close alternatives include the Spaceman Effects Atlas IV and the Spaceman Atlas III. It pairs well with the Vox AC30 Guitar Combo Amp and the Swart MOD 84.
Knight Audio Technologies Kat-STB
Unknown brand · pedal
The Knight Audio Technologies Kat-STB is a treble booster purpose-engineered for the specific interaction between Brian May's Red Special guitar (with its Burns Tri-Sonic pickups) and a cranked Vox AC30. It boosts upper midrange and cuts muddy low-end from the Tri-Sonic pickups, feeding a tight, focused signal into the AC30 that drives the amp's natural compression and breakup at full volume, producing Queen-era chimey, harmonically rich lead tone that a standard overdrive pedal can't replicate through direct amp interaction alone.
What stands out
“It boosts upper midrange and cuts muddy low-end from the Tri-Sonic pickups, feeding a tight, focused signal into the AC30 that drives the amp's natural compression and breakup at full volume, producing Queen-era chimey, harmonically rich le…”
— from the listing
“• [Pro] Produces more distortion and compression at AC30 full gain than any overdrive pedal could — the boost interacts with the amp's natural character directly”
— from the community notes
“• [Rig] Placed between Red Special and AC30; the treble boost tightens low-end, adds gain, and activates the AC30's natural compression at full volume”
— from the community notes
“[Pros] ✓ Precisely engineered for Brian May's Red Special Burns Tri-Sonic pickups — tightens low-end and enhances harmonic sparkle before the amp ✓ Drives Vox AC30s into natural compression and breakup at full volume — a distinct interactio…”
— from the reviews
“• [Con] Designed specifically for AC30 interaction — the upper-mid emphasis can become harsh through already bright or solid-state amplifiers”
— from the community notes
Trade-offs
“• [Sound] Boosts upper midrange and cuts muddy bass from the Red Special's Burns Tri-Sonic pickups — feeding the AC30's natural breakup with a tight, focused signal”
— from the community notes
- full
- natural compression
- low end
- upper midrange
- breakup
- harmonically rich
- lead
- chimey
Genres the Knight Audio Technologies Kat-STB is commonly used in
- Blues
cited
Inferred from shared tonal signals, not a stated genre tag. - Indie Rock
cited
Inferred from shared tonal signals, not a stated genre tag. - Alternative
cited
Inferred from shared tonal signals, not a stated genre tag. - Rock
cited
Inferred from shared tonal signals, not a stated genre tag. - Classic Rock
cited
Inferred from shared tonal signals, not a stated genre tag. - Metal
cited
Inferred from shared tonal signals, not a stated genre tag.
Amps that pair well with the Knight Audio Technologies Kat-STB
Vox AC30 Guitar Combo Amp
Vox
50% match“purpose-engineered for the specific interaction between Brian May's Red Special guitar (with its Burns Tri-Sonic pickups) and a cranked Vox AC30”— from the knight-audio-technologies-kat-stb listing
Comes later in the signal chain
Swart MOD 84
Swart
34% matchSwart MOD 84 leans toward lush, and that's a real, usable character to pair with
Comes later in the signal chain
Ampeg V-4
Ampeg
tonal matchComes later in the signal chain
Into a transparent tone, Ampeg V-4 brings a pull toward mid-forward that's missing
Marshall Vintage Modern 2466
Marshall
tonal matchComes later in the signal chain
Marshall Vintage Modern 2466 leans this transparent tone toward low gain, which it doesn't make on its own
Egnater Tweaker 88 Head
Egnater
tonal matchComes later in the signal chain
Egnater Tweaker 88 Head leans this transparent tone toward low gain, which it doesn't make on its own
Synergy SL2 Module
Synergy
tonal matchComes later in the signal chain
Into a transparent tone, Synergy SL2 Module brings a pull toward high gain that's missing
Ampeg BA 108
Ampeg
tonal matchComes later in the signal chain
Ampeg BA 108 leans this transparent tone toward mid-forward, which it doesn't make on its own
Bad Cat Lynx 50
Bad Cat
tonal matchComes later in the signal chain
Into a transparent tone, Bad Cat Lynx 50 brings a pull toward high gain that's missing
Pedals that stack with the Knight Audio Technologies Kat-STB
Nobels ODR-1
Nobels
24% matchfills a frequency gapFills in a frequency range the other side doesn't cover, instead of piling more onto what's already there. (transparent → mid-forward)
Into a transparent tone, Nobels ODR-1 brings a pull toward mid-forward that's missing
Comes later in the signal chain
Beetronics Overhive
Beetronics
23% matchInto a transparent tone, Beetronics Overhive brings a pull toward medium gain that's missing
Comes later in the signal chain
Mooer Trelicopter
Mooer
20% matchsits in the right chain slotPlaced for where it does its job cleanly in the chain, not for a tonal interaction with the anchor.
Keep Mooer Trelicopter after Knight Audio Technologies Kat-STB in the signal chain, clear of Knight Audio Technologies Kat-STB's own gain stage
Comes later in the signal chain
Xotic SP Compressor
Xotic
17% matchfills a frequency gapFills in a frequency range the other side doesn't cover, instead of piling more onto what's already there. (transparent → mid-forward)
Xotic SP Compressor leans toward smooth, and that's a real, usable character to pair with
Comes earlier in the signal chain
Alexander Pedals Now We Are Ghosts Reverb
Alexander Pedals
13% matchsits in the right chain slotPlaced for where it does its job cleanly in the chain, not for a tonal interaction with the anchor.
Keep Alexander Pedals Now We Are Ghosts Reverb after Knight Audio Technologies Kat-STB in the signal chain, clear of Knight Audio Technologies Kat-STB's own gain stage — goes in the amp's FX loop (or last, into a clean amp)
Comes later in the signal chain
Eventide Modulated Delay
Eventide
12% matchsits in the right chain slotPlaced for where it does its job cleanly in the chain, not for a tonal interaction with the anchor.
Keep Eventide Modulated Delay after Knight Audio Technologies Kat-STB in the signal chain, clear of Knight Audio Technologies Kat-STB's own gain stage — goes in the amp's FX loop (or last, into a clean amp)
Comes later in the signal chain
Source Audio L.A. Lady
Source Audio
tonal matchComes later in the signal chain
Source Audio L.A. Lady leans this transparent tone toward low gain, which it doesn't make on its own
Carl Martin DC Drive V3
Carl Martin
tonal matchComes later in the signal chain
Into a transparent tone, Carl Martin DC Drive V3 brings a pull toward low gain that's missing
Alternativessee all similar tone character →
Spaceman Effects Atlas IV
Spaceman
58% similarityShared character: boost
Spaceman Atlas III
Spaceman
58% similarityShared character: boost, distortion
Wampler Tumnus Deluxe
Wampler
56% similarityShared character: treble, boost, bass
J. Rockett Archer
pedal
56% similarityShared character: gold sparkle, treble, bright
Vox CT-03BT
Vox
56% similarityShared character: solid state, volume, boost
Marshall Guv'nor
Marshall
55% similarityShared character: bright, distortion, full
Tech 21 SansAmp Character Plus Mop Top Liverpool
Tech 21
54% similarityShared character: boost, treble, full
MXR Super Badass Distortion
MXR
54% similarityShared character: treble, bright, boost
Dallas Tuxedo Treble Booster
pedal
53% similarityShared character: solid state, treble, bright
AnalogMan Beano Boost
Analog Man
53% similarityShared character: treble, natural, bright
Dallas Rangemaster Treble Booster
Dallas
52% similarityShared character: signal, treble, bright
Ibanez TS9 Tube Screamer
Ibanez
52% similarityShared character: volume, solid state, boost
See all alternatives to the Knight Audio Technologies Kat-STB (cheaper + boutique) →
Questions people ask
What are good alternatives to the Knight Audio Technologies Kat-STB?+
The closest matches in character are the Spaceman Effects Atlas IV, the Spaceman Atlas III, the Wampler Tumnus Deluxe.
What pairs well with the Knight Audio Technologies Kat-STB?+
Strong matches from rig and tone-complementarity evidence: Vox AC30 Guitar Combo Amp, Swart MOD 84, Ampeg V-4 — “purpose-engineered for the specific interaction between Brian May's Red Special guitar (with its Burns Tri-Sonic pickups) and a cranked Vox AC30”.