The Tech 21 Killer Blue Wail is a Tech 21 wah pedal, currently around $219. Close alternatives include the Dunlop DB1B Dimebag Crybaby From Hell Wah and the Roland PW-3 WAH. It pairs well with the Marshall JTM45 45W Tube Guitar Amp Head and the Fender Bassman Combo Amp.
Tech 21 Killer Blue Wail
Tech 21 · pedal
The Tech 21 Killer Blue Wail is a wah pedal from Tech 21 (New York, USA), delivering a blue-LED voiced variant of the Killer Wail analog wah with a differently tuned frequency sweep for a slightly different wah character suited to players wanting an alternative wah voicing.
What stands out
“Its standout strength is the alternatively voiced analog wah character as a variant of the Killer Wail”
— from the community notes
“Strengths: Alternative voicing analog wah at Tech 21 New York quality”
— from the reviews
“delivering a blue-led voiced variant of the killer wail analog wah with a differently tuned frequency sweep for a slightly different wah character suited to players wanting an alternative wah voicing”
— from the listing
“The Tech 21 Killer Blue Wail is a wah pedal from Tech 21 (New York, USA), delivering a blue-LED voiced variant of the Killer Wail analog wah with a differently tuned frequency sweep for a slightly different wah character suited to players w…”
— from the listing
“Blue-tuned frequency sweep for a different wah character”
— from the reviews
- wah
- analog
- frequency
- lead
- rock
- funk
- alternative
- alternative wah voicing
Price updated Oct 24, 2026
Genres the Tech 21 Killer Blue Wail is commonly used in
Amps that pair well with the Tech 21 Killer Blue Wail
Marshall JTM45 45W Tube Guitar Amp Head
amplifier
12% matchMarshall JTM45 45W Tube Guitar Amp Head leans toward transparent, and that's a real, usable character to pair with
Comes later in the signal chain
Fender Bassman Combo Amp
amplifier
12% matchWhat Fender Bassman Combo Amp brings here leans toward crunchy — that's worth building a pairing around
Comes later in the signal chain
Pedals that stack with the Tech 21 Killer Blue Wail
Electro-Harmonix Green Russian Big Muff
Electro-Harmonix
8% matchWhat Electro-Harmonix Green Russian Big Muff brings here leans toward full — that's worth building a pairing around
Comes later in the signal chain
ZVEX Fuzz Factory
Zvex
8% matchWhat ZVEX Fuzz Factory brings here leans toward fuzzy — that's worth building a pairing around
Comes later in the signal chain
Empress Echosystem
Empress
6% matchKeep Empress Echosystem after Tech 21 Killer Blue Wail in the signal chain, where it won't crowd Tech 21 Killer Blue Wail — goes in the amp's FX loop (or last, into a clean amp)
Comes later in the signal chain
Alexander Pedals Radical Delay
Alexander Pedals
6% matchAlexander Pedals Radical Delay's pristine voice goes after Tech 21 Killer Blue Wail in the signal chain — it's not there to compete with Tech 21 Killer Blue Wail's own analog warmth character — goes in the amp's FX loop (or last, into a clean amp)
Comes later in the signal chain
Cheaper alternatives
Tech 21 Killer Wail v2 Wah
Tech 21
81% similarity“delivering a blue-LED voiced variant of the Killer Wail analog wah with a differently tuned frequency sweep”
Modtone MT-Wah
Modtone
66% similarityShared character: wah, alternative
Morley Classic Wah
Morley
64% similarityShared character: wah
Mooer Wahter
Mooer
63% similarityShared character: wah
Friedman Gold-72 Wah
Friedman
62% similarityShared character: wah, alternative
Vox V863-CA Wah
Vox
62% similarityShared character: wah
Boutique & premium upgrades
Similar charactersee all similar tone character →
Dunlop DB1B Dimebag Crybaby From Hell Wah
Dunlop
66% similarityShared character: wah, lead
Roland PW-3 WAH
Roland
65% similarityShared character: wah
Dunlop "Dimebag" Signature Wah Crybaby
Dunlop
65% similarityShared character: wah, lead
Rocktron Classic Wah
Rocktron
63% similarityShared character: wah
Cry Baby Dunlop Cry Baby Junior
Cry Baby
63% similarityShared character: wah
Cry Baby Dunlop Cry Baby 535Q Multi-Wah
Cry Baby
62% similarityShared character: wah
See all alternatives to the Tech 21 Killer Blue Wail (cheaper + boutique) →
Questions people ask
What are good alternatives to the Tech 21 Killer Blue Wail?+
The closest matches in character are the Dunlop DB1B Dimebag Crybaby From Hell Wah, the Roland PW-3 WAH, the Dunlop "Dimebag" Signature Wah Crybaby. Budget picks: Tech 21 Killer Wail v2 Wah, Modtone MT-Wah, Morley Classic Wah. Boutique upgrades: Zvex Super Seek Wah, Dunlop EC95 Eric Clapton Cry Baby Wah.
What pairs well with the Tech 21 Killer Blue Wail?+
Strong matches from rig and tone-complementarity evidence: Marshall JTM45 45W Tube Guitar Amp Head, Fender Bassman Combo Amp, Electro-Harmonix Green Russian Big Muff — Marshall JTM45 45W Tube Guitar Amp Head leans toward transparent, and that's a real, usable character to pair with.
How much does the Tech 21 Killer Blue Wail cost?+
Around $219 (live listing price, updated Oct 24, 2026).
Compare
- vs Dr. Scientist Dusk Analog Filter
- vs Dunlop EC95 Eric Clapton Cry Baby Wah
- vs Zvex Ooh Wah 2 Custom Handpainted