The Morley REX Brown OLD Blue WAH is a Morley wah pedal, currently around $253.31. Close alternatives include the Dunlop Low Rider and the MXR 105Q Crybaby Bass Wah. It pairs well with the Ampeg SVT-CL and the Phil Jones Bass Compact Plus BG-450.
Morley REX Brown OLD Blue WAH
Morley · pedal
The Morley Rex Brown Old Blue Wah is the Rex Brown signature wah pedal from Morley (El Monte, California), designed in collaboration with Rex Brown (bassist of Pantera, Down, and Kill Devil Hill), delivering a bass-optimized Morley optical wah with extended low-frequency sweep for deep bass wah expression. The Old Blue Wah captures the bass wah character Rex Brown used in his Down and Kill Devil Hill recordings.
What stands out
“In the signal chain wah sits first”
— from the community notes
“Use-case wise it suits metal and heavy rock bass players who want bass wah at Morley Rex Brown quality”
— from the community notes
“The Morley Rex Brown Old Blue Wah is the Rex Brown signature wah pedal from Morley (El Monte, California), designed in collaboration with Rex Brown (bassist of Pantera, Down, and Kill Devil Hill), delivering a bass-optimized Morley optical …”
— from the listing
“delivering a bass-optimized morley optical wah with extended low-frequency sweep for deep bass wah expression”
— from the listing
“The Morley Rex Brown Old Blue Wah delivers Rex Brown signature bass-optimized optical wah at Morley quality for bass players who want deep bass wah expression with Rex Brown character”
— from the community notes
- wah
- bass
- optical
- frequency
- heavy rock
- rex brown character
- vintage
- extended low frequency sweep
Price updated Oct 24, 2026
Genres the Morley REX Brown OLD Blue WAH is commonly used in
- Metal
- Funk
cited
Inferred from shared tonal signals, not a stated genre tag.
Amps that pair well with the Morley REX Brown OLD Blue WAH
Ampeg SVT-CL
Ampeg
9% matchInto the SVT-CL's growling tube stage, the REX Brown Wah's optical sweep pushes toward real heavy-rock weight.
Comes later in the signal chain
Phil Jones Bass Compact Plus BG-450
Phil Jones
9% matchPhil Jones Bass Compact Plus BG-450's own high headroom character is the real reason this is worth trying
Comes later in the signal chain
Mesa/Boogie Stiletto Deuce Stage II
Mesa Boogie
tonal matchComes later in the signal chain
Put Mesa/Boogie Stiletto Deuce Stage II after Morley REX Brown OLD Blue WAH
Friedman Small Box 50W EL34 Amp Head
Friedman
tonal matchComes later in the signal chain
Put Friedman Small Box 50W EL34 Amp Head after Morley REX Brown OLD Blue WAH
Hughes & Kettner Coreblade
Hughes & Kettner
tonal matchComes later in the signal chain
Put Hughes & Kettner Coreblade after Morley REX Brown OLD Blue WAH
Friedman PT-20
Friedman
tonal matchComes later in the signal chain
Put Friedman PT-20 after Morley REX Brown OLD Blue WAH
Friedman Pink Taco Head
Friedman
tonal matchComes later in the signal chain
Put Friedman Pink Taco Head after Morley REX Brown OLD Blue WAH
Mesa/Boogie JP-2C John Petrucci Signature 60/100-Watt
Mesa Boogie
tonal matchComes later in the signal chain
Put Mesa/Boogie JP-2C John Petrucci Signature 60/100-Watt after Morley REX Brown OLD Blue WAH
Pedals that stack with the Morley REX Brown OLD Blue WAH
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
Tech 21 SansAmp
Tech 21
8% matchWhat Tech 21 SansAmp brings here leans toward bright — that's worth building a pairing around
Comes later in the signal chain
Caroline Guitar Company Meteore
Caroline Guitar Company
6% matchPut Caroline Guitar Company Meteore after Morley REX Brown OLD Blue WAH in the signal chain, where it won't crowd Morley REX Brown OLD Blue WAH — goes in the amp's FX loop (or last, into a clean amp)
Comes later in the signal chain
Dunlop - MXR Carbon Copy Deluxe Analog Delay
Dunlop
6% matchPut Dunlop - MXR Carbon Copy Deluxe Analog Delay after Morley REX Brown OLD Blue WAH in the signal chain, where it won't crowd Morley REX Brown OLD Blue WAH — goes in the amp's FX loop (or last, into a clean amp)
Comes later in the signal chain
MXR Badass Variac
MXR
tonal matchComes later in the signal chain
MXR Badass Variac goes after Morley REX Brown OLD Blue WAH in the chain
JHS Pedals JHS Cheeseball
JHS Pedals
tonal matchComes later in the signal chain
Put JHS Pedals JHS Cheeseball after Morley REX Brown OLD Blue WAH
Footloose Effects Red Light
Footloose Effects
tonal matchComes later in the signal chain
Put Footloose Effects Red Light after Morley REX Brown OLD Blue WAH
Death By Audio Destruction
Death By Audio
tonal matchComes later in the signal chain
Put Death By Audio Destruction after Morley REX Brown OLD Blue WAH
Cheaper alternatives
Rocktron Utopia Bass Wah
Rocktron
60% similarityShared character: wah, bass
Mission Engineering ReWah Pro Bass
Mission Engineering
57% similarityShared character: wah, bass
Morley Classic Wah
Morley
92% similaritysimilar tone character
Dunlop "Dimebag" Signature Wah Crybaby
Dunlop
91% similaritysimilar tone character
Morley Mini Switchless Classic Wah
Morley
91% similaritysimilar tone character
Dunlop IM95K Iron Maiden Killers Cry Baby
Dunlop
91% similaritysimilar tone character
Boutique & premium upgrades
Similar charactersee all similar tone character →
Dunlop Low Rider
Dunlop
59% similarityShared character: wah, bass
MXR 105Q Crybaby Bass Wah
MXR
59% similarityShared character: wah, bass
Dunlop DB1B Dimebag Crybaby From Hell Wah
Dunlop
92% similaritysimilar tone character
MXR WA90
MXR
92% similaritysimilar tone character
Cry Baby Dunlop Cry Baby Standard GCB95
Cry Baby
92% similaritysimilar tone character
Morley PFW2 Power Fuzz Wah
Morley
91% similaritysimilar tone character
See all alternatives to the Morley REX Brown OLD Blue WAH (cheaper + boutique) →
Questions people ask
What are good alternatives to the Morley REX Brown OLD Blue WAH?+
The closest matches in character are the Dunlop Low Rider, the MXR 105Q Crybaby Bass Wah, the Dunlop DB1B Dimebag Crybaby From Hell Wah. Budget picks: Rocktron Utopia Bass Wah, Mission Engineering ReWah Pro Bass, Morley Classic Wah. Boutique upgrades: Dunlop JTC95 Justin Chancellor Signature Wah, Dunlop EC95 Eric Clapton Cry Baby Wah.
What pairs well with the Morley REX Brown OLD Blue WAH?+
Strong matches from rig and tone-complementarity evidence: Ampeg SVT-CL, Phil Jones Bass Compact Plus BG-450, Mesa/Boogie Stiletto Deuce Stage II — Into the SVT-CL's growling tube stage, the REX Brown Wah's optical sweep pushes toward real heavy-rock weight..
How much does the Morley REX Brown OLD Blue WAH cost?+
Around $253.31 (live listing price, updated Oct 24, 2026).