The Ashdown Pro-FX Two-Band Boost is an Ashdown boost pedal, currently around $34.99. Close alternatives include the Aguilar OBP-2TK and the Behringer BDI21. It pairs well with the Swart Star-Base 1 and the Hiwatt Park P18LH 'Little 45' Handwired18W.
Ashdown Pro-FX Two-Band Boost
Ashdown · pedal
The Ashdown Pro-FX Two-Band Boost is a compact bass boost pedal combining two distinct boost types in a single enclosure: a full-range boost and a treble boost, each with independent gain controls. This dual-boost configuration allows players to add overall volume lift with the full-range boost while simultaneously enhancing top-end articulation and presence with the treble boost. The pedal also introduces a touch of midrange when the treble boost is engaged, helping to cut through a band mix. Designed in the UK for bass players who need flexible clean boosting.
What stands out
“The Ashdown Pro-FX Two-Band Boost is a compact bass boost pedal combining two distinct boost types in a single enclosure: a full-range boost and a treble boost, each with independent gain controls”
— from the listing
“The pedal also introduces a touch of midrange when the treble boost is engaged, helping to cut through a band mix”
— from the listing
“Full-range boost provides clean volume lift appropriate for any signal chain position, and the treble boost adds upper-frequency presence and slight mid oomph that helps bass cut through a dense band mix”
— from the reviews
“The independent control of each boost type is the main strength”
— from the community notes
“Works equally well on guitar and bass”
— from the community notes
Trade-offs
“The pedal remains clean throughout its range and is ; players expecting overdrive character from a boost pedal will need a different tool”
— from the reviews
“Players needing drive or saturation from their boost stage will find this pedal too clean in character”
— from the community notes
- boost
- treble
- full
- presence
- bass
- mix
- top end
- clean boost
Price updated Oct 23, 2026
Genres the Ashdown Pro-FX Two-Band Boost is commonly used in
- Alternative
cited
Inferred from shared tonal signals, not a stated genre tag. - Rock
cited
Inferred from shared tonal signals, not a stated genre tag. - Blues
cited
Inferred from shared tonal signals, not a stated genre tag. - Doom Metal
cited
Inferred from shared tonal signals, not a stated genre tag. - Indie Rock
cited
Inferred from shared tonal signals, not a stated genre tag. - Blues Rock
cited
Inferred from shared tonal signals, not a stated genre tag.
Amps that pair well with the Ashdown Pro-FX Two-Band Boost
Swart Star-Base 1
Swart
14% matchfills a frequency gapFills in a frequency range the other side doesn't cover, instead of piling more onto what's already there. (bright → warm)
Where this leans bright, Swart Star-Base 1 answers back warm
Comes later in the signal chain
Hiwatt Park P18LH 'Little 45' Handwired18W
Hiwatt
tonal matchComes later in the signal chain
Where this leans bright, Hiwatt Park P18LH 'Little 45' Handwired18W answers back warm
Orange BT1000H Terror Bass 1000-Watt Bass Amp
Orange
tonal matchComes later in the signal chain
Orange BT1000H Terror Bass 1000-Watt Bass Amp's warm balances out the bright tone
Orange Terror Bass
Orange
tonal matchComes later in the signal chain
Run Orange Terror Bass after it and the bright edge settles into something more warm
Orange Little Bass Thing
Orange
tonal matchComes later in the signal chain
Where this leans bright, Orange Little Bass Thing answers back warm
Gibson GA-50
Gibson
tonal matchComes later in the signal chain
Gibson GA-50's warm balances out the bright tone
Victory Amplifiers V50 The Earl
amplifier
tonal matchComes later in the signal chain
Where this leans bright, Victory Amplifiers V50 The Earl answers back warm
Synergy OS module
Synergy
tonal matchComes later in the signal chain
Synergy OS module's smooth balances out the bright tone
Pedals that stack with the Ashdown Pro-FX Two-Band Boost
Hughes & Kettner Tube Rotosphere MKII The Analog Leslie Simulator
pedal
23% 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 Hughes & Kettner Tube Rotosphere MKII The Analog Leslie Simulator after Ashdown Pro-FX Two-Band Boost in the signal chain, clear of Ashdown Pro-FX Two-Band Boost's own gain stage
Comes later in the signal chain
Ashdown Velvet Compressor
Ashdown
19% matchfills a frequency gapFills in a frequency range the other side doesn't cover, instead of piling more onto what's already there. (bright → smooth)
Ashdown Velvet Compressor leans toward compressed, and that's a real, usable character to pair with
Comes earlier in the signal chain
Catalinbread SFT
Catalinbread
18% matchfills a frequency gapFills in a frequency range the other side doesn't cover, instead of piling more onto what's already there. (bright → warm)
Catalinbread SFT leans warm right where the bright tone needs it
Comes later in the signal chain
Greer Mizuki blue
Greer
18% matchfills a frequency gapFills in a frequency range the other side doesn't cover, instead of piling more onto what's already there. (bright → warm)
Greer Mizuki blue leans warm right where the bright tone needs it
Comes later in the signal chain
T-Rex Junior Roomate
T Rex
14% matchsits in the right chain slotPlaced for where it does its job cleanly in the chain, not for a tonal interaction with the anchor.
Put T-Rex Junior Roomate after Ashdown Pro-FX Two-Band Boost in the signal chain, clear of Ashdown Pro-FX Two-Band Boost's own gain stage — goes in the amp's FX loop (or last, into a clean amp)
Comes later in the signal chain
Line 6 DL4 Delay Modeler
pedal
14% matchsits in the right chain slotPlaced for where it does its job cleanly in the chain, not for a tonal interaction with the anchor.
Put Line 6 DL4 Delay Modeler after Ashdown Pro-FX Two-Band Boost in the signal chain, clear of Ashdown Pro-FX Two-Band Boost's own gain stage — goes in the amp's FX loop (or last, into a clean amp)
Comes later in the signal chain
SolidGoldFX Commodore Breaker Overdrive
Solidgoldfx
tonal matchComes later in the signal chain
SolidGoldFX Commodore Breaker Overdrive's smooth balances out the bright tone
Dunlop Blue Hippo Optical Tremolo
Dunlop
tonal matchComes later in the signal chain
Dunlop Blue Hippo Optical Tremolo leans warm right where the bright tone needs it
Boutique & premium upgrades
Aguilar - OBP-1TK On-Board Bass Preamp
Aguilar
62% similarityShared character: high end, articulation, boost
Dunlop MXR M85 Bass Distortion
Dunlop
59% similarityShared character: presence, mix, middle
Ashdown Triple Shot
Ashdown
51% similarityShared character: treble, mix, middle
Electro-Harmonix Nano Operation Overlord
Electro-Harmonix
50% similarityShared character: boost, treble, touch
Xotic Bass RC Booster V2
Xotic
50% similarityShared character: boost, bass, clean
Ashdown James LoMenzo HyperDrive
Ashdown
49% similarityShared character: high end, treble, mix
Similar character
See all alternatives to the Ashdown Pro-FX Two-Band Boost (cheaper + boutique) →
Questions people ask
What are good alternatives to the Ashdown Pro-FX Two-Band Boost?+
The closest matches in character are the Aguilar OBP-2TK, the Behringer BDI21, the Ashdown James LoMenzo Mega Drive. Boutique upgrades: Aguilar - OBP-1TK On-Board Bass Preamp, Dunlop MXR M85 Bass Distortion, Ashdown Triple Shot.
What pairs well with the Ashdown Pro-FX Two-Band Boost?+
Strong matches from rig and tone-complementarity evidence: Swart Star-Base 1, Hiwatt Park P18LH 'Little 45' Handwired18W, Orange BT1000H Terror Bass 1000-Watt Bass Amp — Where this leans bright, Swart Star-Base 1 answers back warm.
How much does the Ashdown Pro-FX Two-Band Boost cost?+
Around $34.99 (live listing price, updated Oct 23, 2026).