The Walrus Audio Mantle Analog Bass Pre-Amp/DI is a Walrus Audio preamp pedal, currently around $749. Close alternatives include the Ampeg SCR-DI and the Palmer Pepampbass. It pairs well with the Carl Martin Andy Timmons Signature and the Origin Effects RevivalDrive.
Walrus Audio Mantle Analog Bass Pre-Amp/DI
Walrus Audio · pedal
The Walrus Audio Mantle is an analog bass preamp and DI from Walrus Audio (Oklahoma City, USA), co-developed with session bassist Ian Martin Allison, featuring rotary EQ switches with eleven positions offering both filter and boost options across different frequency ranges, plus a DI output for direct recording.
What stands out
“Guitar World reviews it as a premium preamp and DI created in close collaboration with Ian Martin Allison, praising the rotary EQ switches with eleven positions; talkbass”
— from the community notes
“The Walrus Audio Mantle is an analog bass preamp and DI from Walrus Audio (Oklahoma City, USA), co-developed with session bassist Ian Martin Allison, featuring rotary EQ switches with eleven positions offering both filter and boost options …”
— from the listing
“featuring rotary eq switches with eleven positions offering both filter and boost options across different frequency ranges”
— from the listing
“The Walrus Audio Mantle delivers analog bass preamp at Walrus Audio quality for professional bass players”
— from the community notes
“Its standout strength is the rotary 11-position EQ in a collaboration with a professional session bassist”
— from the community notes
- eq
- rotary
- bass
- di
- filter
- session
- direct recording
Good for
- Live
- Silent Recording
- Silent Stage
- Studio
Price updated Oct 24, 2026
Genres the Walrus Audio Mantle Analog Bass Pre-Amp/DI is commonly used in
- Acoustic
cited
Inferred from shared tonal signals, not a stated genre tag.
Pedals that stack with the Walrus Audio Mantle Analog Bass Pre-Amp/DI
Carl Martin Andy Timmons Signature
Carl Martin
24% matchshapes the dynamic responseShapes how the tone responds to picking dynamics rather than its frequency or gain. (dynamic → compressed)
Carl Martin Andy Timmons Signature leans toward compressed, and that's a real, usable character to pair with
Comes earlier in the signal chain
Origin Effects RevivalDrive
Origin Effects
17% matchshapes the dynamic responseShapes how the tone responds to picking dynamics rather than its frequency or gain. (dynamic → compressed)
Origin Effects RevivalDrive leans this dynamic tone toward compressed, which it doesn't make on its own
Comes earlier in the signal chain
Keeley Super AT Mod Overdrive Limited Edition
Keeley
16% matchshapes the dynamic responseShapes how the tone responds to picking dynamics rather than its frequency or gain. (dynamic → compressed)
Into a dynamic tone, Keeley Super AT Mod Overdrive Limited Edition brings a pull toward compressed that's missing
Comes earlier in the signal chain
Catalinbread Valcoder '70s Collection
Catalinbread
9% matchsits in the right chain slotPlaced for where it does its job cleanly in the chain, not for a tonal interaction with the anchor.
Run Catalinbread Valcoder '70s Collection after Walrus Audio Mantle Analog Bass Pre-Amp/DI in the signal chain, clear of Walrus Audio Mantle Analog Bass Pre-Amp/DI's own gain stage
Comes earlier in the signal chain
Electro-Harmonix Holy Grail Max
Electro-Harmonix
5% matchKeep Walrus Audio Mantle Analog Bass Pre-Amp/DI's analog warmth voice out front: Electro-Harmonix Holy Grail Max goes after Walrus Audio Mantle Analog Bass Pre-Amp/DI in the signal chain so its spring voice doesn't muddy it — goes in the amp's FX loop (or last, into a clean amp)
Comes later in the signal chain
Eventide Space
Eventide
5% matchKeep Eventide Space after Walrus Audio Mantle Analog Bass Pre-Amp/DI in the signal chain, clear of Walrus Audio Mantle Analog Bass Pre-Amp/DI's own gain stage — goes in the amp's FX loop (or last, into a clean amp)
Comes later in the signal chain
DigiTech DOD Compressor 280
Digitech
tonal matchComes earlier in the signal chain
The dynamic tone has headroom to spare — DigiTech DOD Compressor 280 leans it toward compressed to fill it in
DigiTech XBS Bass Squeeze
Digitech
tonal matchComes earlier in the signal chain
Into a dynamic tone, DigiTech XBS Bass Squeeze brings a pull toward compressed that's missing
Cheaper alternatives
MXR Thump Bass Preamp
MXR
56% similarityShared character: filter, bass
Mesa/Boogie Subway Bass DI Preamp II
Mesa Boogie
50% similarityShared character: filter, bass
Electro-Harmonix Battalion Bass Preamp/DI
Electro-Harmonix
49% similarityShared character: bass
Demon FX Microtube D7K "Bass" Preamp
Demon Fx
49% similarityShared character: filter, bass
Laney Digbeth DB-Pre
Laney
47% similarityShared character: bass
Palmer Pocket AMP Bass
Palmer
45% similarityShared character: bass
Similar charactersee all similar tone character →
See all alternatives to the Walrus Audio Mantle Analog Bass Pre-Amp/DI (cheaper + boutique) →
Questions people ask
What are good alternatives to the Walrus Audio Mantle Analog Bass Pre-Amp/DI?+
The closest matches in character are the Ampeg SCR-DI, the Palmer Pepampbass, the Hotone B Station. Budget picks: MXR Thump Bass Preamp, Mesa/Boogie Subway Bass DI Preamp II, Electro-Harmonix Battalion Bass Preamp/DI.
What pairs well with the Walrus Audio Mantle Analog Bass Pre-Amp/DI?+
Strong matches from rig and tone-complementarity evidence: Carl Martin Andy Timmons Signature, Origin Effects RevivalDrive, Keeley Super AT Mod Overdrive Limited Edition — Carl Martin Andy Timmons Signature leans toward compressed, and that's a real, usable character to pair with.
How much does the Walrus Audio Mantle Analog Bass Pre-Amp/DI cost?+
Around $749 (live listing price, updated Oct 24, 2026).