Alternatives to the Walrus Audio EB-10 Black Edition

Demon FX Full BB Preamp

Shared character: boost, gain

Catalinbread Blood Donor

Shared character: boost, gain

Frost Giant Electronics Yama

Shared character: boost, gain

TC Electronic Spark Booster

Shared character: boost

Xotic BB Preamp

Shared character: boost, gain

Browne Amplification The Fixer Dual Boost/Buffer

Shared character: original tone, boost, gain

67Audio Libido

Shared character: boost, gain, stage

Bogner Ecstasy Blue Mini Overdrive

Shared character: boost, gain, stage

Caline CP-12 Blue Pure Sky

Shared character: boost

Tone City Holy Aura

Shared character: boost

Mad Professor Ruby Red Booster

Shared character: boost, gain, stage

Mooer Dual-Channel Preamp

Similar role and voicing

Origin Effects DCX Boost

Shared character: boost, gain

Hudson Electronics AP-II

Similar role and voicing

Electronic Audio Experiments Longsword Eastside Exclusive Mono Camo

Shared character: boost

Xotic EP-Pro

similar tone character

Catalinbread Epoch Boost EP-3

Shared character: boost, stage

Xotic BB Preamp V1.5

Shared character: boost, gain, stage

Origin Effects DCX Boost Black Edition

Shared character: boost

Behringer PB100 Preamp Booster

Shared character: boost, gain, stage

JHS Colour Box V2

Shared character: boost, gain, stage

One Control OC-Lge

Shared character: boost

Paul Cochrane Timmy

Shared character: boost, gain, stage

IK Multimedia Z-Tone Buffer Boost

Shared character: boost

Airis Effects -Nemesis Preamp

Shared character: effects loop

DGN Custom Guitars V3 Blaster Board

Shared character: gain, stage

Benson Amps BA-Pre

Shared character: boost, gain, stage

Vox CT-03BT

Shared character: boost, gain