Alternatives to the Carl Martin Hydra boost

67Audio Libido

Shared character: boost, stage, transparent

Demon FX Full BB Preamp

Shared character: boost, transparent

DOD 250 Overdrive Preamp

similar tone character

Fender Engager Boost

similar tone character

TC Electronic Spark Mini Booster

similar tone character

MXR Micro Amp

similar tone character

JAM Pedals TubeDreamer 58

Shared character: jazz, boost, high_gain_settings

Analog Man King of Tone

Shared character: boost, high_gain_settings, distortion

Bogner Wessex V2

Shared character: wide_range, boost, presence

Jackson Audio Blossom

Shared character: boost, stage, transparent

Walrus Audio Ages

Shared character: wide_range, boost

Xotic RC Booster

similar tone character

Beetronics Buzzter Boost Preamp

similar tone character

J. Rockett .45 Caliber Overdrive

similar tone character

Warm Audio Dirty Boy Jr. Booster

similar tone character

J. Rockett Archer Clean

similar tone character

Crazy Tube Circuits Clean Little Secret

similar tone character

Spaceman Effects Atlas IV

similar tone character

EarthQuaker Devices Life

Shared character: guitar_tone, signal, boost

Xotic BB Preamp

Shared character: wide_range, boost

Black Arts Toneworks -Skyboost

Shared character: wide_range, boost, presence

Danelectro CEO

Shared character: guitar_tone, boost, transparent

Morley MDB2 Dual Boost Distortion

Shared character: wide_range, boost, distortion

Mad Professor Ruby Red Booster

similar tone character

Catalinbread Sidearm

similar tone character

Behringer PB100 Preamp Booster

similar tone character

Dr. Scientist Boostbot

similar tone character

Tone City Holy Aura

similar tone character

Blackstar Dept. 10 Boost

similar tone character

Catalinbread Blood Donor

similar tone character