Alternatives to the EarthQuaker Devices Buffer/Preamp

Tone City Dry Martini

Shared character: boost

Source Audio ZIO

Shared character: long cable runs, 8 impedance, boost

Xotic EP Booster

Shared character: all levels, high end, signal

Benson Amps Portable Distortion 424 MKII

Shared character: 8 impedance, signal, subtle

Origin Effects M-EQ Driver

Shared character: high end, signal, subtle

EarthQuaker Devices Arrows Pre-Amp Booster

Shared character: high end, signal chain, subtle

Analog Man King of Tone

Shared character: boost, clarity

MXR Timmy Overdrive

Shared character: high end, clarity

Revv Shawn Tubbs Tilt

Shared character: boost

MXR MC401 Boost/Line Driver

Shared character: buffer, signal integrity, long cable runs

Xotic BB Preamp V1.5

Shared character: boost, clarity

Boss BD-2W Blues Driver Waza Craft

Shared character: high end, subtle, boost

Vemuram Jan Ray

Shared character: high end, clarity

DOD YJM308 Preamp Overdrive

Shared character: high end, true bypass, boost

JHS Morning Glory

Shared character: 8 impedance, boost, clarity

Wampler Tumnus V2

Shared character: high end, boost

J. Rockett Archer

Shared character: raw, subtle, boost

NuX SSD-10

Shared character: high end, boost

Mooer 003

Shared character: high end

Fulltone OCD V2

Similar role and voicing

Behringer PB100 Preamp Booster

Shared character: 8 impedance, signal chain, boost

NuX NDS-5 Fireman Distortion Dual Brown Sound

Shared character: high end, true bypass, clarity

Electro-Harmonix Crayon

similar tone character