Alternatives to the Ashdown Pro FX Retro Drive

Electro-Harmonix Nano Operation Overlord

Shared character: hard_rock, full, middle

Orange Bass Butler Bi-Amp Bass Preamp

Shared character: grit, preamp, bass

Boss BB-1X

Shared character: tone_control, full, bass

ZVEX Basstortion Vexter

Shared character: simple_three_knob_layout, fuzz, simple

Laney Black Country Customs Blackheath Bass Distortion

Shared character: hard_rock, gain

Carl Martin Bass Drive

similar tone character

Ashdown James LoMenzo KegaDrive Bass Distortion

similar tone character

Ashdown Pro-FX Pro Drive

Shared character: true_bypass, tone_control, signal_integrity

Ashdown James LoMenzo Mega Drive

Shared character: hard_rock, grit, full

Electro-Harmonix Blogger

Shared character: true_bypass, tone_control, grit

Dunlop Way Huge WM91 Pork & Pickle

Shared character: single_rig, grit, fuzz

Behringer BDI21

Shared character: preamp, bass, overdrive