Olethros Preamp Pedal (Sunn Beta preamp) 1st version - dpFX Pedals
Shift Line Beta (2-ch preamp based on Sunn Beta Bass / Beta Lead) | Reverb
Sunn Beta Preamp volume issue - freestompboxes.org
Sunn Preamp Pedal | SevenString.org
Correct Sound Custom Introduces BETA Bass Preamp Pedal – No Treble
NAD - Sunn beta lead : r/GuitarAmps
Sunn Beta Lead footswitch - dpFX Pedals
Dirtbox Layouts: Sunn Beta Pre Amp
PCB Mania - Sun Beta; lead and bass modes at a flick of the switch. Total DOOM! : r/diypedals
Guitar FX Layouts: Sunn Beta Preamp
Shift Line Beta - Pedal on ModularGrid
Beta Preamplifier — Hilbish Design
Sunn Beta Lead
SNK Pedals CMOSludge Sunn Beta-Style Preamp | Delicious Audio
Sunn Beta Lead in a Pedal? - OffsetGuitars.com
Correct Sound Tube Beta Hybrid Mk. II - Sunn Model T and Beta Preamps | TalkBass.com
The Really Good Pedal Co. Sunn Beta Lead #8 | Reverb
Sunn Beta Lead Guitar Amplifier Review | Guitar Jar
Hilbish Design and Red Fang cram the Sunn Beta Lead into new Night Destroyer preamp pedal | Guitar World
Berserker Prehistoric Dog - Sunn Beta Lead/Bass Preamp Pedal | Reverb UK
Shift Line BETA bass/guitar preamp (pedal-format Sunn Beta Lead) | Reverb
The Really Good Pedal Co Sunn Beta Lead/Bass Preamp | Reverb
Well now here's something new & interesting.... "based on the Sunn Beta Bass" | TalkBass.com
