Metroamp Forums – Forums populated by do-it-yourself Marshall enthusiasts.

Plexi Palace – The authoritative forums on vintage Marshalls.

Gearslutz – The authoritative Pro Audio forum, featuring world reknown engineers posting regularly.

3DAudio Inc – The old yellow board, devoted to Pro Audio and boutique gear.

Studio Design – Great resource for building or enhancing your own recording studio.

TheGearPage – All about guitar gear.

JTM45 Yahoo Group – Devoted to the coveted JTM45 Marshall head.

18watt Forums – Devoted to the coveted 18 watt Marshall head.

Who Is Using SoZo?:

PRS Guitars Bogner Amplification Metropolous Amps 65 Amps Logo Germino Amps Clark Amplification Fargen Tube Amplifiers