1985 Marshall JCM 800 2203 - PPIMV Gibson Les Paul V.O.S. HD

Hey this is a short clip of my stock Marshall JCM 800 2203. But i installed a PPIMV ( post phase inverter master volume) to get that chuncky tasty sound at home - it fn works!!! And it's completly removeable! Listen :) Cab is a 'JCM 800 series 1960 with g12t75 Speakers! Sounds great! :) Cheers!!