{"product_id":"marshall-st20h-studio-classic-jtm-20w-valve-amplifier-head","title":"Marshall ST20H Studio Classic JTM 20W Valve Amplifier, Head","description":"\u003cp\u003eLike the original 30W head, the Marshall Studio JTM is loaded with two ECC83 preamp valves, two 5881 power amp valves and one ECC83 phase splitter — taking you right back to the renaissance of rock 'n' roll. The Studio JTM also offers the same control and versatility as older models, where simply patching the two channels together opens up a world of tonal possibility.\u003c\/p\u003e\n\u003cp\u003eHandy power switching has been added to allow you to change effortlessly between 20W and 5W modes, with two loudness controls meaning that you can play as loud as you like! Marshall have really gone the extra mile for modern musicians by integrating features such as a DI output and FX loop too, bringing the JTM into the now!\u003c\/p\u003e","brand":"Marshall","offers":[{"title":"Default Title","offer_id":58188827361667,"sku":"ST20H-H","price":849.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0432\/6024\/8218\/files\/ST20H-Marshall-ST20H-JTM-Studio-Amp-Head__94932.1715105515.jpg?v=1780657885","url":"https:\/\/astrings.co.uk\/products\/marshall-st20h-studio-classic-jtm-20w-valve-amplifier-head","provider":"A Strings","version":"1.0","type":"link"}