{"product_id":"gmi-public-address-systems-33f6-35w-dual-channel-handwired-tube-guitar-amplifier-stack-troy-van-leeuwen","title":"GMI Public Address Systems 33F6 35W 2x12\" Dual-Channel Handwired Tube Guitar Amplifier Stack","description":"\u003cp\u003e\u003cspan\u003eThe GMI Public Address Systems 33F6 is a boutique, American-made 35-watt tube amplifier developed in collaboration with Troy Van Leeuwen of Queens of the Stone Age. Designed and handcrafted by amplifier builder Sean Romin, the 33F6 combines the unmistakable character of vintage tube amplification with modern reliability, versatility, and road-ready construction.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDrawing inspiration from the legendary circuits of vintage Fender, Marshall, and Peavey amplifiers, the 33F6 delivers an exceptionally articulate and harmonically rich tonal response. From expansive, full-bodied cleans to aggressive, saturated overdrive, this amplifier captures the dynamic sensitivity and musical complexity that make classic tube amplifiers so desirable.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIts four-input design provides a versatile range of tonal possibilities, from rich, responsive overdrive to exceptional clean tones with generous headroom for pedals. A Lar-Mar-style post-phase-inverter master volume allows players to achieve expressive, driven tones at more manageable levels, while the defeatable tone stack provides additional flexibility in shaping the amplifier's response.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eBuilt around a fixed-bias, push-pull tube circuit utilizing 12AX7 preamp tubes and 7581\/6L6-family power tubes, the 33F6 offers impressive clarity, touch sensitivity, and harmonic depth. Its carefully selected components and meticulous handwired construction reflect GMI's commitment to boutique craftsmanship and long-term performance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDeveloped and extensively road-tested with Troy Van Leeuwen, the 33F6 was created to withstand the demands of professional touring while retaining the inspiring character of a great vintage amplifier. Equally suited for recording studios, live performances, and discerning collectors, the GMI 33F6 is a distinctive modern amplifier built with an uncompromising vintage philosophy.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eKey Features\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e35-Watt All-Tube Design:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Fixed-bias, push-pull circuitry delivers rich harmonic content, dynamic response, and excellent tonal clarity.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eTroy Van Leeuwen Collaboration:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Developed with the Queens of the Stone Age guitarist to meet the demands of professional touring and studio recording.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eFour-Input Configuration:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Offers a versatile range of tonal characteristics, from full-bodied cleans to expressive overdrive.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eHandwired American Construction:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Individually built in California with carefully selected premium components.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eLar-Mar-Style Master Volume:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Post-phase-inverter master volume provides precise control over output level and amplifier saturation.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eDefeatable Tone Stack:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Allows players to bypass the tone-control circuit for a different response and tonal character.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003ePremium Tube Complement:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Three 12AX7 preamp tubes and two 7581\/7581A\/6L6GC-family power tubes.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eVintage-Inspired Voicing:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Combines the headroom and warmth of classic Fender designs with Marshall-inspired drive and Peavey-style attack.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eRoad-Ready Construction:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Engineered for dependable performance in demanding professional environments.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBoutique, Limited-Production Design:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Hand-built using specialized components and traditional amplifier-building techniques.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTwo 12\" speaker cabinet: \u003c\/strong\u003eThis stack comes equipped with one 12\" Warehouse Blackhawk speaker and one 12\" Warehouse ET90 speaker for two unique voices when mic'd individually. \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cspan\u003eTechnical Specifications\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBrand:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e GMI Public Address Systems\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eModel:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 33F6\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eType:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Boutique Tube Guitar Amplifier Stack\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eOutput Power:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 35 Watts RMS\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eAmplifier Configuration:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Fixed-Bias, Push-Pull, All-Tube\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eInputs:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 4\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003ePreamp Tubes:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 3 × 12AX7\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003ePower Tubes:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 2 × 7581 \/ 7581A \/ 6L6GC\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eRectifier:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Solid-State\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eMaster Volume:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Lar-Mar-Style Post-Phase-Inverter\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eTone Stack:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Defeatable\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eConstruction:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Handwired\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eCountry of Manufacture:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e USA\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eVoltage Options:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 120V \/ 220V \/ 230V \/ 240V\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eAmplifier Head Dimensions:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 19\" W × 10\" H × 8.5\" D\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eAmplifier Head Weight:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Approximately 30 lbs\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eArtist Collaboration:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Troy Van Leeuwen – Queens of the Stone Age\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eApplication:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Studio Recording \/ Live Performance\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"GMI Public Address Systems","offers":[{"title":"Default Title","offer_id":51566019084505,"sku":null,"price":5499.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0699\/5669\/8329\/files\/amps-118_99e60bd5-2e83-4cbe-a3d8-6bdd00339958.jpg?v=1794414734","url":"https:\/\/malibumusic.com\/products\/gmi-public-address-systems-33f6-35w-dual-channel-handwired-tube-guitar-amplifier-stack-troy-van-leeuwen","provider":"Malibu Music","version":"1.0","type":"link"}