{"product_id":"baltimore-sonic-research-institute-radical-conversion-discrete-opamp-distortion-pedal","title":"Baltimore Sonic Research Institute Radical Conversion Discrete Opamp Distortion Pedal","description":"\u003c!-- more --\u003e\n\u003c!-- split --\u003e\u003cbr\u003e\u003ch4\u003eDiscrete Drive – The BSRI Audio Radical Conversion Distortion Pedal\u003c\/h4\u003e\n\n\u003cp\u003eRadical Conversion uses multiple discrete opamp architectures, including the classic Boss-design, to create a completely discrete, 27-transistor alternate universe homage to the Metal Zone, including the semi-parametric active EQ circuit. The titular Radical Conversion from integrated circuits to discrete opamps started primarily as a flex, because its crazy to make a discrete Metal Zone, but also because it sounds really good to create harmonically-rich drive sounds with lower performance opamp designs. All the subcircuits and filtering have been fine tuned for modern preferences and Radical Conversion adds a trio of preamp voicings to shape the overall voice of the pedal.\u003c\/p\u003e\n\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eVolume - Sets the output volume of the pedal. Crank this one up.\u003c\/li\u003e\n\u003cli\u003eGain - Sets the amount of distortion in the primary gain stage. EVERYTHING in this design is contributing harmonic complexity, but this control sets the overall saturation level.\u003c\/li\u003e\n\u003cli\u003eI - The traditional MT-2 preamp voicing adds a cutting midrange boost before the primary gain stage. Often disabled in popular mods, this boost is the classic midrange snarl and works really well for adding pseudo cocked wah edge to riffs and leads. You’ll hear it mostly on the plain strings.\u003c\/li\u003e\n\u003cli\u003eII - Tight preamp boost for a razor sharp low end response in the gain stage. Excellent for players in low tunings who don’t want any flub.\u003c\/li\u003e\n\u003cli\u003eIII - Fat preamp boost feeds more low end into the gain stage for added compression. Beef up single coils or a bright guitar or really lay into the riffs for sludgier tones\u003c\/li\u003e\n\u003cli\u003eBass - Peaking low end boost\/cut\u003c\/li\u003e\n\u003cli\u003eTreble - Shelving treble boost\/cut\u003c\/li\u003e\n\u003cli\u003eMid Freq - Semi-parametric frequency control for the midrange band. CCW is lower mids down to ~200 Hz and CW is higher mids up to around 4K Hz\u003c\/li\u003e\n\u003cli\u003eMid Gain - Boost\/cut control for the semi-parametric mid band\u003c\/li\u003e\n\u003cli\u003eActivate - True bypass soft-click footswitch to turn the effect on and off\u003c\/li\u003e\n\u003cli\u003ePower supply - Always use a high quality regulated 9V DC negative tip power supply with a BSRI Audio pedal.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\n\u003ch4\u003ePreamp Voicing\u003c\/h4\u003e\n\u003cp\u003eI - The traditional MT-2 preamp voicing adds a cutting midrange boost before the primary gain stage. Often disabled in popular mods, this boost is the classic midrange snarl and works really well for adding pseudo cocked wah edge to riffs and leads. You’ll hear it mostly on the plain strings.\u003c\/p\u003e\n\u003cp\u003eII - Tight preamp boost for a razor sharp low end response in the gain stage. Excellent for players in low tunings who don’t want any flub.\u003c\/p\u003e\n\u003cp\u003eIII - Fat preamp boost feeds more low end into the gain stage for added compression. Beef up single coils or a bright guitar or really lay into the riffs for sludgier tones\u003c\/p\u003e\n\n\u003cp\u003eMany thanks to Dr. John Snyder of Electronic Audio Experiments for his encouragement and for pointing me in the right direction a couple times in this project. Without his advice, BSRI Audio probably wouldn’t have solved a key design problem in making the more current-hungry active filter stages work.\u003c\/p\u003e\u003cp\u003e\u003c\/p\u003e\n\u003cbr\u003e\n\n\n\nManufacturer: Baltimore Sonic Research Institute\u003cbr\u003eModel: RADICAL CONVERSION\u003cbr\u003eSKU: I883694-N-4-WHXX\u003cbr\u003e\u003cp\u003e\u003c\/p\u003e\u003cp\u003e\u003c\/p\u003e\u003cp\u003e\u003c\/p\u003e\u003cp\u003e\u003c\/p\u003e\u003cp\u003e\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e\u003cb\u003eWe are Chuck Levin's Washington Music Center\u003c\/b\u003e\u003c\/p\u003e\u003cp\u003eSince 1958, Chuck Levin’s Washington Music Center has been the trusted destination for musicians and audio professionals across Maryland, Virginia, and Washington, D.C. Family-owned and operated, our legendary music store delivers Everything in Music®—from instruments and recording gear to pro audio, rentals, and repair services.\u003c\/p\u003e\u003cp\u003eOur team of musicians and industry experts lives and breathes gear, helping you build the perfect setup for your next performance, studio session, or installation. As an authorized dealer for top brands, we also offer our award-winning CHUCKSCLUSIVE line—exclusive, limited-edition instruments and collaborations recognized with the NAMM Top 100 Dealer Innovation Award for redefining what a music retail experience can be.\u003c\/p\u003e\u003cp\u003eChuck Levin’s isn’t just a store—it’s a community built by players, engineers, and creators who share a lifelong passion for sound. Stop by our legendary Wheaton, MD showroom or contact us anytime for expert advice, product questions, or the best possible deal on your next piece of gear.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e\u003c\/p\u003e","brand":"Baltimore Sonic Research Institute","offers":[{"title":"Default Title","offer_id":43336619655231,"sku":"I883694-N","price":249.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0268\/0972\/9087\/files\/b1c837f1-19e6-456e-9b03-591c4dac7b41.jpg?v=1780524919","url":"https:\/\/chucklevins.com\/products\/baltimore-sonic-research-institute-radical-conversion-discrete-opamp-distortion-pedal","provider":"Chuck Levin's Washington Music Center","version":"1.0","type":"link"}