{"product_id":"warm-audio-dirty-boy-jr-overdrive","title":"Warm Audio Dirty Boy Jr. Overdrive – Analog Preamp \u0026 Amp-Style Drive Pedal","description":"\u003cp\u003e\u003cstrong\u003e🚚FAST \u0026amp; FREE SHIPPING from Phoenix, AZ!\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e🎸 Local demo available by appointment in Phoenix, AZ\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eWarm Audio Dirty Boy Jr. Overdrive\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cem\u003eAn amp-like analog overdrive and preamp that moves from clean boost to saturated vintage breakup, with adjustable Variac sag and a speaker-emulated output for direct recording or performance.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3 dir=\"auto\" class=\"PDq2pG_selectionAnchorContainer\"\u003e\n\u003cspan role=\"text\"\u003e\u003cstrong\u003eProfessor’s Notes\u003c\/strong\u003e\u003c\/span\u003e\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h3\u003e\n\u003cp dir=\"auto\"\u003eThe Dirty Boy Jr. Overdrive feels more like a compact amplifier channel than a conventional drive pedal, with excellent clarity and an unusually easy path to great single-coil or humbucker tones. Run the Gain higher and control breakup from your guitar volume, then use the Variac to add compression, sag, and rougher voltage-starved textures. Separate preamp and speaker-emulated outputs make it equally useful on a pedalboard, in the studio, or as a compact direct rig.\u003c\/p\u003e\n\u003ch3 dir=\"auto\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eRig Role\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp dir=\"auto\"\u003eThe Dirty Boy Jr. works especially well as a \u003cstrong\u003eflexible back-of-chain preamp, foundational edge of breakup or crunch sound, or more dramatic second-stage drive\u003c\/strong\u003e. Use it at lower Gain settings for clean boost and edge-of-breakup textures, or place it after a lower-gain foundation sound to add fuller saturation, compression, and amp-like movement.\u003c\/p\u003e\n\u003cp dir=\"auto\" class=\"\"\u003eAt restrained Gain and Variac settings, it can function as a dynamic clean boost or lightly driven preamp. Increasing the Gain produces richer harmonic saturation, while the Variac control progressively introduces sag, compression, and voltage-starved fuzz character for a softer, more reactive attack.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eThe separate outputs expand its role beyond a standard overdrive. The raw preamp output can feed an amplifier, power amp, effects return, interface, or additional pedals, while the speaker-emulated output provides a closed-back 4x12-style voice for direct recording, front-of-house connection, or a compact amplifier-free setup.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe Warm Audio Dirty Boy Jr. Overdrive recreates the original Dirty Boy Preamp circuit in a compact, pedalboard-friendly format.\u003c\/p\u003e\n\u003cp\u003eIts proprietary all-analog T.A.E. tube amp emulation circuit is designed to reproduce the response and harmonic behavior of a driven amplifier. The pedal moves from clean boost and low-gain breakup to saturated vintage-style overdrive while remaining responsive to pick attack and guitar-volume changes.\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eGain\u003c\/strong\u003e control determines preamp drive and harmonic saturation, while \u003cstrong\u003eVolume\u003c\/strong\u003e acts as the circuit’s master output. \u003cstrong\u003eTone\u003c\/strong\u003e adjusts high-frequency presence, allowing the pedal to move from warmer and rounder to brighter and more articulate.\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eVariac\u003c\/strong\u003e control simulates reducing the circuit’s operating voltage. Turning it clockwise adds sag, compression, and increasingly voltage-starved fuzz textures, giving the pedal a softer attack and more elastic response.\u003c\/p\u003e\n\u003cp\u003eTwo independent outputs make the Dirty Boy Jr. adaptable to traditional and direct rigs. The \u003cstrong\u003ePre Output\u003c\/strong\u003e delivers the raw analog preamp signal without cabinet emulation, while the \u003cstrong\u003eEm Output\u003c\/strong\u003e adds a speaker voice modeled after a closed-back 4x12 cabinet loaded with Greenback-style speakers.\u003c\/p\u003e\n\u003ch3 dir=\"auto\" class=\"PDq2pG_selectionAnchorContainer\"\u003e\n\u003cspan role=\"text\"\u003e\u003cstrong\u003eQuick Start Settings\u003c\/strong\u003e\u003c\/span\u003e\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h3\u003e\n\u003ch3 dir=\"auto\"\u003eProfessor’s Starting Point\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eVolume:\u003c\/strong\u003e Set for unity or a slight boost\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGain:\u003c\/strong\u003e 11–12 o’clock\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTone:\u003c\/strong\u003e 10 o’clock\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVariac:\u003c\/strong\u003e 12 o'clock\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"auto\"\u003eStart here for a clear, amp-like crunch sound. Set the pedal slightly dirtier than you need, then use your guitar volume to move between cleaner breakup and fuller saturation.\u003c\/p\u003e\n\u003ch3 dir=\"auto\"\u003eEdge of Breakup\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eVolume:\u003c\/strong\u003e Slight boost\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGain:\u003c\/strong\u003e 9–10 o’clock\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTone:\u003c\/strong\u003e 10–11 o’clock\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVariac:\u003c\/strong\u003e 10–11 o’clock\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"auto\"\u003eA more restrained preamp sound for adding harmonic texture and touch-sensitive breakup without substantially changing the character of your guitar and amp.\u003c\/p\u003e\n\u003ch3 dir=\"auto\"\u003eSag \u0026amp; Saturation\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eVolume:\u003c\/strong\u003e Set to taste\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGain:\u003c\/strong\u003e 2–3 o’clock\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTone:\u003c\/strong\u003e 9 o’clock\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVariac:\u003c\/strong\u003e 11 o'clock, then decrease to taste\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eHigher Gain brings out the pedal’s richer saturation, while Variac progressively softens the attack and adds compression, sag, and rougher voltage-starved character.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAmp-like analog overdrive, preamp, and direct amp simulator\u003c\/li\u003e\n\u003cli\u003eBased on the original Dirty Boy Preamp circuit\u003c\/li\u003e\n\u003cli\u003eProprietary all-analog T.A.E. tube amp emulation technology\u003c\/li\u003e\n\u003cli\u003eGain range from clean boost to saturated vintage-style overdrive\u003c\/li\u003e\n\u003cli\u003eVariac simulation for adjustable sag, compression, and voltage-starved fuzz textures\u003c\/li\u003e\n\u003cli\u003eTouch-sensitive response with tube-like harmonic saturation and dynamic cleanup\u003c\/li\u003e\n\u003cli\u003eControls: Gain, Volume, Variac, and Tone\u003c\/li\u003e\n\u003cli\u003eRaw analog preamp output without speaker emulation\u003c\/li\u003e\n\u003cli\u003eSpeaker-emulated output voiced after a closed-back 4x12 Greenback-style cabinet\u003c\/li\u003e\n\u003cli\u003eTrue analog signal path\u003c\/li\u003e\n\u003cli\u003eTrue-bypass switching\u003c\/li\u003e\n\u003cli\u003e1\/4\" instrument input\u003c\/li\u003e\n\u003cli\u003e1\/4\" preamp output\u003c\/li\u003e\n\u003cli\u003e1\/4\" speaker-emulated output\u003c\/li\u003e\n\u003cli\u003eInput impedance: 1 MΩ\u003c\/li\u003e\n\u003cli\u003eOutput impedance: 6.5 kΩ\u003c\/li\u003e\n\u003cli\u003eStandard 9V DC center-negative power\u003c\/li\u003e\n\u003cli\u003eDimensions: 4.8\" × 2\" × 2.6\"\u003c\/li\u003e\n\u003cli\u003eWeight: 0.6 lb.\u003c\/li\u003e\n\u003cli\u003eFive-year limited manufacturer warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eWhy Buy from Professor Nigel’s?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eCurated, Working-Player Gear\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eEvery product at Professor Nigel’s earns its place by offering something genuinely useful, musically compelling, or creatively distinct—not simply by filling catalog space.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAuthorized Dealer Confidence\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eProfessor Nigel’s is an authorized Warm Audio dealer. This pedal is brand new, sourced through authorized distribution, and covered by the full manufacturer warranty.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFast, Reliable Shipping from Phoenix, AZ\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eOrders are inspected, packed carefully, and shipped quickly from our shop in Phoenix, Arizona, with clear communication throughout the process.\u003c\/p\u003e","brand":"Warm Audio","offers":[{"title":"Default Title","offer_id":52874861019456,"sku":"WA-DBjr-OD","price":169.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0943\/6486\/0736\/files\/IMG_0186.jpg?v=1789590901","url":"https:\/\/professornigels.com\/products\/warm-audio-dirty-boy-jr-overdrive","provider":"Professor Nigel's","version":"1.0","type":"link"}