Crazy tube circuit Orama

Every element of CRAZY TUBE CIRCUIT Orama pedal was designed to feel alive under your hands : dynamic, reactive, and expressive. Whether used as two separate voices or as one unified wall of sound, it delivers the power, response, and full spectrum of rock tone. It’s a dialogue between eras and genres.

The left, AMP section takes direct inspiration from a seminal British amplifier - Orange OR120 - whose roots trace back to the late 1960s and early 1970s. Over the years, countless notable guitarists across styles have relied on that unmistakable amp voice. It delivers everything from bluesy breakup and Classic Rock crunch to Britpop sizzle. For many Heavy Rock, Desert, Stoner and Doom players, it remains the ultimate choice for its colossal headroom, thick low end, and overwhelming, room-shaking authority.
Orama captures the full sweep of that circuit’s gain, from clean and edge-of-breakup tones to thick, saturated drive, while preserving the raw immediacy and punch that made the original legendary. Inside, a JFET circuitry runs on 34 V DC, raised via an internal voltage boost from the incoming 9V DC power supply, delivering enormous headroom, dynamic range, and bass response that mirrors the authority of a full-powered amplifier.
Another crucial element of the original circuit is a control that boosts upper harmonics gain and presence to help the amp cut through dense mixes. Orama’s H.F.D. (High Frequency Dynamics) mirrors this behavior, allowing players to add definition, bite, and clarity, especially useful when the gain control is set high and the tone grows heavier in the low and low-midrange territory. Increasing H.F.D. at higher gain settings restores top-end sparkle and ensures the sound remains articulate and balanced even in the thickest, most saturated tones.

The Fuzz section takes inspiration from a landmark design from the early boutique pedal era of the 90s (Frantone Peachfuzz). Its circuit is driven by power amplifier ICs rather than traditional transistor or diode clipping stages. This design gives the fuzz its distinctive voice : thick, powerful, and harmonically complex, yet capable of surprising smoothness and control. It delivers a full, amp-like roar that feels more like an overdriven output stage at the verge of explosion rather than a conventional fuzz circuit.
Two distinct voicings, RAW and BURN, extend the range from vintage-inspired textures to high-gain saturation and sonic mayhem. The RAW mode offers an open, dynamic response with tight low end and clear mids, while BURN unleashes deeper bass and longer sustain for a heavier, molten character. Overall bass response has been slightly refined to make the circuit sit more naturally in a band mix without losing its signature thickness. The result is a more flexible, balanced fuzz that still retains the immense sustain and sheer mass of the source circuit.