A.C.P 搖 Yuri ゆりTube Vibrato

Inspired by the ancient Japanese Buddhist chanting art of Yuri (揺)—where the human voice bends, dips, and breathes with natural asymmetry—this pedal blends an independent, hardware-interpolated DSP pitch vibrato with cavernous temple ambiance and a roaring 12AU7 analog tube boost. It doesn't just shake your tone; it makes it breathe.

Key Features

• Hybrid Architecture: A side-by-side layout featuring an advanced digital pitch engine with built-in hall ambiance, paired with a completely independent, analog vacuum tube boost circuit.
• 12AU7 Thermionic Heart: Driven by a hand-selected 12AU7 twin-triode vacuum tube, delivering authentic analog saturation, subtle power-sag, and a rich harmonic bed that solid-state pedals simply cannot replicate. The 12AU7 is renowned for its smooth, glassy overdrive.
• True Doppler Pitch Shifting: Utilizing precise cross-fading and hardware interpolation, YURI modulates time delay itself to create smooth, glitch-free, authentic pitch bending without digital artifacting.
• Dynamic Response: Because of the tube's natural compression, your picking dynamics directly affect the texture of the drive. Dig in hard for a gritty, smoky de-tune; play softly for an ethereal, floating warble.
• True Bypass: Premium audio-grade switching ensures your core guitar tone remains completely pristine when the effect is disengaged.

Control Layout

I. Vibrato Controls (調變)

• RATE (律動): Sweeps from a slow, meditative, ocean-like sway to a rapid, swirling rotary spin. (Uses an exponential curve for ultra-precise slow-speed adjustments).
• DEPTH (深度): Controls the intensity of the pitch shift, ranging from a subtle lo-fi tape warble to a deep, dizzying valley-to-peak glide.
• REVERB (堂鳴): Infuses your signal with the cavernous, contemplative ambiance of an ancient wooden temple hall. Rather than a sterile digital space, it mimics the complex, warm reflections of a monastic sanctuary, enveloping your vibrato in an ethereal shroud of time.
• MIX (融合): Adjusts the linear crossfade between your dry guitar signal and the modulated wet signal. Dial it back for a subtle chorus-like texture, or crank it to 100% for absolute true pitch vibrato.
• VOLUME (主音量): Sets the overall output volume of the digital vibrato circuit to perfectly match or cut through your mix.

II. 12AU7 Tube Boost Controls

• GAIN (增益): Controls the input gain driving the 12AU7 tube. Keep it low for a pristine, glassy clean boost, or crank it up to saturate your signal with velvety, overdriven tube warmth.
• TONE (音色): A musical EQ that tames harsh highs or cuts through muddy lows, allowing you to shape the voice of the tube saturation.
• VOLUME (音量): Controls the independent output level of the boost circuit. Perfect for kicking on during solos to blast your amplifier's front end with authentic tube voltage.