Ashville Music Tools APH-12 Plus Analogue 12 Stage Shifter Pedal

The Asheville Music Tools APH-12 Plus is a small-batch, fully analogue 12-stage phaser that takes the original APH-12 concept and pushes it into far more experimental territory. With all 12 stage options on tap, dual envelope followers, bi-polar CV and expression control and a redesigned low-noise preamp, it is a deep, performance-ready modulation toolkit for players who want everything from classic swirl to wildly reactive, synth-like movement. By splitting the stage selection across two rotary controls, the APH-12 Plus unlocks every stage count between 1 and 12, including the previously unavailable 7, 8, 10 and 11-stage modes. Add in a second assignable envelope follower with its own sensitivity and polarity control, and you can build complex, dual-slope sweeps that respond directly to your playing dynamics. From subtle movement that tracks your touch to extreme, self-oscillating textures driven by external CV, the APH-12 Plus is designed to be a complete analogue phaser laboratory in pedal form. Alongside the expanded modulation options, Asheville Music Tools have refined the power supply and preamp to significantly lower the noise floor, while still offering up to 30 dB of drive with increasing saturation and mid emphasis. The result is a phaser that can sit clean and hi-fi in a mix, or be pushed into chewy, harmonically rich textures without losing clarity. The three-position mix switch lets you move from classic phase tones to full vibrato-style sounds, while the LFO mode selector makes it easy to flip between slow sweeps, fast rotary-style motion or envelope-driven movement. Finished in a premium colour-shifting enclosure and built in limited quantities, the APH-12 Plus is aimed at players and sound designers who want a deeply tweakable, truly analogue modulation engine that rewards exploration. Whether you are after touch-sensitive vibrato, mid-forward 7-stage swirl, dual-envelope “whizz bang” movement or deep, inverted dives into the sonic depths, this pedal is designed to let your purple phaze fly. Expanded 12-Stage Architecture The APH-12 Plus uses a primary STAGES control and a dedicated Bonus switch to access all 12 possible stage counts, including 7, 8, 10 and 11-stage modes that were unavailable on the original. Even stages give you in-phase, more traditional phasing, while odd stages introduce an out-of-phase, mid-present character that can feel more vocal and focused. Being able to park the Bonus switch on a favourite “hidden” stage and flip to it instantly makes it easy to treat the pedal like it has a built-in preset for live use. Dual Envelope Modulation A second, assignable envelope follower adds a completely new modulation source alongside the main LFO and standard envelope. With its own SENS and ENV controls, tuned for slightly longer attack and release, you can create multi-slope sweeps, dynamic rate changes or inverted movements that react to how hard you play. This lets you build sounds that feel alive under the fingers, from subtle touch-sensitive shimmer to dramatic filter-like sweeps that open and close with your picking. Deep Expression and CV Control The APH-12 Plus offers a bi-polar expression / CV input with a 4-way routing switch, so external control can be applied to Sweep, Resonance, Rate or Amount. Supporting -5 V to +5 V signals, it allows both additive and subtractive modulation relative to the front panel settings, dramatically extending the available range. Whether you are using an expression pedal for hands-free sweeps or integrating the pedal into a modular or DAW-based setup, the APH-12 Plus slots in as a flexible analogue processor that can be tightly synced to the rest of your rig. Low-Noise Analogue Drive and Mix Control A redesigned power supply and preamp significantly reduce noise while still providing up to 30 dB of boost with increasing saturation and mid emphasis as you turn up the DRIVE control. This lets you use the pedal as both a clean, studio-grade phaser and a char…

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