RhPf Electronics has introduced the Regista pedal, a parametric mid-range EQ pedal based on a circuit that Rupert Neve built at the end of the analog era. It’s a fully parametric, state-variable filter with a six-octave sweep, continuously variable Q, and ±18 dB of gain, derived from the Amek Mozart MZ15-RN.
Rupert Neve spent most of his working life obsessing over the midrange. His entire reputation rests on circuits that make the middle of the spectrum feel right. When he returned to active console design through his Amek consultancy in the early 1990s, he built the Mozart MZ15-RN, the most sophisticated parametric mid bands of the large-format era. It landed at exactly the wrong moment. The industry was moving to digital. Recall systems mattered more. The Mozart was too heavy, too hot, and had no automation. Most desks went into storage.
Nobody builds circuits based on the Mozart. Everyone chases the 1073, the 1081, the 1084. Neve's mid-1970s work. The Mozart, his most sophisticated parametric mid design, sits largely outside the gear-worship circuit.
RhPf Electronics took that strip apart and started there.
Regista merges the Mozart into a single continuous system and extends every dimension of their original design beyond what the console was ever asked to do. The result is a true fully parametric midrange pedal: independent, continuously variable control of frequency, gain, and bandwidth, built on a state-variable filter architecture that maintains phase coherence across the entire sweep.
Zone: Continuous sweep from 100 Hz to 10 kHz (over six octaves of the midrange)
Shape: Fully variable bandwidth, from broad and open to tight and surgical
Drive: ±18 dB boost or cut at the selected frequency
Level: An additional ±18 dB post-EQ recovery gain
Architecture: State-variable filter with phase-coherent response
At wider Shape settings, Regista integrates like a broad console mid, shaping the signal without drawing attention to itself. Narrower settings focus the response, allowing precise control over resonances and harmonic content. The circuit maintains phase coherence across the sweep, adjustments remain predictable even at extreme settings, without introducing unintended artifacts.
Street price is $339 USD. Available at select retailers and directly from rhpfelectronics.com.
RhPf Electronics is an independent pedal company based in Basel, Switzerland, focused on original circuit design with an emphasis on musical response, control, and long-term reliability.
Regista Parametric Mid-Range Pedal
Basel, Switzerland – July 2026: RhPf Electronics has introduced the Regista pedal, a parametric mid-range EQ pedal based on a circuit that Rupert Neve built at the end of the analog era. It’s a fully parametric, state-variable filter with a six-octave sweep, continuously variable Q, and ±18 dB of gain, derived from the Amek Mozart MZ15-RN.
