Soulnote P-3 Preamplifier

• Overview – The Soulnote P-3 Preamplifier, released in 2022, is a reference solid-state preamplifier featuring a fully balanced, non-negative-feedback analogue design engineered to deliver exceptional transparency and musical realism.

• Zero-Feedback Architecture – Employing Soulnote’s proprietary non-negative-feedback circuit topology, the Soulnote P-3 Preamplifier preserves transient accuracy, harmonic integrity, and dynamic expression while maintaining an exceptionally low noise floor.

• Reference-Level Engineering – The Soulnote P-3 Preamplifier features dual-mono construction, discrete analogue circuitry, and mechanically isolated assemblies, delivering expansive soundstaging, precise imaging, and outstanding channel separation for flagship audio systems.

Type-R circuits are used inside the non-NFB balance amplifier

The output line amplifier uses Type-R discrete non-NFB balance circuits that have been finely tuned for preamplifier use. It also includes the newly-developed super high-quality naked foil resistors. With 1ohm emitter resistors and 3.9ohm output resistance, it delivers astonishing information detail and S/N presence for superior power preamplifier drive capabilities.

High-end resistance switching method audio volume control circuit

The best possible methods and the highest-quality parts create the best audio volume control. All the resistors in this unit are ultra high-quality, naked foil resistors. The switching relays also use the newly developed RSR-2-12D (Reference SOULNOTE Relay) ultralow loss custom relay. Volume control is configured with 144 steps in 0.5 dB intervals. Vibrancy and sound quality remain unaffected, even when lowering the volume.

RSR-2-12D (Reference SOULNOTE Relay)

An ultra-low loss glass tube sealed reed relay that performs similar to a mercury relay as a base has been further customized. This is an original custom relay created by SOULNOTE that can reach sound quality levels comparable to that of wire. Each P-3 contains 94 of these relays.