Preamplifier

Premium Silver/Premium Black

Fully integrated ultralow-loss custom relay RSR-2-12D and naked foil resistor

A monster preamplifier for truly live and enjoyable music performances

Type-R Circuits

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 SN presence for superior power preamplifier drive capabilities.

Volume Control Circuit

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.

GND Switching Input Selector

One major factor affecting sound quality deterioration in preamplifiers is GND loops and noise intrusion when connecting multiple sound sources. One way to eliminate this problem is to adopt a switching method on the GND and signal end so that unselected devices are held in a state where their connectors are unplugged. In addition, to avoid any interference from the relay connection, the selectors in this unit completely use the RSR-2-12D.

Dual Monaural Construction

This unit utilizes a dual monaural construction that employs two identical and dedicated sets of I/O terminals, circuit boards, power supply circuits, power transformers, relay drive circuitry, and relay power supplies for the left and right channels. The microcomputer power supply, including the transformer, is also completely separate. A photocoupler keeps control signals completely separate from the relay, the only point of contact with the signal system.

Separate GND

The left and right channel, and control systems each have a ceramic-insulated chassis to achieve complete separation of the left, right and control GND. Each GND can be connected through the rear switch settings, but because each GND is completely separate, the listening experience offers an incredible expansive three-dimensional sound field with expressive, natural sound.

Power Transformer

Each side of the analog power transformer uses a 280 VA large-scale non-epoxy resin filling toroidal transformer. Including the control transformer, this unit can reach a total 600 VA and the strongest capacity in SOULNOTE history. The transformer's audible drive capacity improves in proportion to better regulation made possible by the larger capacity. The P-3's high drive capabilities will change the grade of the power amplifier and the loudspeaker.

Additional Features

• Vertical transformer mounting to prevent harmful leakage flux
• Optical rotary encoder with double bearings & flywheel for precise volume control
• 3-point spike grounding to eliminate transformer vibrations
• Unfixed AC inlet base to prevent rear panel dumping
• Audiovisual source bypass function with zero gain
• Floating construction for natural sound quality
• GND anchor with ceramic washers for expansive soundscape
• Multiple device connection system via UART signals

Specialized Components

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.

Ultra High-Quality Naked Foil Resistors

Artificial satellite grade ultra-high precision foil resistors with exceptional temperature properties have been customized with an emphasis on sound quality. These ultra-high sound quality resistors were developed in-house and employ a naked foil design to eliminate dumps with mold resin. Each P-3 contains 156 naked foil resistors.