Pro-Ject Phono Box S2 Ultra - Phono Preamplifier

The Pro-Ject Phono Box S2 Ultra is a high-performance MM/MC phono preamplifier designed for audiophiles seeking exceptional sound quality and versatility. Priced at approximately $319, it offers a range of features that enhance the analog listening experience.

Key Features

Discrete, Op-Amp-Free Design: Utilizes a fully discrete, op-amp-free circuit with polystyrene capacitors, renowned for their superior sonic characteristics, contributing to a clean and detailed sound signature. Pro-Ject Audio USA
Adjustable Gain and Loading: Offers six gain settings (40dB, 43dB, 60dB, 63dB) and multiple input impedance (10Ω, 100Ω, 1kΩ, 47kΩ) and capacitance (100pF, 200pF, 320pF, 420pF) options, allowing precise matching with various MM and MC cartridges. project-audio.com
Subsonic Filter: Features a switchable subsonic filter (-18 dB @ 20 Hz) to eliminate low-frequency rumble and unwanted vibrations. project-audio.com
High Signal-to-Noise Ratio: Achieves a signal-to-noise ratio of 89 dB (MM) and 65 dB (MC), ensuring a quiet background for critical listening. project-audio.com
Compact and Robust Build: Housed in a solid metal enclosure measuring 103 x 37 x 119 mm and weighing 570 g, the S2 Ultra is designed for durability and minimal interference.

Description

Phono Box S2 Ultra – Luxury and audiophilia combined!

The Phono Box S2 Ultra is like no other phono preamplifier in its segment. The incredible success of our Phono Box Ultra 500 incited us to introduce this marvelously sounding phono preamp into our regular S2 line. The solid metal casing protects against interference, and the internal design remains as spectacular as before.

We are offering a fully discrete, OpAmp-less design, which enabled us to realize an incredibly harmonious sound. On top of leaving out operational amplifiers, we decided to use polystyrene capacitors, which significantly contribute to the high-end sound of the Phono Box S2 Ultra. These capacitors are known amongst audiophiles as the holy grail for phono preamplifiers. The split RIAA equalization enables a pinpoint accurate representation of the RIAA curve, a luxury many other phono preamps do not possess.

Warranty:

1-year manufacturer’s warranty

Features:

Audiophile Performance
No Operational Amplifiers used
Audiophile-grade polystyrene capacitors
Precise split RIAA equalisation
Switchable Subsonic filter –18 dB @ 20Hz
Switchable input impedance/capacitance
Four adjustable gain levels
Solid metal casing protects from interference
Outstanding sound quality
Available in silver or black

Discrete MM/MC phono preamplifier

The Phono Box S2 Ultra is like no other phono preamplifier in its segment. The incredible success of Pro-Ject’s Phono Box Ultra 500 incited them to introduce this marvelously sounding phono preamp into Pro-Ject’s regular S2 line. The solid metal casing protects against interference, and the internal design remains as spectacular as before.

Pro-Ject is offering a fully discrete, OpAmp-less design, which enables them to realize an incredibly harmonious sound. On top of leaving out operational amplifiers, Pro-Ject decided to use polystyrene capacitors, which significantly contribute to the high-end sound of the Phono Box S2 Ultra. These capacitors are known amongst audiophiles as the holy grail for phono preamplifiers. The split RIAA equalization enables a pinpoint accurate representation of the RIAA curve, a luxury many other phono preamps do not possess.