PROJECT PHONO BOX S2 ULTRA

The Phono Box S2 Ultra stands out in the world of phono preamplifiers by combining high performance and meticulous aesthetic detail in a single compact and refined device. Its structure is entirely made of solid metal, a choice that not only gives it an elegant and robust appearance but also effectively protects the internal circuits from possible external interference. This model is designed to deliver an exceptionally harmonious sound, thanks to a fully discrete layout with no operational amplifiers—an uncommon feature in its price range, highly valued by audiophiles for its direct impact on sound quality.

Inside the circuit, polystyrene capacitors are used, components regarded as a true benchmark in the world of high-fidelity audio. These significantly contribute to defining a precise, natural, and refined sound, positioning the Phono Box S2 Ultra among the most sought-after devices by vinyl enthusiasts. Another distinctive feature is its split RIAA equalization, which allows for an extremely precise rendering of the equalization curve required by records, offering faithful and detailed sound reproduction—a quality not always found in preamplifiers within the same category.

The Phono Box S2 Ultra also offers features designed for precise adaptation to different setups. It includes an optional subsonic filter, capable of reducing unwanted frequencies below 20 Hz by 18 dB, particularly useful in the presence of slight record warping or vibrations. Adjustable options for input impedance and capacitance are available as well, along with four selectable gain levels, allowing for optimal matching with a wide range of phono cartridges. Every detail of its design is aimed at ensuring a high-level listening experience, with a simple setup and sound quality that impresses from the very first play.

Technical specifications:

• Input impedance: 10 Ω; 100 Ω; 1 kΩ; 47 kΩ
• Input capacitance: 100 pF; 220 pF
• Selectable gain: 40 dB; 43 dB; 60 dB; 63 dB
• Subsonic filter: -18 dB at 20 Hz
• Signal-to-noise ratio: 89 dB V (MM)
• Total harmonic distortion (THD): 0.00052%
• RIAA accuracy: less than 0.4 dB from 20 Hz to 20 kHz
• In/Out connections: 1 pair of RCA connectors
• Power consumption: 18 V; 80 mA
• Outboard power supply: 18 V DC; 500 mA
• Dimensions (W x H x D): 103 x 37 x 119 mm
• Colour: silver or black
• Weight: 570 g without power supply