Pro-Ject Tube Box DS – Tube Phono Preamplifier

Bring Warmth and Musicality to Your Vinyl

The Pro-Ject Tube Box DS is a premium tube phono preamplifier designed for audiophiles who want the richness and warmth of analog sound. By combining modern engineering with the natural musicality of tubes, it delivers an immersive vinyl experience with clarity, depth, and detail.

Tube-Driven Sound Performance

At the heart of the Tube Box DS are two high-quality ECC83 (12AX7) tubes in the output stage. These tubes create a smooth, engaging sound signature with excellent dynamics, natural tonality, and reduced harshness. Unlike solid-state designs, the tube circuitry adds warmth and depth, bringing out the soul of your vinyl collection.

Wide Cartridge Compatibility

The Tube Box DS is designed to work with both MM (moving magnet) and MC (moving coil) cartridges, making it highly versatile. Its front-panel input loading control allows continuous adjustment of impedance from 10 Ω to 1,000 Ω, ensuring optimal matching with virtually any cartridge. For MM and high-output MC cartridges, adjustable capacitance settings are also available.

Flexible Gain and Control Options

With selectable gain levels of 40 dB, 50 dB, and 60 dB, the Tube Box DS can be perfectly tailored to your cartridge’s output. A built-in subsonic filter helps eliminate low-frequency rumble caused by warped records, protecting your speakers and improving overall playback.

Precision Engineering and Build Quality

The Tube Box DS is built with ultra-low-noise circuitry and precise RIAA equalization to ensure accurate, faithful reproduction of your records. Its rugged all-metal chassis provides excellent shielding against vibration and interference, while the gold-plated RCA connectors ensure reliable connections and minimal signal loss.

Elegant Design with Practical Features

In addition to its audiophile-grade sound, the Tube Box DS offers a sleek, compact design that fits neatly into any hi-fi setup. The front-mounted on/off switch and impedance control make adjustments quick and easy. The visible tubes also add a touch of classic elegance, allowing you to see the glow of analog warmth in action.

Key Features

• Premium tube phono preamplifier for MM & MC cartridges

• Dual-mono design with ECC83 (12AX7) output stage

• Continuously variable impedance control (10 Ω – 1,000 Ω)

• Adjustable capacitance for MM and high-output MC cartridges

• Switchable gain: 40 dB / 50 dB / 60 dB

• Built-in subsonic filter to reduce low-frequency rumble

• Precise RIAA equalization with ultra-low noise circuitry

• Gold-plated RCA connectors for optimal signal transfer

• Rugged metal chassis for shielding and durability

• Compact, elegant design with visible glowing tubes