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Category: Pre-Amplifiers

Pro-Ject Phono Box DS3 B - Balanced Phono Preamplifier (Black)

Key Features

Balanced Circuit Design

  • Fully balanced audio path reduces noise and interference, especially in systems with balanced inputs.

  • Balanced outputs allow connection to amplifiers or preamps with XLR inputs for optimal signal integrity.

Support for MM and MC Cartridges

  • Selectable input for both moving-magnet and moving-coil cartridges.

  • Adjustable loading and gain options tailor the preamp to a wide range of MC cartridges for best sonic performance.

High-Quality Sound

  • Low-noise circuitry ensures quiet background and high resolution detail.

  • Precision RIAA equalisation for accurate vinyl reproduction across the frequency range.

Flexible Gain and Loading Controls

  • Adjustable gain and cartridge loading settings help optimise performance for different phono cartridges.

  • Customisation allows you to match your specific cartridge’s electrical characteristics.

Premium Build and Aesthetics

  • Solid, compact chassis finished in black to match premium audio components.

  • Front and rear panels designed for convenient access and clean integration into hi-fi racks.

Multiple Output Options

  • Balanced XLR outputs for connection to compatible balanced inputs.

  • Unbalanced RCA outputs for use with standard inputs if balanced is not available.

Description

Pro-Ject Phono Box DS3 B – Balanced Phono Preamplifier (Black)

Fully Balanced Design
The DS3 B features a true balanced circuitry that significantly reduces noise and distortion, delivering a cleaner, more detailed sound for both MM and MC cartridges.

Dual Mono Construction
Independent left and right channel circuits ensure optimal channel separation and an expansive stereo image.

Precision Cartridge Matching
Adjustable gain, impedance, and capacitance settings allow perfect fine-tuning for a wide range of cartridges.

High-Quality Components
Built with premium-grade components and a robust metal chassis to minimise interference and ensure long-term reliability.

Versatile Connectivity
Equipped with both RCA and XLR balanced outputs, along with switchable input loading for ultimate flexibility.

Audiophile-Grade Performance
Designed to deliver exceptional sound clarity, dynamics, and low noise floor—ideal for high-end vinyl playback systems.

 

Specification Details
Brand Pro‑Ject
Model Phono Box DS3 B
Device Type Balanced MM/MC Phono Preamplifier
Inputs 1 × RCA Stereo Pair, 1 × XLR Balanced Input
Outputs 1 × RCA Stereo Pair, 1 × XLR Balanced Output
Supported Cartridges Moving Magnet (MM) & Moving Coil (MC)
Gain Settings 40 dB / 45 dB / 50 dB / 55 dB / 60 dB / 65 dB
Input Impedance 10 Ω – 47 kΩ (Adjustable)
Capacitance Settings 50 pF / 150 pF / 300 pF / 400 pF
Subsonic Filter Yes (20 Hz, 12 dB/octave)
THD + Noise < 0.005% @ 1 kHz
Signal-to-Noise Ratio > 90 dB (MM) / > 80 dB (MC)
Power Supply 18 V DC Power Adapter (Included)
Finish Matte Black Aluminium
Dimensions (HxWxD) 72 × 206 × 194 mm
Weight 1.5 kg
Accessories Included Power Supply Adapter, Ground Cable, User Manual
Warranty 2 Years Manufacturer Warranty

 

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