Balanced phono preamplifier, dual mono design.
Discrete op-amp-free circuitry, passive/split RIAA EQ
Compatible with MM and MC cartridges
Selectable impedance (10–1000 Ω) and capacitance settings
Gain: 40–65 dB (+6 dB via XLR)
Inputs: RCA, XLR, 5-pin mini XLR
Outputs: Balanced RCA and XLR
Subsonic filter (20 Hz, 18 dB/oct.)
If you make the payment via bank transfer, you will receive an extra 3% discount on your order.
Would you be interested in trading in a device when purchasing this item?
The Pro-Ject Phono Box DS3 B elevates the vinyl experience with a fully balanced architecture, previously reserved for the brand’s Reference line and now available in a more accessible format. Designed and built in Europe, it combines balanced connections, discrete circuitry, and seamless load adjustment, delivering audiophile performance with any MM or MC cartridge.
Thanks to its innovative True Balanced connection, the Phono Box DS3 B unleashes the full potential of MC cartridges, filtering out environmental interference (Wi-Fi, Bluetooth, household appliances) and ensuring a cleaner, more natural, and dynamic signal. It also allows two turntables to be connected simultaneously, storing the settings for each input for maximum convenience.
The rigid steel and aluminum chassis provides outstanding isolation from vibrations and interference, while optional magnetic wooden side panels add a refined aesthetic touch.
Dual-mono design with a fully balanced gain stage.
Passive split RIAA equalization with minimal deviation from the curve.
100% discrete circuitry, no op-amps, for more natural sound.
Stepless impedance adjustment (10–1000 ohms) and selectable capacitance.
Selectable gain from 40 to 65 dB (+6 dB via XLR outputs).
Compatible with both MM and MC cartridges.
Subsonic filter (20 Hz, 18 dB/octave).
Inputs: RCA, XLR, and 5-pin mini XLR.
Outputs: RCA and balanced XLR.
12V trigger connection for system integration.
Input impedance: 10–1000 Ω (variable) / 47 kΩ fixed.
Input capacitance: 50 / 150 / 300 / 400 pF.
Gain: 40 / 45 / 50 / 55 / 60 / 65 dB (+6 dB via XLR).
SNR MM: 104 dBV (111 dBV A-weighted).
SNR MC: 85 dBV (91 dBV A-weighted).
THD: <0.001% (MM, 1 kHz) | <0.004% (MC, 1 kHz).
THD (20 Hz–20 kHz): <0.005% (MM) | <0.01% (MC).
RIAA curve accuracy: <0.25 dB (20 Hz–20 kHz).
Power supply: 18V / 500 mA DC.
Power consumption: max. 290 mA, <0.5 W in standby.
Dimensions: 206 × 72 × 194 mm (205 mm with connectors).
Weight: 1.48 kg (without power supply).
