Pro-Ject: Phono Box S3 B Balanced Phono Preamp

LAB POINTS

• upgrade from standard preamps with audiophile grade components + True Balanced Connection
• compatible with moving magnet (MM) +moving coil (MC) cartridges
• gain / impedance / capacitance settings for proper cartridge loading
• switchable subsonic filter
• high quality metal casing offers shielding from both vibration and electromagnetic interference

“The Phono Box S3 B is an entry-level phono preamplifier that offers a fully balanced design in a neat, small package. Weve packed this tiny chassis to the brim with high-end features. One of those is our new True Balanced Connection. At Pro-Ject, balanced connections were exclusive to our RS range of products until now. The Phono Box S3 B brings those features to an incredible new entry level.” – Pro-Ject

TECH SPECS

• INPUT IMPEDANCE: 10, 50, 100, 1k, 47k ohms
• INPUT CAPACITANCE: 50, 150, 300, 400 pF
• GAIN SWITCH (+ 6dB using XLR Out sockets): 40, 45, 60, 65 dB
• SUBSONIC FILTER: 20Hz with 18dB/octave
• SNR MM (40dB): 03dBV, 110dBV – ‘A’ weighted
• SNR MC (60dB): 85dBV, 90dBV – ‘A’ weighted
• THD at 1 kHz: <0,001% MM, < 0,005% MC
• THD (20Hz-20kHz): <0,008% MM, < 0,01% MC
• RIAA EQ Curve Accuracy: <0,3dB / 20Hz - 20kHz
• OUTPUT VOLTAGE: 18V/500mA DC
• DIMENSIONS: 8.11″W x 2.17″H x 6.02″D / 206 x 55 x 153 mm
• WEIGHT: 2.05 lbs / 930 g (without psu)

COMES WITH

• power supply

ABOUT TRUE BALANCED AUDIO

• True Balanced Audio refers to a superior audio signal that results in higher sound quality with nearly zero background noise, check out our in-depth guide here
• True Balanced gear can be utilized as both balanced (with the proper components and signal path) or non-balanced
• True Balanced Audio requires a moving coil cartridge (MC) or the Pro-Ject Pick it Pro Balanced MM Cartridge
• True Balanced Audio requires a balanced audio cable (5-Pin DIN, mini XLR / XLR, or RCA > Mini XLR) connected from the turntable to the preamp
• True Balanced Audio requires a preamp that accepts balanced cables; you can output either XLR (recommended) or RCA from the preamp to speakers / amplifier
• shop all Pro-Ject True Balanced