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Pro-Ject Phono Box S BLACK

MM/MC Phono Preamplifier

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Pro-Ject Phono Box S BLACK Details

Pro-Ject Phono Box S: Add your turntable to any system and enjoy high-performance analog sound

Pro-Ject Partner

  • Metal case shields the electronics from vibrational and electromagnetic interference
  • Optimum channel separation through dual-mono circuitry
  • Special low-noise integrated circuits used
  • Gold-plated RCA connection sockets
  • Outboard power supply included

If you want to hook up your turntable to your system but your receiver, preamp, integrated amp, or mini-system doesn't have a phono input, the Pro-Ject Phono Box S phono preamplifier is the perfect solution. It's compatible with both moving magnet and moving coil cartridges, so you can count on proper matching with virtually any turntable and cartridge combination. Low noise, low distortion and a flat RIAA equalization curve with 60db gain (MC) deliver high-fidelity performance.

With a wide range of setting parameters, the Phono Box S can meet the needs of almost any phono cartridge on the market. A switchable subsonic filter prevents ultra-low rumble below 20Hz. Carefully selected amplifier modules and audiophile-grade polypropylene capacitors make it possible to enjoy your valuable vinyl collection like never before! The class-leading music reproduction of Phono Box S gives pure dynamics, full transparency, analogue warmth, bass texture, detail resolution and purity of all audible frequencies.

You'll enjoy the accuracy and warm sound for which vinyl is known, as Pro-Ject implements its sleek, simple design using only the best possible parts. The compact metal case shields the circuitry inside from interference to ensure clean sound while the gold-plated connections resist corrosion for the best signal transfer possible.


  • Amplification and RIAA equalization for MM and MC cartridges
  • Metal case shields the circuitry from vibration and electromagnetic interference
  • Small size allows placement near turntable
  • Dual-mono circuitry for optimal channel separation
  • Switchable Subsonic filter 12dB @ 20Hz
  • Switchable input impedance/capacitance
  • 4 adjustable gain levels
  • Special low-noise integrated circuits used
  • Gold plated RCA phono jacks used
  • Outboard power supply included

Additional Information

Name Pro-Ject Phono Box S BLACK
Sub Title MM/MC Phono Preamplifier
Manufacturer Pro-Ject
Manufacturer Part# PHONOBOX S BLK

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  • Input impedance: 10/100/1000 Ohms(MC)/ 47kOhms (MM)
  • Input capacitance: 100/200/320/420pF
  • Gain switch: 40/43/60/63dB
  • Subsonic switch: -12dB @ 20Hz
  • Signal-to-noise ratio: MM: 86dB (94dB – IEC -A), MC: 68dB (75dB - IEC -A)
  • THD: 0,01% MM/ 0,05% MC
  • RIAA deviance: max. 0,4dB / 20Hz - 20kHz
  • In/Out sockets: 1 pair RCA connectors
  • Power consumption: 18V/85mA
  • Oversized power supply: 18Volt DC/500mA
  • Dimensions (WxHxD): 103 x 36 x 104 mm (4.1" x 1.4" x 4.1"), 103 x 36 x 115 mm (with sockets)(4.1" x 1.4" x 4.5")
  • Face plate colour: silver or black
  • Weight: 570 g net
  • Audiophile Performance
  • Dual mono configuration
  • Audiophile-grade amplification modules
  • Audiophile-grade polypropylene WIMA capacitors
  • Precise RIAA equalisation
  • Switchable Subsonic filter –12dB @ 20Hz
  • Switchable input impedance/capacitance
  • 4 adjustable gain levels
  • DC power supply (< 1 watt standby power)
What's in the Box
Phono (MM/MC) pre-amplifier
AC power adapter (with attached 58" DC cord)