Phono (MM/MC) Preamp: The Pro-Ject Phono Box S allows you to
connect a turntable with either a MM (moving magnet) or MC (moving coil)
cartridge to today's home receiver's and amplifier which do not offer a
dedicated phono input. There is a button on the back of the unit which allows
you to switch between MM or MC mode.
Metal Case: The Phono Box S's metal case shields the
electronics from vibration and electromagnetic interference.
Audiophile-Grade Capacitors: Carefully selected amplifier modules and
audiophile-grade polypropylene capacitors make it possible to enjoy your
valuable vinyl collection like never before.
Dual-Mono Circuitry: The Phono Box S provides optimal
channel separation through dual-mono circuitry and low-noise ICs.
RIAA Equalization: The Pro-Ject Phono Box S provides
amplification and RIAA equalization for both MM and MC cartridges.
Controls: The Phono Box S features various controls to make sure your
turntable sounds it best.
- Gain Levels: The phono preamp's gain level (40/43/60/63dB) can be
adjusted to match the level of your MM/MC turntable.
- Input Impedance/Capacitance: You can adjust the phono preamp's
input impedance (10/100/1000 Ohms) and input capacitance (100/200/320/420pF)
to the setting that best suits your turntable. The input impedance is locked
at 47k Ohms for MM turntables.
- Subsonic Filter: A switchable subsonic filter prevents your
amplifier and speakers of ultra low rumble below 20Hz (-12dB).
Connections: The Phono Box S features a stereo RCA input and
output, as well as a ground terminal.
- RCA: The phono preamp features gold-plated
stereo RCA connections. A stereo RCA input connects your turntable, and a stereo
RCA output connects your home receiver or amplifier. RCA cables sold separately.
- Ground Terminal: The phone preamp also has a turntable ground,
in case your turntable has a separate ground lead. This provides shielding to
the tone-arm and the sensitive circuitry in the turntable.
Outboard Power Supply: The Pro-Ject Phono Box S operates off of
standard household AC current, using the supplied AC power adapter. The external
power adapter is separate from the phono preamp to further improve sound
- Input: 100-240V~50/60Hz,
- Output: 15V - 500mA (18V)
Our Product Research Team
At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team. They verify what’s in the box, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.