Mains Power Connection And Switching The Unit On And Off; Settings; Input; Cartridge Settings - Pro-Ject Audio Systems Phono Box S3 B Instructions For Use

Mains power connection and switching the unit on and off

Connect the low voltage plug from the power supply to the Power 18V socket of the preamplifier before
connecting the power supply to the mains.
The pushbutton on the front panel of the unit alternately turns the power on or returns it to standby mode. The
blue LED on the front panel shows that the unit is powered on.

Settings

Input

Selects balanced (5-pin mini XLR) or unbalanced (RCA) input.
2 turntables can be connected to the preamplifier and this button acts as input selector, settings for
each input are stored in memory.

Cartridge settings

The three push buttons on the right-hand side are used to set input impedance (Loading Ohms), input
capacitance (Loading pF) and input gain (Gain dB).
To find out which type your cartridge is please consult the literature accompanying your cartridge. The literature
for cartridges should also specify the correct input impedance and input capacitance, into which the cartridge
is designed to work. If in doubt, please consult your dealer.
Examples:
Ortofon 2M Red (MM):
Input impedance 47kohms, Input capacitance 147pF, Input gain 40dB
Ortofon Quintet Red (Low-Output MC):
Input impedance 50 ohms, Input capacitance - Any setting (not relevant for low-output MC), Input gain 60dB
Ortofon X5-MC (High-Output MC):
Input impedance 47kohms, Input capacitance 367pF, Input gain 40dB

Subsonic

The push button turns the subsonic filter on and off. The LED shows that the filter is turned on.
© Pro-Ject Audio Systems · Pro-Ject Phono Box S3 B · Revision 2021.10.27
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