Mains power connection and methods to switch 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 unit can be switched on and off by using 2 different methods
which are equal in priorities.
1. Using front pushbutton to switch on or into standby
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. If a trigger signal is present the unit can't be
switched off by the pushbutton.
2. Remote power on - triggers
The unit can be switched on via other Box Design components when a 12V trigger voltage is present at the
2.5mm socket marked Trigger Input. Special power-on cables (polarity
as accessories. The remote power-on signal can be relayed to further units via the Trigger Output socket. When
the 12V trigger signal is switched off, the unit will also switch off.
Trigger cables may only be plugged into the sockets when the unit is disconnected from the power
supply and from the mains. Failure to do so may result in damage of the unit.
Settings
The three push buttons on the left-hand side are used to set input impedance, input capacitance and input gain.
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 (low-output MC cartridges) and the correct input
capacitance (high-output MC and MM cartridges), into which the cartridge is designed to work. If in doubt,
please consult your dealer.
pF - all LEDs off = 47pF.
LEDs pF 100, 220 and 320 - readout always + 47pF
After disconnecting the unit from the mains, all settings will be deleted.
Examples of typical settings
Ortofon Rondo Red (Low-Output MC): Input impedance 10ohms, Input capacitance - Any setting.
Input capacitance is irrelevant for low-output MC cartridges pF, Input gain 60dB
Ortofon 2M Red (MM): Input impedance 47kohms, Input capacitance 147pF, Input gain 40dB
Ortofon X5-MC (High-Output MC): Input impedance 47kohms, Input capacitance 367pF, Input gain 40dB
Subsonic
Turn on and off subsonic filter.
© Pro-Ject Audio Systems · Pro-Ject Phono Box DS2 · Revision 2017.9.06
) in diverse lengths are available
Input impedance / ohms
Input capacitance / pF
Input gain / dB
3
Need help?
Do you have a question about the Pro-Ject Phono Box DS2 and is the answer not in the manual?
Questions and answers