Safety instructions, Subsonic filter, Settings – Pro-Ject Audio Systems Tube Box DS User Manual
Page 2: Examples of typical settings
© Audio Trade GmbH · Pro-Ject Tube Box DS · Revision 2013.3.1
2
Dear music lover,
thank you for purchasing a PRO-JECT AUDIO phono amplifier.
In order to achieve maximum performance and reliability you should study these instructions for use carefully.
!
Warning of a hazard for the user, the unit or possible misuse.
Important notice.
Safety instructions
!
AC outlet voltages vary from country to country. Before connecting to the mains, make sure that the
voltage in your area meets the voltage requirements printed on the power supply.
The power supply is used to disconnect the unit from the mains. Make sure that the power supply is easily
accessible at all times.
Never handle the device, the power supply while your hands are wet or damp.
Avoid letting liquids enter the device or the power supply. Never place any item containing liquid,
such as a flower vase on or near the device. Never spill any liquid on the device or the power supply.
Never place any naked flame sources, such as lighted candles on or near the device. The product shall not
be used in damp or wet locations, next to a bathtub, sink, swimming pool or any other similar conditions.
Subsonic Filter
Subsonic
OFF
Subsonic
ON
Subsonic
ON OFF
Settings
Use the dip switches at the back of the unit and the rotary control at the front to set input gain, input
capacitance and input impedance. Please set both channels equally.
!
To alter settings the
unit must be disconnected from the power supply and the amplifier.
Examples of typical settings
Ortofon 2M Red (MM)
input gain 40dB, input capacitance 147pF, input impedance 47kohms
40
50
220
100
dB
dB
pF
F/V
pF
Ortofon X5-MC (High-Output MC)
input gain 50dB, input capacitance 367pF, input impedance 47kohms
40
50
220
100
dB
dB
pF
F/V
pF
Ortofon Rondo Red (Low-Output MC)
input gain 60dB, input capacitance *, input impedance 10ohms.
* Input capacitance is irrelevant for low-output MC cartridges
40
50
220
100
dB
dB
pF
F/V
pF
20
50
100
200
300 400 500
600
700
800
900
1000
10