Pro-Ject Audio Systems Tube Box DS - Manual (Page 3)

© Audio Trade GmbH · Pro-Ject Tube Box DS · Revision 2013.3.1
3
Input gain
40 50 220 100
dB dB
pF
F/V
pF
50dB 40dB 60dB
40
dB
50
dB
40 50
dB dB
Input impedance, variable – low-output MC cartridges
* Input capacitance is irrelevant for low-output MC cartridges
Jumper on F/ V must be inserted – see drawing below
20
50
100
200
300 400 500
600
700
800
900
1000 10
40 50 220 100
dB dB
pF
F/V
pF
F/V
Input capacitance, variable – high-output MC and MM cartridges
No jumper on F/ V – see drawing below
40 50 220 100
dB dB
pF
F/V
pF
147pF/* 47pF/*47kohms 267pF/* 367pF/*
100
pF
220
pF
220 100
pF pF
40 50 220 100
dB dB
pF
F/V
pF
F/V
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.