TL Audio 5052 - Manual (Page 9)

3.4 Unbalanced Line Input.
An unbalanced line level input at a nominal level of -10dBu is also provided, on a
0.25” mono jack socket. The mating plugs should be wired as follows:
- Tip = Signal Phase (“+” or “hot”).
- Screen = Ground.
3.5 Instrument Input.
Each channel has a 0.25” jack socket on the front panel (see Figure 2). A 2 pin
(mono) jack plug is required, which should be wired as follows:
- Tip = Signal Phase (“+” or “hot”),
- Screen = Ground.
Good quality screened cable should be used, particularly for microphone or low level
sources, to prevent hum or noise pickup.
3.6 Insert Points.
The insert points are interfaced via a pair of 3 pin, 0.25” jack sockets on the rear of
the unit. These points (not to be confused with sidechain insert points – see section
3.7) are located after the initial preamp stage but before the compressor stage, and
allow an external device to be patched into the 5052 signal path.
One socket is marked ‘Send’ (which connects to the external device’s input) while
the other is marked ‘Return’ (which connects to the external device’s output).
The pin connections for both Send and Return are:
- Sleeve = Ground,
- Tip = Signal Phase (“+” or “hot”),
- Ring = Signal Non-Phase (“-” or “cold”).