M-Audio SP-8B [4/12] Rear panel

Rear Panel:

1. XLR INPUT: This jack accepts XLR input connections with either balanced or

unbalanced wiring. The signal of the XLR INPUT is summed together with

the TRS INPUT through a balanced input amplifier, allowing both inputs to

be used simultaneously. Input specifications apply to both inputs. The input

wiring of an XLR connector should be as follows:

INPUT SIGNAL XLR CONNECTIONS

+ PIN 2

- PIN 3

Shield PIN 1

2. TRS INPUT: This jack accepts a TRS connector, either balanced or unbalanced

wiring. For balanced wiring, a three-conductor TRS plug is necessary. The

input wiring of a TRS connector should be as follows:

INPUT SIGNAL TRS CONNECTIONS

+ TIP

- RING

Shield Sleeve

Unbalanced wiring works with either a two- or three-conductor TRS

connector. Atwo-conductor TRS plug automatically grounds the minus signal

input, whereas a three-conductor TRS plug wired unbalanced provides the

option of leaving the minus open or grounded. We recommend that you

ground the unused input.

The TRS input is summed together with an XLR input through a balanced

input amplifier, allowing both inputs to be used simultaneously. Input

specifications apply to both inputs.