Centralized audio applications
4.16 EST3 Installation and Service Manual
OUT PRE-AMP = Low level audio to audio power amplifier
input.
3-ATPINT jumper settings
Refer to Figure 4-9.
Table 4-6: 3-ATPINT jumper settings
Input / Voltage Jumper setting
Pre-Amp #1, 70 Vrms P1 = 1/2
Pre-Amp #1, 25 Vrms P1 = 2/3
Pre-Amp #2, 70 Vrms P2 = 1/2
Pre-Amp #2, 25 Vrms P1 = 2/3