Bogen SI35A - Manual (Page 15)

External Booster Amp
An external booster amplifier (Bogen Model BPA60) can be connected when the application requires more than
35 watts. Using an external amplifier disconnects the internal 35W amp of the MCP35A. To install, connect a
RCA cable from the MCP35A LINE OUT jack to the Hi-Z input jack on the rear panel of the BPA60 amplifier.
Connect another cable from the 25V output terminals of the booster amplifier to a 1/4” stereo phono plug wired
as shown in the figure below. Insert this into the jack labeled 25V BAL INPUT on the MCP35A.
15
BPA60