Input Panel - JBL SR47-X User Manual

All SR-X models are fitted with the internal network mode selector.
The ability to select the mode of operation provides the sound system user flexibility in
the system configuration, and also permits the system to be upgraded at a later date. By
simply removing the input panel and changing the position of a heavy duty connector,
the system can be configured as either a bi-amp or a passive system. After replacing the
input panel, the network position is indicated on the connector plate panel. This pro-
vides a truly tamper resistant solution to avoid the horrors of a mis-configuration.
In passive operation, a system can be operated with a minimum of only one amplifier
and no additional system controllers. In bi-amp operation, the system can be operated
for maximum transducer performance and will require the use of additional amplifiers -
and an electronic crossover (see "Crossovers and Controllers"). For Subwoofer systems
with more than one transducer, the same ability to select the mode of operation is provided - but instead of
bi-amp/passive selection, the input can be configured for either parallel woofers (4 ohm) with ± 1 or ± 2
Pass-Thru or individual transducer access (2 x 8 ohm). This can be useful for assuring maximum power transfer
from the amplifier to the transducers. The SRX4718 also has a mode selector for ± 1 or ± 2.
Please Note: There are no passive network components in the circuit when the Bi-amp mode is selected.
(Except: SR4732X and SR4735X which retain a crossover section between midrange and HF.)
1. Remove 6 connector plate retaining screws
and remove the plate.
2. Turn plate over and locate the male connector.
3. Pull out connector and firmly place in socket of desired
system mode - you should be able to see the yellow
indicator in the desired mode window.
4. Replace plate and secure with 6 screws.
Please Note: For SRX4715X - SRX4719X, The connector is split
to permit discrete mode operation.
Internal Network Mode Selector
Changing the Input Mode Connector

Input Panel

Input Panel
SR-X Series
Connector
9