JL Audio CR-1, Руководство пользователя

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SCENARIO 3 CONNECTION DIAGRAM:
2-channel Subwoofer/Satellite System that is Bass-Managed by the CR-1 and also
shares active subwoofers AND MAIN L-R SATELLITE SPEAKERS with a separate
multi-channel home theater system
This scenario applies to hybrid home theater / 2-channel setups which will share
subwoofers and ALSO share the main left/right loudspeakers. In this setup, your
home theater receiver (or amplifier) will power your Center and Surround speakers
and pass preamp-level, Left and Right signals to the CR-1. A dedicated, separate
stereo amplifier powers the Left and Right speakers for both the multi-channel and
the 2-channel system. The subwoofer(s) will also be shared between both systems.
This scenario requires that you connect two different components to the “Main
Stereo Inputs” of the CR-1. This takes advantage of the CR-1’s independently
buffered, balanced and unbalanced input architecture.
The components that will connect to the “Main Stereo Inputs” will be your
home theater receiver or preamp/processor, and your 2-channel preamplifier.
Please note: Your home theater receiver must have preamp-level (line-level)
outputs for its main left and right channels. These will typically be unbalanced,
RCA-type outputs. CR-1 is not designed to receive speaker-level signals at its “Main
Stereo Inputs” and attempting to do so will result in very severe distortion and
possible system damage.
If one of your components has balanced outputs (XLR or TRS connectors),
connect this component’s Left and Right outputs to the balanced “Main Stereo
Inputs” of the CR-1 with the appropriate cables. Then, connect the second
component to the unbalanced (RCA-type) “Main Stereo Inputs” of the CR-1.
If neither of your components offers balanced outputs, you will need to obtain
a pair of adaptors to plug in to the balanced input connections of the CR-1. These
can be “RCA to XLR” or “RCA to 1/4-inch TRS” adaptors. Either will allow you
to connect to the balanced inputs using an RCA-type interconnect cable. This
connection will no longer be balanced.
In this connection scenario, it is intended that you use only one front-end
component at a time: i.e. either your HT receiver –OR- your stereo preamp, not both
at once. If you accidentally turn both on, the CR-1 will not be damaged, but it may
sound very strange to hear both sources playing at once.
Most home theater receivers and preamp/processors provide a single (mono)
subwoofer output; however, a few high-end receivers and processors give you dual
subwoofer outputs. Connect the receiver’s subwoofer outputs to the Left and/or
Right “Managed Bass Inputs” on the CR-1. Then, set the “Managed Bass Input”
section’s “Input Type” switch to the “Stereo” or “MONO” position, depending on
the output from your receiver (this switch will usually be set to “MONO”.)
If you connect only one subwoofer signal to a “Managed Bass Input” on the
CR-1, be sure to use the corresponding Left or Right “Output to Subwoofer” on the
CR-1. If you are using one subwoofer, set the CR-1’s front-panel “Subwoofer Output
Mode” switch to “L+R” (mono.) If you are using more than one subwoofer, you may
decide whether to choose “L+R” (mono) or “Stereo” subwoofer modes depending
on your room setup and personal preference.
When the CR-1 is connected as shown in
this scenario, the operating modes and
behaviors are as follows:
Power: On and “Crossover Function”
switch: “On”
“Outputs to Subwoofers” are low-pass
filtered by the CR-1
“Outputs to Satellites” are high-pass
filtered by the CR-1
Power: On and Crossover Function
switch: “Bypass”
“Outputs to Subwoofers” pass signals
directly from the “Managed Bass Inputs”
“Outputs to Satellites” pass signals
directly from “Main Stereo Inputs”,
unfiltered (full-range).
Power: Off
“Outputs to Subwoofers” are off
“Outputs to Satellites” pass signals
directly from “Main Stereo Inputs”,
unfiltered (full-range).
IMPORTANT:
WHEN THE CR-1 IS OPERATING IN “BYPASS” MODE, THE
“SUBWOOFER OUTPUT MODE” SWITCH ON THE FRONT PANEL WILL HAVE
NO EFFECT AND THE MANAGED BASS SUBWOOFER SIGNAL FROM YOUR
HT RECEIVER OR PREAMP/PROCESSOR WILL BE PASSED THROUGH THE
CR-1 WITH NO ALTERATION.
IMPORTANT