Selecting Input Modes - Soundstream Reference Series 604 Installation Manual

SETTING THE CROSSOVER MODES
The REFERENCE604 incorporates a sophisticated, fully adjustable electmnic
crossover for each of its two pairs of channels, as well as its crossover outputs.
The REFERENCE604 can drive a full system with a second amplifier without
need of an outboard electmnic crossover.
Before installing the amplifier. make certain the switches on the bottom are set
to the correct positions. Pages 16 - 21 contain six sample systems illustrating
switch settings. After setting the switches, be sure to install the hole plugs
included with the amplifier.
LOW PASS
The low pass crossover is used for sending only low frequency information to
particular speakers (or crossover outputs). Activate the low pass crossover if
you intend to drive subwoofers. Low pass signal is derived from all four inputs,
allowing constant bass (low pass) with front to rear fading. You can later adjust
the exact frequency from the front of the amplifier. For
is one low pass setting for all channels (and
frequency information.
HIGH PASS
The high pass crossover is used for sending only midrange and high frequency
information to particular speakers (or crossover outputs). Activate the high pass
crossover if you intend to drive satellite or coaxial speakers in the system along
with subwoofers. Even if your system does not include subwoofers it may be
helpful to activate the high pass crossover with smaller speakers to protect them
from low frequency information. You can later adjust the exact frequency from
the front of the amplifier. The high pass frequency for Channels 1 & 2 is
adjusted separately from the high pass frequency for Channels 3 & 4.
ofadjustment, there
crossover
outputs) receiving low
INSTALLATION STEP 3 p

SELECTING INPUT MODES

The REFERENCE604 can be driven with either one or two pairs of stereo inputs.
If your source unit has front and rear outputs, you can take advantage of its
fading capability by driving the REFERENCE604 with two pairs of inputs. In
addition, if you have another amplifier, you can drive it with the outputs of the
Coherent Sterep mode with identical left and right channels. or in a "mixed-
mono" mode allowing you to operate each pair of channels in stereo (not
Coherent Stereo) and mono simultaneously.
CHANNEL OPERATION WfTH 4 CHANNELS OF INPUT
4
. Input to Channels 1 8 2 and set stereo switch to either "Coherent Stereo" ox
'Mixed-Mono"
. Input to Channels 3 & 4 and set input switch to "3 & $'; stereo stitch to either
"Coherent Stereo' or 'Mixed-Mono"
CHANNEL OPERATION WlTH 2 CHANNELS OF INPUT
4
Input to Channels 1 & 2; set stereo switch to either "Coherent Stereo" or
l
'Mixed-Mono"
. Channels 3 & 4: set input switch to 'Internal From Ch 1 8 2"; stereo switch to
BRIDGED 2 CHANNEL OPERATION WITH 2 CHANNELS OF INPUT
.
Input to Channel 2: set stereo switch to "Mono"
Input to Channel 4: set input switch to "3 8 4"; stereo stitch to "Mono"
l
CHANNEL OPERATION WITH 2 OR 3 CHANNELS OF INPUT
3
Either half of the REFERENCE604 can be bridged mono while the other half
operates in stereo.
'NOTE: When in "Mono'; only fhe right channel input is active. If your inputs to
the amplifier are stereo, you can sef the stereo switch to
inputs. The amplifier
both
and use
and right to mono.