3
WIRING & CONNECTIONS
It is important to read this manual thoroughly before starting your installation and always plan accordingly.
Before installing, disconnect the negative (ground) wire from the vehicle’s battery to avoid damage to the
vehicle or yourself. Following all guidelines will help provide years of enjoyment with your S
.
TEG DSP
Power Supply:
Œ
Ground (GND):
The ground wire must be connected to a metal part of the vehicle with ground plane
Ÿ
back to the main battery ground attachment point (a.k.a. chassis ground). This wire should be as short
as possible, but no longer than 2ft (60cm), with minimum gauge of 18AWG. The ground wire should be
terminated with a ground specific or ring terminal and securely bolted to the vehicle with star or lock
washer and nut to prevent from coming loose. The chassis ground connection point should be scuffed
to the bare metal.
Ÿ
Power (+12V):
The co12V power connection should be made at the vehicle’s main battery,
securely connected with a ring terminal and protected with an in-line fuse within 18in (45cm) from the
positive battery terminal. The SDSP68 requires a 2A external fuse (not included) with minimum wire
gauge of 18AWG. Do not install the fuse until all other system connections have been made.
Ÿ
Remote Turn-On (REM IN):
If the source unit has a remote output wire or if a switched ignition wire is
available, connect it to the REM IN wire for turning on the amplifier and select ACC from the turn-on
mode switch
.
~
Ÿ
Remote Output (REM OUT):
This wire provides a +12V remote output trigger for turning on amplifiers
or other related audio equipment, and is also capable of driving a standard 12V automotive relay.
RCA Outputs:
These RCA jacks are for connecting up to 8-channels of line level signal outputs from the
SDSP68 to external amplifier(s). Use quality interconnects to ensure stable connections and minimize
the possibility for induced noise.
USB PC Control:
This USB Type-B port is for connecting to a Windows PC with the supplied cable to run
Ž
the DSP tuning software and make changes to the internal settings. Note that if the optional DRC
remote is also connected, it is recommended to not use it while connected to the PC software.
Bluetooth:
This USB terminal is for connecting the optional Bluetooth dongle (sold separately) and is
selectable as the BT source via the PC software section
②
or optional DRC remote.
Remote Control:
J
jack
This R 45
is for connecting the optional DRC digital remote controller (sold
separately), which
remote control of the SDSP68
provides
for source select, master volume, sub volume,
mute and preset load.
Optical Input:
‘
This port is for connecting an external digital source with an optical (Toslink) cable and is
selectable as the SPDIF source via the PC software section
②
or optional DRC.
’
Coax Input:
This RCA jack is for connecting an external digital source with a coaxial cable and is
selectable as the COAX source via the PC software section
②
or optional DRC.
High-Level Inputs:
“
This terminal/harness is for connecting up to a 6-channel high-level source such as
a factory radio or amplifier, and is selectable as the MAIN source via the PC software section
②
or
optional DRC remote. Note that if the source’s output signal voltage exceeds 10.5Vrms, a external line
output converter should be used and connected via the RCA input jacks
instead. Also note that
}
although the harness provides an audio ground wire labeled GND, it should never be connected except
in the extremely rare case of a common ground source.
”
RCA Inputs:
These RCA input jacks are for connecting up to a 6-channel line level source such as an
aftermarket radio and is selectable as the MAIN source via the PC software section
②
or optional DRC.
Use quality interconnects to ensure stable connections and minimize the possibility for induced noise.
•
Auxiliary Input:
This 3.5mm input jack is for connecting a low level source such as portable MP3 player
or smartphone and is selectable as the AUX source via the PC software section
②
or optional DRC.
Turn-on Mode Select:
•
This switch is for selecting which method is used for turning on the DSP. The
default setting ACC is for a sw12V wire connected to the REM IN wire. If a wired trigger is
unavailable, select AUTO for
detection from the high-level inputs for automatic turn-on. If the
DC-offset
high level inputs
or the source does not contain DC-offset, a +12V switched trigger
are not used
connected to REM IN will be required.
Power LED:
•
This LED indicates when the DSP is turned on. If not illuminated, check the power, ground
and remote wire connections and external fuse accordingly. If using the AUTO setting of the turn-on
mode switch
for a high-level source and the unit does not turn on, it likely means there is no DC-
~
offset signal present and a remote wire will need to be connected to the REM IN wire with the switch set
to ACC instead.
Notes:
Ÿ
Although both high-level and RCA inputs are provided, only one may be connected at a time, as they
share the same assigned MAIN input source and are not independently selectable.
Ÿ
If more than one source is connected, the optional DRC remote is required to change sources without the
PC software. If only one source is connected, select it from the PC software during initial setup.
