Owner's Manual

7
Example-5: 2-way Summing (4-in/4-out) with AUX
Notes:
Ÿ For factory systems without an available full-range signal, the Link4 can be used to sum 2-way signals together. When
CH1+3/2+4 is selected for CH1/2’s input, the summed left channel (CH1+3) and right channel (CH2+4) signals are
routed to the CH1/2 outputs. Use CH1/2 and CH3/4 gains to match levels for as flat a frequency response as possible.
Since CH3/4’s input signal is always passed through to its output, it may also be useable depending upon its frequency
response. In this system example, CH3/4’s signal is factory low-passed for a front door mid-woofer that provides a
useable low frequency response for a subwoofer and allows an appropriate LPF setting to be made at the amplifier.
This configuration also retains use of the multi-function remote’s CH3/4 level function as a sub level control.
Ÿ When both Main and AUX inputs are used, select either remote system Type-2 or Type-4 which provide source select
and AUX volume functions. If master volume is required for Main input, select Type-4.
Notes:
Ÿ For systems where a full-range signal is not available for the desired channels such as front speakers for retaining
fading capability from the factory radio, the link4 can be utilized purely as a 2-way summing line output converter
without remote. This example shows the link4 summing the factory’s front 2-way signals to full-range so crossover
points can be altered at the aftermarket amplifier for a bi-amped component set. Depending upon frequency
response of the factory channels tapped for the link4’s CH3/4 input, its pass-through output may also be useable. If
rear speakers are retained and/or powered by the factory amplifier, adjust gains accordingly for matched unclipped
output and optimized sytem volume range.
Ÿ The link4 may also be used in conjunction with other Wāvtech models for converting additional channels or adding
features. In this system example, a bassFREQ provides additional signal conversion for a mono amplifier as well as
remote sub level control, fully adjustable parametric EQ, variable -24dB/oct low-pass and subsonic filters.
CH1/2
+12V
GND
REM
OUT
RCA
OUT
+12V
GND
RLC
Example-6: 2-way Summing (4-in/2-out) and System Expansion
AUX
CH3/4
CH1/2
+12V
GND
or
Ÿ Main Vol
Ÿ Main CH3/4
Ÿ AUX Vol
Ÿ AUX CH3/4
REM OUT
Type-4
Type-2
RLC
CH1/2
SPK IN
CH3/4 SPK IN
CH1/2
SPK IN
CH3/4
SPK IN