Manual

7
Example-5: 2-way Summing & 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
content. In this system example, CH3/4’s signal is low-passed for a factory midrange so is useable for the subwoofer
channel and allows for LPF adjustment at the amplifer. 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 content
of the signals 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 products for converting additional channels or adding
features. In this system example, a bassFREQ provides additional signal conversion for a mono amplifier as well
remote sub level control, parametric EQ and -24dB/oct crossover.
CH1/2
+12V
GND
REM
OUT
RCA
OUT
+12V
GND
RLC
Example-6: 2-way Summing 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