Manual

Introduction
Welcome to Wāvtech, exceptional mobile audio integration products for audiophiles. Our products are
engineered to provide a truly remarkable listening experience. Built for the professional installer, our
OEM integration and signal processor models are simply the best solution available for unlimited sound
system upgrades while retaining the factory receiver.
ΠPower Indicator: This red LED indicates when the link4 is powered on. Once illuminated, there will be
a short delay before audio signal output is enabled. During initial power connection, the LED may
illuminate for a brief period.
 Ground Jumper: For selecting between chassis, isolation or 200Ω for the internal audio signal ground.
Chassis ground is the default setting and is ideal for most applications due to the differential input
stage. In the rare case there is system noise present after all other installation countermeasures,
changing this jumper to ISO or 200Ω may reduce or eliminate the noise.
Ž Power Supply Terminal: For +12V battery, chassis ground, remote input and remote output wire
connections. A minimum of 18AWG wire is recommended for power and ground connections. Always
protect the +12V power wire with a 1-amp fuse.
 Speaker Level Input Terminals: For up to four channels of speaker level (a.k.a. high level) input
connections to the source. Input signals ranging from 2Vrms to 20Vrms will produce up to 10Vrms
RCA output at maximum to minimum gain setting. Dynamic music signal peaks are allowable up to
40Vrms, but will be clipped.
‘ Auxiliary Input Jack: This 3.5mm stereo AUX input is for the connection of a portable device such as a
smartphone or MP3 player, but may also be used for other low level (a.k.a line level) sources using a
3.5mm adapter. AUX may be selected as a separate source via the multi-function remote, or
programmed as the primary source for stand-alone systems where the speaker level inputs are not
used (see pg4). Input signals ranging from 0.5Vrms to 5Vrms will produce up to 10Vrms RCA output at
maximum to minimum gain setting.
’“ RCA Output Jacks: These four channels of RCA line level outputs are for signal connection to your
amplifier(s). CH1/2’s output will depend upon which INPUT CH setting is selected for CH1/2 (see pg3),
while CH3/4 will always pass through its input signal directly. When selected, the AUX input will
supply left/right stereo signals to both CH1/2 and CH3/4 outputs. Use quality interconnects to ensure
stable connection and minimize the possibility for induced noise.
” Remote Level Control Jack: This RJ45 jack is for connecting the supplied cable to the external multi-
function remote controller. A standard ethernet cable may also be used.
• Mounting Tabs: These mounting tabs are pre-attached and should be used to properly secure the
link4 during installation with screws or cable ties. They are removable if the unit can be safely secured
by another method.
Connections & Functions
Features
Ÿ 4-Channel Line Output Converter
Ÿ 4-Channel Summing Processor
Ÿ Multi-Function Remote (patent pending)
 Master Volume Control
 AUX Volume Control
 Independent CH3/4 Level
 Source/Function Select
Ÿ AUX 3.5mm Input
Ÿ Differential Balanced Inputs
Ÿ Low Impedance Outputs
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Ÿ Independent Variable Gains with Clip LEDs
Ÿ 2ch/4ch Input Select
Ÿ 2-Way Summing with Retained CH3/4 Level Control
Ÿ Auto Turn-On via DC-Offset or Audio Signal Detect
Ÿ Generated +12V Remote Output
Ÿ OEM Load Detect Compatible
Ÿ Selectable Ground Isolation
Ÿ Detachable Power and Speaker Input Terminals
Ÿ Professional Grade Panel Mount RCA Output Jacks
Ÿ Aluminum Chassis w/Detachable Mounting Tabs
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