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Power Supply Terminal:
For +12V battery, chassis ground, remote in 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 Terminal: For left and right channel speaker level (a.k.a.
high level) connections to the source. Input signals ranging from 2Vrms to
20Vrms will produce up to 10Vrms RCA output from maximum to minimum
gain. For factory amplifiers with more than 20Vrms signal or if the linkD’s
output is too high for the connected aftermarket amplifier(s) with all gains at
minimum, internal jumpers are available to reduce the input sensitivity range
by half (-6dB) for 4Vrms up to 40Vrms.
Clipping Indicator: This yellow LED indicates when the output signal is at
maximum level before distortion (clipping) occurs. It will be dimly lit just
before the onset of clipping, and full bright at clipping. If the connected
amplifier(s) input can handle full 10Vrms output from the linkD, then the gain
is set correctly when source unit is at its maximum unclipped volume and this
LED is just starting to flicker. It is likely, however, that gain will need to be
reduced to match your amplifier(s) maximum input capability or optimize
source volume range.
‘
Gain Adjustment: This adjustment is for matching the output signal level of
the linkD with the maximum unclipped signal range provided by your source
and the maximum input capability of your amplifier(s). Follow proper gain
setting procedures to ensure optimum source volume range with minimum
chance for clipping at any point in the signal chain. Aside from music, a 1kHz -
10dBfs signal tone may also be used for the tuning process to ensure proper
headroom and gain overlap for typical music recording levels.
’
RCA Input Jacks: For left and right channel low level (a.k.a. line level) signal
connections to the source unit. Input signals ranging from 0.5Vrms to 5Vrms
will produce up to 10Vrms RCA output at maximum to minimum gain. These
inputs are differential, but may be set to unbalanced via internal jumpers if
necessary.
“
RCA Output Jacks: For left and right channel line level signal connections to
your amplifier(s). Use quality interconnects to ensure stable connection and
minimize the possibility for induced noise.
”
Mounting Tabs: These mounting tabs are pre-attached and should be used to
properly secure the linkD during installation with screws or cable ties. They
are removable if the unit can be safely secured by another method.
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