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FUNCTIONAL DE SC RI PTION
RDA753D (Power terminals)
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RDA 754 D (Power terminals)
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RDA755D (Power terminals)
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SPEAKERS
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GND
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POWER
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POWER
GNP
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FRONT
REAR
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POWER
RCA Line Input
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input. Simply connect to the source unit using RCA type audio cables, keeping them
away from power wiring wherever possible.
HPF Crossover Adjustment-- Use this adjustment to select the crossover point.
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Remember that you must select the high pass position (HPF) of the crossover
adjustment switch first. the range of adjustment is limited between 50-250 Hz.
X-OVER Selection Switch-- This switch allows you to select the crossover. Use High
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Pass formidrange or high frequency speakers. Use Low Pass for subwoofers. In the
FLAT position, neither crossover adjustment knob has an affect.
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source unit. This is NOT a volume control. The range is between 200mVand 4V.
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Phase Shift -- Allows you to change the phase of your subwoofer from 0 to 180 degrees
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to help compensate for timing differences between drivers.
(included). The control is intended to allow theuser to control the level of gain up to the
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maximum adjustmen level set on the amplifier. The control does not add additional
boost, it only attenuates the setting that is fixed at the amplifier's control panel.
Bass Boost--This control adds 0 to +15dB. Be cautious when adding boost to some
subwoofer systems as they may not be handle the additional low frequency boost. In
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the OdB position, no bass boost is added. The LPF must be switched on for the bass
boost to activate.
Boost F[eguencJ l - - Use this adjustment to select the specific frequency that your
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amplifier Bass will boost at 40Hz-100HZ(RDA753D\RDA754D at45Hz only).
LPF C[ossoye[ Adjustmeat-- Use this adjustment to select the crossover point.
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Remember thatyou must select the Low Pass position (LPF) of the crossover
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adjustment switch first. The range of adjustment is limited between 50-250 Hz.
Status LED' s -- These lights indicate when the amplifier is powered up normally and
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when there is a protection fault . See the" Troubleshooting .. section for details on what
these useful indicators can tell you if there's a problem.
connections are connected as labeled.For RDA753D, RDA755D disapprove of bridge,
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only RDA755D RR \RL can bridge. DO NOT run 2 Ohm bridged loads on these amplifiers,
The minimum load 20 subwoofer.
Power lnout Connections -- These connections are for input power, chassis ground.and
remote turn-on. Use a minimum of 4 gauge wiring for power and ground connections.
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The terminals will handle up to 4 gauge wiring with no problem whatsoever. Be sure any
wiring that passes through.
Power Fuses -- Standard automotive type ATC/ATO fuses are used on RDA753D,
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RDA755D amplifiers. Always replace with the correct fuse size.RDA755D the built in
fuse.
--These RCA jacks allow for a normal Left and Right channel signal
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