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help.retromanufacturing.com
Power and Ground Connections
Electrical System Test
The Technophonic amplifier is designed to work within a range of 12 volts
to 14.4 volts DC. Before connecting any wiring, use a multi-meter to test
the vehicle’s electrical system for adequate power supply. First, check the
voltage at the battery with the ignition in the off position. The multi-meter
should read no less than 12 volts. Next, check voltage at the battery with
the engine running. The multi meter should show a reading between 12
and 14.4 volts. If your vehicle’s electrical system does not fall within these
parameters, consult an auto electrician before proceeding with the instal-
lation.
The Technophonic utilizes a very efficient digital Class D design. For most
installations 8 gauge power and ground primary wire is suitable. For runs
longer than 13 feet, use a thicker gauge wire.
Making Proper Speaker Connections
The Technophonic amplifier speaker out-
puts will accept 16 AWG - 14 AWG wire.
For best possible connections, strip 1/2
inch (12 mm) of insulation from the end
of each wire and twist the ends. Back
out the set screws 3/4 of the way out and
insert the wire firmly and complete-
ly, leaving no exposed wire. Use the
supplied hex wrench to tighten the set
screws until snug, do not over-tighten.
Ensure each positive and negative
wire is inserted into the correct + or
- terminals.
Bolt
Star Washer
Ground Wire
Ring Connector
Vehicle Chassis
Bare Metal
Grounding Example
NOTE: Remove any paint below the ring
connector for proper grounding.
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