Operation Manual, RA2400 & RA7300 Power Amplifiers
Page 14
Document # 9301H62800 Ver. 1.00
Using Wire to Speaker Terminals
Loosen the knobs of the RA2400/RA7300 speaker terminals far enough so that the pass through
hole inside the terminal is revealed. If using bare wire, pass the wire through the hole. Following
the proper connection instructions for your system with regard to which terminals are used, twist
the cap back to the terminal so that the connection is secured. The bare wire should make contact
with the terminal metal. Be careful not to over tighten or use tools as this may break the delicate
wire strands which will decrease your sound system’s performance.
Using Spade Lugs to Speaker Terminals
The RA2400/RA7300 speaker terminals will also accept 9mm spade lugs. When using spade lugs,
connect them to the speaker wire using the manufacturer’s instructions. To connect, loosen the
caps on the RA2400/RA7300/speaker terminals and place lugs between the slot of the plastic cap
and the back of the terminal. Be sure to observe proper polarity, using the appropriate speaker
hook-up icons for your system’s configuration. Using your fingers, tighten the cap to obtain
positive contact of the lug to the connector metal.
Using Banana Plugs to Speaker Terminals
When using banana plugs, connections may be made by simply inserting the jack affixed to your
speaker wire into the hole provided on the rear of the colored screw caps on the binding posts.
Before using banana type jacks make certain that the plastic screw caps are firmly tightened down
by turning them in a clockwise direction until they are snug against the chassis. This will ensure
that the maximum metal surface area of the plug is in contact with the metal of the jack. Be certain
to observe proper polarity.
Running Cable to the Speakers
Neatly run the cables to the speaker locations. Do not coil any excess cable, as this may become an
inductor that can create frequency response variations in your sound system.
Connect wires to the speakers, again being certain to observe proper polarity: Negative/black wire
to the negative speaker terminal and positive/red wire to the positive speaker terminal.
NOTE: While most speaker manufacturers adhere to an industry convention of using red terminals for
positive connections and black terminals for negative, some manufacturers may vary from this
configuration. To assure proper phase connections and optimal performance, consult the identification
plate on your speaker terminals or the speaker’s manual to verify polarity. If you do not know the
polarity of your speaker, consult the speaker’s manufacturer for further information.
