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SF228TSpeakerSystem•Installation 8
Direct 8 Ohm Connection to an Amplifier
1. An amplifer 8 ohm speaker output can be directly connected to the speaker terminal of
the SF 228T, (see the diagram below).
From Amplifier
Red Wire
Black Wire
Rear of Speaker
Speaker Terminal
Direct 8 ohm Connection
(Bypassing the Transformer)
From
Amplifier
Red Wire
Black Wire
Terminal Cover Plate
Figure 10. Direct Amplifier Connection to Speaker
2. Route the wires from the amplifier speaker output to the speaker using the same
procedure for routing speaker wire (and conduit if applicable) through the terminal
cover plate, see “Installing the Speakers” on page 3.
3. Strip 3/16 inch (5 mm) from the ends of the two speaker wire leads coming from the
amplifier. Keep the wire strands together by twisting them (do not tin the wires).
4. Secure the wires to the input terminals of the speaker, observing the correct polarity.
Connect the red positive (+) wires to the + speaker terminal and the black negative (–)
wires to the – speaker terminal.
Red Wire ,
Black Wire .
From Amplifier
One Speaker
From Amplifier
To Second Speaker
From Amplifier
To Second Speaker
Two Speakers
Red Wire ,
Black Wire .
Figure 11. Speaker Terminal Wiring
5. Replace the terminal cover plate and tighten the two cover plate screws that were
loosened in step 3 of “Installing the Speakers” on page 3.
6. Test the system by powering on the amplifier and listening for the correct response from
the speakers. Disconnect the power from the amplifier.
7. Proceed to “Completing the Installation” on page 8.