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).
| Black Wire | Red Wire |
| From | |
|
| |
|
| Amplifier |
From Amplifier | Terminal Cover Plate | |
Black Wire |
|
|
Red Wire 
Rear of Speaker
Speaker Terminal | Direct 8 ohm Connection |
| (Bypassing the Transformer) |
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
| Red Wire , | |
Red Wire , | From Amplifier | |
To Second Speaker | ||
From Amplifier | ||
From Amplifier | ||
Black Wire . | ||
To Second Speaker | ||
| ||
| Black Wire . |
One Speaker | Two Speakers |
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.
SF 228T Speaker System • Installation | 8 |