Connections, Maintenance and Service

CONNECTIONS

After placing the speakers, you are ready to connect your system. First, turn off all audio-system power. Use high-quality speaker wire to make your connections; #18-gauge speaker wire with polarity cod- ing is recommended. For longer distances, #16-gauge or heavier wire is recommended. The side of the wire with a ridge or other coding is usually considered positive polarity (i.e., +). Also, consult the owner’s manuals that were included with your amplifier or receiver to confirm connection procedures. Observe polarities when making speaker connections, as shown in Figure 4. Connect each + terminal on the back of the amplifier or receiver to the respective + (red) terminal on each speaker. Connect the – (black) terminals in the same way.

Important!

Do not reverse polarities (i.e., + to –, or – to +) when making connections. Doing so will cause poor imaging and diminished bass response. Be certain that positive and negative wire strands are completely isolated to avoid short circuits that may damage your equipment.

NOTE: On certain models using hexagonal terminal nuts, a small socket wrench is provided to help in properly tightening the terminals. Hand-tighten only and do not overtighten.

Red = +

Black = –

		Loosen
		Terminal
	No Stripe= –	Insert Bare
	No Stripe= –	End; Tighten
		End; Tighten
		Stripe=+ Terminal
	Speaker Wire

	Receiver or Amplifier	Black = –
	(rear view)
		Red = +
	Output

Figure 4. WiringOnediagramChannelShown shows polarity connections for one channel of home theater system.

MAINTENANCE AND SERVICE

The enclosure may be cleaned using a soft cloth to remove finger- prints or to wipe off dust.

All wiring connections should be inspected and cleaned or remade periodically. The frequency of maintenance depends on the metals involved in the connections, atmospheric conditions and other factors, but once per year is the minimum.

If a problem occurs, make sure that all connections are properly made and clean. If a problem exists in one loudspeaker, reverse the connection wires to the left and right system. If the problem remains in the same speaker, then the fault is with the loudspeaker. If the problem appears in the opposite speaker, the cause is in another component or cable. In the event that your speaker ever needs service, contact your local JBL dealer or distributor, or visit www.jbl.com for a service center near you.