Radio Shack 32-2055 - Manual (Page 14)

14
Connecting Your Amplifier
Determining Total Speaker Impedance
Before you connect speakers to the amplifier, you must determine the total
speaker impedance. To determine total speaker impedance, you must first
decide if you are going to connect the speakers in series, parallel, or a series/
parallel combination.
If you are connecting more than two speakers in series only or parallel only, be
sure the total impedance does not exceed the amplifier’s maximum impedance
(16 ohms) or fall below the minimum impedance (4 ohms). You can achieve a
proper total impedance by combining series and parallel connections.
Note: A total speaker impedance higher than 16 ohms or lower than
4 ohms can damage your amplifier or speakers. When determining the
total speaker impedance, first determine whether you are connecting
the speakers in series, parallel, or a series/parallel combination.
Preparing the Speaker Wires
Use the shortest length of wire possible to connect the speakers. After placing
the speakers, use this table to determine the wire length and choose the
appropriate gauge.
Wire Length Wire Gauge
7.6 m
(25 ft) or less
18 gauge
Over 7.6 m
(25 ft)
16 gauge
To prepare the speaker wire, remove about ½ inch (12.5 mm) of insulation from
the end you are connecting to the amplifier. Twist the exposed wire to secure all
of the wire strands.