two dual-voice coil 4-Ohm woofers are connected in parallel and then wired to each other in parallel, a 1-Ohm monaural output would result (See Fig. 2). On the other hand, if your amplifier is rated for 4-Ohm operation in bridged or one-channel operation, series-connect the woofer voice coils (See Fig. 3). If the amplifier is rated for 8 Ohms, interconnect the voice coils of the woofer in series as shown to obtain 8-Ohm monaural output (See Fig. 4).

PARALLEL

2 Ω + -

2 Ω MONO

- +

Fig. 1

2 Ω +

-

+

- 2 Ω

 

2

 

1 Ω

 

 

MONO

-

 

-

+

+

Fig. 2

SERIES

8 Ω +

 

-

 

 

 

 

- 8 Ω

 

 

+

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4 Ω

-

 

 

 

 

 

 

 

MONO

 

 

+

-

 

 

 

+

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Fig. 3

8 Ω + -

8 Ω MONO

- +

Fig. 4

SERIES/PARALLEL STEREO CONNECTION

Series wiring of each of two, dual voice-coil 4-Ohm woofers will result in a total impedance load of 8 Ohms at each channel of the amplifier (See Fig. 5). Otherwise, connect one woofer to each channel for 4-Ohm stereo operation (See Fig. 6), or two parallel-wired woofers (one-per-channel) for 2-Ohm stereo operation (See Fig.7).

+

-

 

 

+

-

8 Ω

 

L

 

 

 

 

 

4 Ω

-

+

8 Ω

 

 

STEREO

 

4 Ω-

+

+

-

STEREO

 

8 Ω

 

 

 

 

Fig. 6

 

 

R

-2 Ω

 

-

+

+

 

 

 

 

L

 

 

Fig. 5

 

 

 

 

-

 

 

 

 

 

+

2 Ω

 

 

 

+

- 2 Ω

STEREO

R

- +

Fig. 7

3

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Image 3
Audiovox PSW-12DC, PSW-10DC manual SERIES/PARALLEL Stereo Connection