8
Parallel Connection Series Connection
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Impedance is a measure of the load your speaker system places on your
amplifier. Too great a load (indicated by a lower impedance figure) can
damage your amplifier. Too small a load (indicated by a higher impedance
figure) can fail to draw adequate power from your amplifier. Please consult
your amplifier manufacturer’s literature for impedance recommendations.
We hope this means you’ll be consulting another one of our manuals, by the
way. If this is not the case, may we humbly suggest you trade up to a better
amplifier?
When you connect speakers in parallel, the load increases as shown below:
Parallel speaker configurations Total system impedance
Two 8 ohm cabinets
4 ohms
One 8 ohm cabinet and one 4 ohm cabinet
2.6 ohms
Two 4 ohm cabinets
2 ohms
Three 8 ohm cabinets
2.6 ohms
Two 8 ohm cabinets and one 4 ohm cabinet 2 ohms
One 8 ohm cabinet and two 4 ohm cabinets
1.6 ohms
When you connect speakers in series, the load decreases as shown below:
Series speaker configurations Total system impedance
Two 8 ohm cabinets
16 ohms
One 8 ohm cabinet and one 4 ohm cabinet
12 ohms
Two 4 ohm cabinets
8 ohms
Three 8 ohm cabinets
24 ohms
Two 8 ohm cabinets and one 4 ohm cabinet 20 ohms
One 8 ohm cabinet and two 4 ohm cabinets
16 ohms
Amp + -
Amp + -
Spkr. 1
+ -
Spkr. 1
+ -
Spkr.
2--
+ -
Spkr. 2
+ -
