User's Manual
Speaker connections
If your speakers cannot be biwired, the normal configuration is to have one speaker connected per channel. The connection of more than one per channel will tend to degrade the speaker’s frequency response. For the best results use one speaker per channel.
If you want to connect more than one speaker per channel, there are two main ways: series or parallel.
SeriesFor example, if you want to series- connect two speakers to the front right channel of the amplifier:
•The positive output terminal of the front right channel connects to the positive input of the first speaker.
•The negative input of the first speaker connects to the positive input of the second speaker.
•The negative input of the second speaker connects to the negative output terminal of the front right channel.
•The total impedance of speakers in series is found by adding their imped- ances together. For example, two four ohm speakers in series is an eight ohm load.
•Series connections are easier on the amplifier than parallel connections as the total impedance is higher than driving a single speaker.
For example, if you want to parallel- connect two speakers to the front right channel of the amplifier:
•The positive output terminal of the front right channel connects to the positive input of the first speaker and to the positive of the second speaker.
•The negative output terminal of the front right channel connects to the negative input of the first speaker and to the negative of the second speaker.
•The total impedance of equal speakers in parallel is found by dividing the impedance of one speaker by the number of speakers. For example, two eight ohm speakers in parallel is a four ohm load (eight ohms divided by two), four eight ohm speakers in parallel is a two ohm load (eight ohms divided by four).
•Parallel connections are harder on the amplifier than series connections, as the total impedance is lower compared to driving a single speaker, and the amplifier must produce more current to drive them.
•You must make sure that the lower impedance does not cause the ampli- fier to overheat, shut down, blow the line fuse, or pop your circuit breaker. If this happens, you should reduce the number of speakers wired in parallel, or rewire them in series.
Amplifier | Amplifier |
Outputs | Outputs |
Series | Parallel |
| connection | connection |