Power Dynamics PDW8 Manual De Instrucciones página 3

CONNECTION
This range of speakers features 2-p loudspeaker connectors. These connectors are hooked in a parallel "loop-
through" configuration for connection to additional speakers. For optimum performance it's important to use cables
specifically designed for speaker use. Do not use shielded "guitar" signal cables for connection to these speakers.
Selection of the appropriate wire gauge is important for system operation. A cable that is too light will result in
amplifier power being wasted due to the series resistance of the cable. In addition, loss of low-frequency
performance may be experienced due to a degraded damping factor. The chart below illustrates the appropriate
minimum wire gauge for various cable lengths and speaker impedance combinations.
When using this chart, keep in mind that two 8 Ohm parallel linked speakers will equal a 4 Ohm load.
Looping speakers
Running too many speakers from a single amplifier channel may result in damage to the amplifier and/or in
degraded audio performance. To calculate the combined impedance of multiple identical speakers in parallel,
please use the formula below:
Impedance of a single speaker
--------------------------------------------------------- = Amplifier load
Number of speakers connected in parallel
Refer to your power amplifiers owner's manual, for information on minimum recommended load impedance.
INPUT PANEL
The two speaker plug inputs on the rear panel of these series speakers are wired in parallel. This means that
anything you plug into one of the two plug inputs is available to be "looped" through the other speaker plug to
another speaker.
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