Installation Considerations
HDL-6 Power Handling
The HDL-6 is designed for use with a receiver or amplifier having a maximum power output of 250 watts per channel at 8 ohms. Damage caused by the use of a higher-power receiv- er or amplifier will void the warranty. Consult your Niles deal- er, or receiver/amplifier manufacturer, if you are uncertain about the power rating of your receiver or amplifier.
Amplifier Impedance Load
As more pairs of speakers are parallel connected to a receiver or amplifier, the overall system impedance becomes lower. For example, if two pairs of 8-ohm speakers are connected in parallel, the impedance will be 4 ohms; two pairs of 4-ohm speakers in parallel become 2 ohms, and so on.
Most receivers or amplifiers are not rated for use below a 4 ohm load. Most manufacturers do not recommend connect- ing more than two pairs of speakers without using some form of impedance correction.
The HDL-6 includes impedance correction circuitry which protects your receiver or amplifier from low impedance loads. The circuitry assures that your receiver or amplifier will see a safe operating load, even when all six speaker pairs are playing at the same time.
