4.Servicing: Do not attempt to service the Principal Grand subwoofer beyond that described in the operating instructions. All other services should be referred to qualified service personnel.
5.Indoor use: Principal Grand is designed for indoor use only in a dry, domestic environment and for use within a temperature range of 10° – 40°C (50°
– 105°F).
6.Objects and liquid damage: Do not let objects or liquids fall into the Principal Grand. Do not place a container with liquid on top of this product.
7.Water and moisture: Do not operate the Principal Grand near water, for example near a
8.Wall or ceiling mounting: Principal Grand is neither suitable for mounting into the wall nor for mounting on the ceiling. If you choose a position on the wall or on a shelf, it will be necessary that the subwoofer be properly secured into position. Otherwise the subwoofer could fall due to the exceptional vibrations that can cause the unit to move or “walk.”
9.Ventilation: Be sure to position the subwoofer so that its location or position does not interfere with its proper ventilation. The rear of the Principal Grand contains a metal panel that acts as a heat sink for the amplifier. It is particularly important that this area be clear to allow for proper air flow.
