User manual RUSSOUND ALTX SC

[. . . ] You must use a minimum of a standard light switch plaster ring (p-ring) or a standard 20 cu. Suitable P-Rings and electrical boxes are available from your Russound dealer or a local electrical supply company. Using the PRing during new construction (some building codes require that wall devices be enclosed in electrical boxes. Check your local building code) is best because it gives you unobstructed access to the full depth of the wall. Jumper Settings On Circuit Boards 8X 4X X 1X-2X-8X 2X-4 1X X1 8X 4X X 1X-2X-8X 2X-4 1X 8X 4X X 1X-2X-8X 2X-4 1X X2 8X 4X X 1X-2X-8X 2X-4 1X 8X 4X X 1X-2X-8X 2X-4 1X X4 8X 4X X 1X-2X-8X 2X-4 1X 8X 4X X 1X-2X-8X 2X-4 1X X8 8X 4X X 1X-2X-8X 2X-4 1X TYPE OF SPEAKER WIRE For most applications, we recommend you use 16 or 18 gauge, stranded copper speaker wire for the ALTx sc speaker connections. [. . . ] An amplifier that is being driven beyond its potential will produce D/C voltage (clipping) which will not pass through a transformer, resulting in improper signal transfer and possible amplifier shutdown or damage. Adjust the volume of the speakers to the desired listening level using the ALTx sc. You can turn off the speakers in each room by turning the knob on the ALTx sc completely counter-clockwise. IMPORTANT: If you are unsure of any of the installation procedures, the products 3 should be installed by a professional custom installer. ULTRAMATCHTM VOLUME CONTROLS Russound UltraMatchTM volume controls eliminate the need for a speaker selector. By determining the drive capability of the amplifier with a few simple calculations, we 8X 4X 1X-2 2X-4X 1X X-8X Fig 1 8X 4X 1X-2 2X-4X 1X X-8X can determine the number of speakers the system can safely operate. DETERMINING THE PROPER JUMPER SETTING FOR IMPEDANCE MATCHING The jumper must be set in a position that correctly multiplies the impedance of the system to a level that is equal to or greater than the impedance of the amplifier. The jumper setting can be determined using the following simple steps 1. The amplifier's minimum impedance is usually found following Wattage and Frequency Response in the amplifier's specification page of the manual. It may also be listed on the back panel of the amplifier near the speaker terminals. Identify the correct impedance-matching chart according to the amplifier's minimum impedance. There are two impedance matching charts, one for 8 ohm amplifiers and one for 4 ohm amplifiers. Determine the impedance for each pair of speakers by referring to its manual. (rows on charts) Fig 2 Impedance Matching Charts For UltraMatchTM Impedance Matching For 4 Ohm Amplifiers 8 Ohm Pairs 0 1 2 3 4 5 6 7 8 0 1X 2X 4X 4X 8X 8X 8X 8X 1 1X 2X 4X 4X 8X 8X 8X 8X 2 1X 2X 4X 4X 8X 8X 8X 8X 3 2X 4X 4X 8X 8X 8X 8X 4 2X 4X 4X 8X 8X 8X 8X 5 4X 4X 8X 8X 8X 8X 6 4X 4X 8X 8X 8X 8X 7 4X 8X 8X 8X 8X 8 4X 8X 8X 8X 8X 9 8X 8X 8X 8X 10 8X 8X 8X 8X 11 8X 8X 8X 12 13 14 15 16 8X 8X 8X 8X 8X 8X 8X 8X 8X 4 Ohm Pairs Impedance Matching For 8 Ohm Amplifiers 8 Ohm Pairs 0 1 2 3 4 0 2X 4X 8X 8X Example: The table to the right shows an 8 ohm minimum impedance amplifier with 1 pair of 4 ohm speakers and 3 pair of 8 ohm speakers. Make sure that your amplifier has adequate wattage for the number of speakers. Watts per channel divided by the number of pairs should equal or exceed the individual speaker's minimum wattage requirements. You must use an UltraMatchTM volume control for each pair of speakers. Every jumper setting must be set on the same setting throughout the system. A minimum speaker load of 4 ohms can be connected to the output of each UltraMatchTM volume control. EZB CONNECTING BLOCKS The EZB-1 and EZB-2 connecting blocks are Russound accessories that simplify connections of multiple volume controls and speaker pairs. The EZB-1 is a neat, compact wiring device 5 4 Ohm Pairs 1 1X 4X 8X 8X 2345678 2X 4X 4X 8X 8X 8X 8X 4X 8X 8X 8X 8X 8X 8X 8X 8X capable of connecting four volume controls to an amplifier's outputs. Multiple EZB-2's can be used to expand the system to sixteen volume controls. [. . . ] To return items for repairs, the unit must be shipped to Russound at the owner's expense, along with a written explanation of the nature of the service required. The unit must be packed in a corrugated container with at least 3 inches of resilient material to protect the unit from damage in transit. Except to the extent prohibited by applicable law, no other warranties, whether expressed or implied, other than the express warranties stated herein, shall apply to units sold to the purchaser. Russound shall not be liable for any implied warranty of merchantability or fitness for a particular purpose to any person other than the original purchaser and user. [. . . ]