User manual DLS AMPD1000E

[. . . ] Slowly increase the volume until you can hear the music comfortly and clearly, without any distortion. Sudden sound shocks are dangerous. The following noises can be dangerous with constant exposure: 90 dB Subway, motorcycle, lawn mover 4 hours max 100 dB Chain saw 2 hours max 120 dB Rock band live concert 30 minutes max 140 dB Gunshot blast, jet plane 0 minutes -1- GENERAL, POWER CABLING 1. This amplifier is a high quality product and is a result of many years of experience of building high quality sound products for vehicles. We recommend you to carefully read this manual before you start to install. [. . . ] Lay the power cables and signal cables separated on each side of the car. Any extra cable must be laid in zig-zag style and definitely not coiled. REMOTE WIRE Some signal cables include a thin wire for remote amplifier start. Connect between the head units remote cable (often the same cable that´s used for automatic power antennas) and the REM-terminal on the amplifier. If you want to start more than one amplifier using the remote output, the current load might be too high for som head units. High currents may damage the head unit, check in the manual for the head unit. Sometimes you must add a relay to the remote circuit that takes care of the higher current. If you are uncertain of how to connect the relay, ask your local DLS dealer for advice. PROTECT YOUR CABLES! To prevent the cable insulation from beeing damaged over sharp metal edges we recommend the use of cable protection tubes or similar. A damaged cable insulation could cause serious damage to the amplifier not covered by any guarantee. SPEAKER POLARITY CHECK. All speakers in a car audio system should be connected in phase (the same polarity). Out of phase speakers will cause a lack of bass, and a poor stereo soundstage. Checking polarity: Hold the - connection of the speaker wire to the terminal of a 1, 5 Volt flashlight battery. Tap the + wire on to the + terminal of the battery, and observe the movement of the cone. The cone should move outwards when the wire touches the battery, and inwards when the battery is removed. If it is the other way around, the speaker has been connected backwards and it must be removed and connected correctly. If your system also has a subwoofer connected through a passive 6 or 12 dB crossover, try to connect this with various polarity and judge what sounds best. The phase shift in passive crossovers sometimes makes it necessary to change polarity. + Battery 1, 5 Volt + - NOTE!Tweeters can not be tested this way, double check the connections instead. 2. 4 SPEAKER CONNECTION There are double speaker connections internally connected to each other. The reason for having double connections is for making it easier to connect more than one speaker. The gold plated terminals will directly recieve speaker cables up to 6 mm 2 (9AWG). Always use high quality speaker cables such as DLS SC 2x2, 5 or SC 2x4. Connect the speaker + (marked with + or a red dot) to the amplifier + terminal, and the speaker - to the amplifier -. When fitting the cables to the terminals, remove only 10 mm of the insulation. [. . . ] Use a 4 mm hexagon key for the power terminals. -5- CONNECTION DIAGRAM D 1000 7. Connection diagram D 1000 This amplifier is constructed for use as a subwoofer amplifier. It is possible to connect speakers in many various ways as long as the impedance load is not lower than 1 ohm. The speaker terminals on the amplifier are internally connected in parallel. D 1000 can be connected in some of these ways: Subwoofers with single 4 ohm voice coil: 1. [. . . ]