User manual DLS AMPREFEN

[. . . ] OWNERS MANUAL CAR AUDIO AMPLIFIERS Reference 100A Reference 200A ly ugh oro tall s al th anu rt to in m this u sta ead re yo R o bef TE!NO DLS Svenska AB Box 13029 SE-402 51 Göteborg Sweden Phone +46 31 84 00 60 Fax +46 31 84 40 21 E-mail: info@dls. se www. dls. se TABLE OF CONTENTS Congratulations, you have just purchased the finest auto stereo amplifier that today´s technology can offer. DLS offers a series of high quality car audio products for real music lovers, and we are sure that you will enjoy a high class car sound for many years. NOTE, read the owners manual first! To maximize the performance of your system, we recommend that you thoroghly acquaint yourself with it´s capabilities and features. Please take your time to study this manual before starting the installation. [. . . ] The amplifiers sees a 4 ohm speaker as a 2 ohm load. 2. 5 BRIDGE MODE OPERATION Subwoofers are normally connected in mono bridge mode to the amplifier. This is done by connecting the speaker + to the amplifiers LEFT+ terminal, and the speaker - to the amplifiers RIGHT- terminal. 12 dB lowpass crossover: Consists of a coil in series and a bipolar capacitor connected in parallel with the driver. Coil Capacitor 62, 5 Hz 14 mH 450 µF 95 Hz 10 mH 300 µF 140 Hz 6, 3 mH 200 µF Valid for 4 ohm speakers only. This type is normally used for subwoofers. If you want to limit the lower frequency response, for example to a stereo system in multimode operation, a 6 dB slope crossover is perfect. Just connect a bipolar capacitor in series with the driver. 6 dB highpass filter: + 300 µF 200 µF 150 µF 2 266 Hz 400 Hz 533 Hz 4 133 Hz 200 Hz 266 Hz 8 67 Hz 100 Hz 133 Hz This table shows the crossover frequency of a 6 dB highpass filter at different impedances and frequencies. 2. 8 FINAL SYSTEM SETUP Before connecting the amplifier to the battey, recheck all connections. When you connect the main fuse you will see a little spark, this is normal. But if the fuse blows at this moment, something is wrong. Turn on your head unit, the amplifier starts and the red LED is lit. Increase the volume and make sure all speaker works. Readjust levels and crossover settings if necessary. The level settings might need to be readjusted after 25 - 30 hours of use. 2. 9 PROTECTION CIRCUITS The amplifiers have an internal high current protection circuit shutting down the amplifier if the current draw is too high. The protection circuits will reset by turning the head unit off and on again. There are two 25 Amp fuses on the front. Disconnect the main fuse before replacing any of these. Always replace with the same type and value. The amplifiers also have a thermal protection that turns off the amplifier at 95 C. It will resume operation after cooling down. If necessary install an external cooling fan. -5- 87654321 87654321 87654321 Capacitor 300 µF 200 µF 150 µF 87654321 87654321 87654321 87654321 87654321 87654321 87654321 INTERNAL FILTERS, FAULT FINDING GUIDE 3. INTERNAL FILTERS 3. 1 Reference 100A Reference 100A has an internal variable lowpass filter that can be switched in/out. [. . . ] If the head unit has only one pre out a Y-cable must be used. For power cable, speaker cable and fuse size selection we refer to section 2. 2 - 2. 4 POWER INPUT GND RMT BATT FUSE 25 A x 2 PROTECT POWER 25 To remote on head unit Battery 12 volt Fuse 40 A Button in Button out HP-filter LP-filter LP-filter LEVEL 70 90 IN 2, 5V HP-filter LP-filter LP-filter LEVEL 70 90 IN 2, 5V 15 200 50 200 OUT 5, 5V 0, 3V 15 200 50 200 OUT 5, 5V 0, 3V SPEAKERS +LEFT- +RIGHT- HP-filter LP-filter LP-filter IN 70 90 LEVEL SIGNAL INPUT SPEAKERS LEFT RIGHT +LEFT- +RIGHT2, 5V 5, 5V 0, 3V HP-filter LP-filter LP-filter IN 70 90 LEVEL SIGNAL INPUT LEFT RIGHT 2, 5V 5, 5V 0, 3V 15 200 50 200 15 200 50 200 + BRIDGE - OUT + BRIDGE - OUT Front + - + Pre out rear 25 Pre out front FM1 Subwoofer 4 ohm 101, 9 Rear + - + You can connect one or two systems in stereo to the speaker terminals. These are connected in parallel. - 11 - CONNECTION OF Reference 200A 6. 3 Connection of a front and rear stereo system and a subwoofer connected in multimode. You can use all DLS coaxial, 2-way or 3-way speaker systems in this example. If the head unit has only one pre out a Y-cable must be used. [. . . ]