User manual DLS ULTIMATE A3

[. . . ] Contents How to install and operate the DLS ULTIMATE A-series amplifiers A1, A2, A3, A4, A5, A6, A7 & A8 Welcome! This owners manual is written in easy english and uses a lot of drawings to simply the installation and use of the above amplifiers. Install the amplifier yourself if you feel confident with our instructions and if you have the proper tools. However if you feel unsure, turn over the installation job to someone better suited to it. Caution. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 2 3 3 3 4 5 5 5 5 5 5 6 7 8 9 10-11 12-13 14-16 17 18 19-22 23-24 25 25 26-27 Warranty Service This amplifier is covered by warranty, depending on the conditions in the country where it is sold. [. . . ] The filter can be switched off if you want to run the amplifier in full range mode. Filters on sub channel Lowpass 90 HP-filter IN 240 50 125 Hz The sub channel is made only for subwoofer use and has a variable LP-filter that can be switched onoff. A normal setting for the LP-filter is 60-80 Hz. 80 400 Hz OUT 8 ULTIMATE A-series Professional Tip: Professional Tip: 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. NOISE PROBLEMS WHINING NOISE VARYING WITH ENGINE REVOLUTIONS: Do this: 1. Check quality of earth strap connection from battery negative terminal to chassis. Test this by laying a new cable over the seats and reconnecting to the amplifier. If the noise does not return, reroute original cable away from source of interference. If noise remains regardless of cable position, try to use so called Quasi-balanced signal cables. DLS PRO and Ultimate-cables are Quasi-balanced. + Battery 1, 5 Volt + - NOTE!Tweeters can not be tested this way, double check the connections instead. Professional Tip: Installing in trunk When installing the amplifier in the trunk, run the power wires along the same path as the other vehicle wiring. you will have to remove the door sill trim and the carpet. Professional Tip: Securing wires Use wire ties to bundle together when possible. (But never bundle speaker wires or signal cables together with power wires). Professional Tip: Crimp connections Purchase crimp connectors and crimping tool. Crimp tightly Professional Tip: Speaker and power wires Do not run speaker and power wires next to each other. 9 ULTIMATE A1-A2 Wiring examples DLS A1 & A2 On the following pages you find some examples of how to connect the amplifier for different use. The main difference between DLS A1 and A2 is the lowpass filter and the power output. A1 has a 3-way filter selector under the bottom plate and A2 has a continously variable filter on the front. DLS A1 and A2 can be connected in different ways: 1. As a stereo amplifier connected with a speaker system of coaxial, 2-way or 3-way type. [. . . ] Make your own tests. SIGNAL INPUT LEFT SUB RIGHT Remote Bass Level IN FILTER PHASE 90 Low-pass 90 LEVEL 3, 5V 7, 0V 0, 2V SUB-WOOFER + SPEAKERS - O 180 Degree 50 125 OUT FM1 107, 3 Phase Level Remote Bass Level & Phase control Subwoofer 2 - 4 ohm Filter settings: Front: HP-filter 4 kHz with x20switch in x20 position Rear: HP-filter 80 Hz or fullrange LP-filter IN, setting 4 kHz with x10 switch in position x1 Sub: LP-filter 70-80 Hz Switch settings in this example HP: x20 LP: x1 Input Front Rear x1 HP Input to front, rear & sub Amplifier front Input to rear & sub Input Sub Sub input separate LP x1 x 10 Use one, two or three RCA-cables for signal from head unit to amplifier. See page 6 for detailed instructions 20 x 20 Sub input common ULTIMATE A7 WIRING EXAMPLES A7 Example 3: System with front speaker system, rear fill speakers and one or more subwoofers Highpass filter 80 Hz Button in Highpass filter 125 Hz Lowpass filter setting 6 kHz Button in Button in FRONT SPEAKERS +LEFT- +RIGHT- HP-filter LEVEL 3, 5V 80 400 7V 0, 2V Hz 240 IN SIGNAL INPUTS FRONT REAR LEFT RIGHT LEFT RIGHT HP-filter 240 80 400 Hz IN LP-filter 2 IN LEVEL 3, 5V 7V 0, 2V REAR SPEAKERS +LEFT- +RIGHT- OUT x20 change by bottom switch OUT 0, 3 4 kHz OUT x10 change by bottom switch Filter box Filter box Pre out front + - Pre out rear + - + + + - FM1 107, 3 Rear fill speakers 125 Hz to 6 kHz + Lowpass filter 70- 80 Hz Two-way front system DC - FEED DLS A7 For DC-feed, see page 4 SIGNAL INPUT Remote Bass Level IN FILTER PHASE 90 If you have problems with the mid bass driver "reaching the bottom" (the voice coil touches the bottom pole plate) at high volumes, use the HP-filter to avoid this with a setting at 50 - 80 Hz or higher. Make your own tests. LEFT SUB RIGHT Low-pass 90 LEVEL 3, 5V 7, 0V 0, 2V SUB-WOOFER + SPEAKERS - O 180 Degree 50 125 OUT FM1 107, 3 Phase Level Remote Bass Level & Phase control Switch settings in this example HP: x1 LP: x10 Input Front Rear x1 HP x 20 x1 Input to front, rear & sub Subwoofer 2 - 4 ohm Filter settings: Front: HP-filter 80 Hz or fullrange Rear: HP-filter 125 Hz LP-filter IN. Setting 6 kHz with x10 switch in position x10 Sub: LP-filter 70-80 Hz Amplifier front Input to rear & sub Input Sub Sub input separate Use one, two or three RCA-cables for signal from head unit to amplifier. [. . . ]