Instruction/ maintenance manual of the product A1 DLS
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How to install and operate the DLS UL TIMA TE 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. Y our DLS amplifier must be installed correctly in order to work well.
Installation Before you begin to install Before you begin you need to read the manual, to have some tools, cables and other material available. There is one such list of material on the following page. Amplifier location Important Allow air circulation around the amplifier .
T ools and material needed T ools: Flat and Phillips screwdrivers Wire cutter Wire stripper Electric drill with drills .
Connect the fuse holder as close to the vehicle battery + as possible, using A WG 5 = 16 mm 2 or heavier cable (see table on page 2). Use ring crimp terminal cable to connect to battery +. Apply silicon grease to the fuse to prevent corrosion. Connect the battery cable to the +12 V olt terminal on the amplifier .
Low level input Use a pair of shielded stereo audio cables with RCA type jack. Most trunk-mount amplifiers need a 20 feet RCA cable ( appr 5 – 6 meters). Most under the seat installations require 12 feet ( 2 – 3 meters) RCA cables. A void placing the RCA cable close to spea- ker cables, power cables and remote control cable.
Low level input Use a pair of shielded stereo audio cables with RCA type jack. Most trunk-mount amplifiers need a 20 feet RCA cable ( appr 5 – 6 meters). Most under the seat installations require 12 feet ( 2 – 3 meters) RCA cables. A void placing the RCA cable close to spea- ker cables, power cables and remote control cable.
Crossovers / filters (general) DLS A-series amplifiers include highpass filter ( HP ) and lowpass filters ( LP ). The HP-filters can be used in one of two ways. Either as a subsonic filter together with a subwoofer to remove the lowest frequencies which often causes a rumbling bass reproduction.
The LP-filter on the rear channels is used when you run a 2-way or 3-way speaker system with active crossover . It will allow low frequencies only and blocks higher frequencies. The filter can be switched in and out. The normal frequency range is from 0,3 to 4 kHz.
NOISE PROBLEMS WHINING NOISE V AR YING WITH ENGINE REVOLUTIONS: Do this: 1. Rewire the power supply (12 V) to source unit direct from battery . 2. Rewire ground wire from source unit to clean position on chassis. 3. Check all power connections to ensure that they are clean and tight.
On the following pages you find some examples of how to connect the amplifier for different use. The drawings show normal level and filter settings. The main dif ference 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.
11 UL TIMA TE A1-A2 Remote Pre out 2. T wo stereo speaker pairs connected in parallel 3. Connection in mono with one subwoofer in bridge mode. Remote Pre out Subwoofer 4 ohm Y ou can use all DLS 4 ohm subwoofers in this example. For power cable, speaker cable and fuse size selection we refer to page 4.
WIRING EXAMPLES DLS A3 On the following pages you find some examples of how to connect the amplifier for different use. The drawings show normal level and filter settings. The two channels are divided into two separate mono amplifiers. There are separate DC inputs for each channel but they are internally connected with each other .
2. One or more subwoofers in mono bridge mode Y ou can use all DLS subwoofers in this example. Speaker impedance must be 4 ohm. For power cable, speaker cable and fuse size selection see page 4.
FM 1 107,3 + + - - Subwoofer 4 ohm Pre out front Pre out rear Fuse 150 A Power capacitor Fan 12 V RIGHT FUSES 25 A x 2 25 25 25 25 LEFT FUSES 25 A x 2 + Battery 12 volt T o remote on stereo / CD POWER.
2. A front system connected in stereo bridge mode on all four channels. Y ou can use all DLS coaxial, 2-way or 3-way speaker systems in this example. Speaker impedance must be 4 ohm. If the head unit has only one pre out a Y -cable must be used. For power cable, speaker cable and fuse size selection see page 4.
3. Connecting a 3-way system using active crossover between woofer and midrange. Y ou can use all 3-way speaker systems in this example. Y ou can also use any 2-way system in combination with a separate mid bass speaker . Speaker impedance must be 4 ohm.
Y ou can use all DLS coaxial, 2-way , 3-way systems and subwoofers in this example. All speakers must be 2-4 ohm. If the head unit has only one pre out, a Y -cable must be used.
DLS A6 is 1 ohm stable. This means that you can connect four 4 ohm subwoofers in parallel without damaging the amplifier . If you have a 4 ohm sub with dual voice coils you can connect the coils in parallel, one coil to each amplifier output. NOTE! The speaker output terminals are internally connected in parallel.
19 Filter settings: Front: HP-filter 80 Hz or fullrange Rear: HP-filter 80 Hz or fullrange LP-filter OUT Sub: LP-filter 70-80 Hz Use one, two or three RCA-cables for signal from head unit to amplifier .
20 Example 2: Speaker wiring with active crossover to a front speaker system and one or more subwoofers Filter settings: Front: HP-filter 4 kHz with x20- switch in x20 position Rear: HP-filter 80 Hz o.
Example 3: System with front speaker system, rear fill speakers and one or more subwoofers 21 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 Use one, two or three RCA-cables for signal from head unit to amplifier .
22 Example 4: Speaker wiring with acive/passive crossover to a 3-way front speaker system and one or more subwoofers Filter settings: Front: HP-filter 400 Hz with x20- switch in x1 position Rear: HP-f.
23 Example 1: Speaker wiring with front and rear speakers + + - - + + - - FM 1 107,3 Pre out front Pre out rear UL TIMA TE A8 REAR SPEAKERS +LEFT- +RIGHT- FRONT INPUTS REAR LEFT RIGHT LEFT RIGHT HP-fi.
24 Example 2: Speaker wiring with subwoofers in bridge mode to both front and rear channels UL TIMA TE A8 Button in Filter settings: Front: HP-filter OFF LP-filter IN Setting 70-80 Hz Rear: HP-filter .
25 T esting Before you finish the installation, you should do the following tests to make sure the wiring is correct and everything is operating properly . Reconnect Battery When wiring is complete, reconnect the battery negative terminal. If problems occour during the installation, or later , this guide might help you to find out whats´s wrong.
Model A 1 A2 A 3 A 4 Number of channels 2 2 2 4 Working mode AB AB AB AB Power output at 13,8 V olt, 20 Hz - 20 kHz, THD max 0,1%: RMS power output in 4 ohm 2 x 45 W 2 x 85 W 2 x 150 W 4 x 85 W RMS po.
We follow a policy of continuous advancement in development. For this reason all or part of specifications & designs may be changed without prior notice. 27 UL TIMA TE A7 Model A 7 RMS output per channel at 13,8 volts, 20 Hz - 20 kHz , < 0,1% distortion.
DLS Svenska AB P .O. Box 13029 S-40251 Göteborg, Sweden T el: +46 31 840060 Fax: +46 31 844021 E-mail: info@dls.se www .dls.se.
An important point after buying a device DLS A1 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought DLS A1 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data DLS A1 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, DLS A1 you will learn all the available features of the product, as well as information on its operation. The information that you get DLS A1 will certainly help you make a decision on the purchase.
If you already are a holder of DLS A1, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime DLS A1.
However, one of the most important roles played by the user manual is to help in solving problems with DLS A1. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device DLS A1 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
