DLS Svenska AB A8 Series, A2, A1 Ultimate A-series Phase control on A5, A6 and A7, Input Wiring

Page 5

ULTIMATE A-series

Phase control on A5, A6 and A7

Input and controls

Input Wiring

Inputs are low level from the RCA output of the head unit.

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. Avoid placing the RCA cable close to spea- ker cables, power cables and remote control cable.

DLS A1, A2 and A3 uses a single pair of RCA inputs while three and four channels amplifiers like A4, A5 and A8 uses dual pairs of RCA inputs A7 is a multi channel amplifier with three separate

The phase control on can be set continuously from 0 - 180 degrees. This is very useful when you want to adjust the bass sound for best front stage image. Start

at 0 and turn the control slowly

PHASE

 

 

 

clockwise until you experience

 

 

 

 

 

 

 

 

 

that the bass sound is coming

0 180

from the front. If you dont get the

DEGREE

result you want, also try to phase

 

 

 

reverse

the

subwoofer

 

 

 

connections and make a new adjustment. On A5 you find this control on the amplifiers left side.

Remote bass level and phase shift control on A5, A6 and A7

inputs. On next page you can

A remote level and phase

Remote Bass Level

see how to connect the RCA inputs of A7.

Use high quality interconnects like the DLS SL5 PRO or SL5 Ultimate that has an effective shielding.

When you run the signal cables remember to keep them well spaced from the wiring loom and the power feed to the amplifier to avoid picking up interference. 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.

Input Level control

shift control is included with A5, A6 and A7 amplifiers. You can adjust the bass level and phase from the front seat of your vehicle.

Connect it to the socket marked Remote Bass Level. When using a remote level control you must activate it by pushing the switch bes- ides the socket, to IN-posi- tion.

IN

OUT

Phase

Level

LEVEL

7V 0,5V

The input level control, 7V – 0,2 V, (5V - 0,2 V on A8) matches the output of your head unit to the input of the amplifier. After installation is complete, make sure the input of the amplifier is turned down all the way ( counter-clockwise at 7V ). Play a tape or CD, make sure all bass or treble settings or equalizer are flat, and turn the volume of the radio up until you just start to hear distortion. Turn the volume control down just a bit. On the amplifier increase the input level control ( clockwise or to the right ) until you just start to hear distortion, then back the level control just a bit. Now your radio and amplifier levels are matched.

On three/ four channel amplifiers like the A4, A5 and A8 it´s necessary to adjust the levels indiviually to achieve a good sound balance between the diffe- rent speakers, different speakers have different sensitivity. When using two of the channels for subwoofer operation, start the level adjustment on these channels. After having adjusted the bass level for good performance, adjust the level to the front system for a good sound balance.

Remote Bass Level & phase shift control

Power / Protect light

The power light (blue) is turned on when Power the amplifier is turned on.

(Blue)

 

The protect light ( red ) is turned on

 

when the amplifier shuts down from

Protect

overheating, or a short circuit (speaker

(Red)

failure)

 

The amplifiers have an internal high current protection circuit shutting down the amplifier if the current draw is too high. It is indicated with a LED marked ”PROTECT”. The protection circuits will reset by turning the head unit off and on again.

The amplifiers also have a thermal protection that turns off the amplifier if getting to hot. It will resume operation after cooling down. If necessary install an external cooling fan.

There are one or two fuses on the front. Disconnect the main fuse before replacing any of these. Always replace with the same type and value.

5

Page 4 Page 6
Image 5
Page 4 Page 6
Contents Welcome ContentsAmplifier location Before you begin to install Disconnect BatteryUltimate A-series Amplifier installation kit Ultimate A-series Tools and material needed Routing wiresConversion Gauge mm2 ToolsUltimate A-series Remote terminal REM For RCA cable signal inputGround Terminal GND Fan terminalInput Wiring Ultimate A-series Phase control on A5, A6 and A7Remote bass level and phase shift control on A5, A6 and A7 Power / Protect lightAmplifier front Ultimate A7DLS A4 DLS A1DLS A5 DLS A6Highpass filter on front channels Crossovers / filters on A7Highpass filter on rear channels Filters on sub ChannelSpeaker Polarity Check Noise ProblemsWhining Noise Varying with Engine Revolutions Constant Whining NoiseUltimate A1-A2 Button out Fuse Pre out 60 a FM1 107,3 Battery Volt RemoteDLS A1 and A2 can be connected in different ways One speaker pair connected in stereoTwo stereo speaker pairs Connected in parallel Connection in mono with one subwoofer in bridge modeDLS A1 Button outUltimate A3 Wiring Examples DLS A3DLS A3 can be connected in different ways Stereo with one front and one rear speaker systemHP-filter setting 30 Hz LP-filter setting 60-80 Hz Button Mono bridge modeOne or more subwoofers DC Feed DLS A3HP-filter setting 80-100 Hz Wiring Examples A4HP-filter setting 30 Hz LP-filter setting 70-80 Hz Button DC Feed DLS A4HP-filter not in use LP-filter not in use Ultimate A4 DC-FEED DLS A4FM1 107,3 HP-filter not in use LP-filter not in use Button out Pre out RearButton Own tests HP-filter setting 400 HzUltimate A5 Wiring Examples A5Connection of a front system Stereo and a subwoofer in monoUltimate A6 DC Feed DLS A6 Wiring Examples A6Connection of two 4 ohm subwoofers DC Feed DLS A7 Wiring Examples A7A7 in Bridge Mode Front Rear Tweeters with active high-pass x-over setting at 4 kHzSwitch settings in this example Filter settings Filter settings Switch settings in this example HP-filter settingButton HP-filter setting 80 Hz LP-filter setting 400 Hz Example 1 Speaker wiring with front and rear speakers Wiring Examples A8Ultimate A8 Button Out Button outFilter settings Front HP-filter OFF LP-filter settingLP-filter Setting 70-80 Hz Rear HP-filter OFF Subwoofer 2 4 ohmTest speaker connections Reconnect BatteryTest power wiring Specifications A1 to A6 Channel 1&2 Specifications A7 & A8Channel 3&4 Subchannel

A3, A4, A7, A6, A1 specifications

DLS Svenska AB is renowned for its innovative audio solutions, and its A-series speakers, specifically models A1, A5, A6, A7, and A8, underscore this commitment to superior sound quality and cutting-edge technology.

The A1 is the entry-level model, yet it showcases impressive features that set it apart. With a compact design, it is ideal for smaller spaces while still delivering a powerful sound experience. The speaker incorporates advanced driver technology for clear mids and an extended frequency range. It is compatible with various audio inputs, making it a versatile choice for multiple setups, from casual listening to more complex audio systems.

Moving to the A5, this model emphasizes broader soundscapes without sacrificing clarity. It boasts a robust cabinet design, which minimizes resonance and distortion. The A5 features a high-performance woofer and tweeter that work seamlessly to produce a balanced audio profile. Added connectivity options, including Bluetooth, allow for easy streaming from devices, making it convenient for users who value flexibility.

The A6 takes things a step further with enhanced power and performance. Designed for both home and professional use, it offers a more extensive dynamic range and impressive volume levels without compromising on sound quality. The A6 implements proprietary technologies such as phase coherence, ensuring that audio playback is precise and immersive. Its stylish design is also a significant selling point, allowing it to blend seamlessly into any environment.

The A7 is built for audiophiles who demand more from their equipment. With a focus on advanced acoustics, the A7 incorporates a sophisticated crossover design that ensures each frequency range is represented accurately and with depth. It also features high-grade materials in both its components and cabinet construction, resulting in a durable yet aesthetically pleasing product.

Finally, the A8 represents the pinnacle of the A-series lineup. Designed for large spaces or high-fidelity requirements, the A8 delivers extraordinary sound pressure levels and richness in audio. Integrated with advanced DSP technology, it offers tailored sound profiles suitable for different environments. The A8 is engineered for exceptional bass performance, ensuring that every note is not just heard, but felt.

Collectively, the A1, A5, A6, A7, and A8 series by DLS Svenska AB illustrates a commitment to quality, design, and innovation. Each model caters to various needs and preferences, ensuring that there is a perfect match for any audio enthusiast.
Top Page Image Contents