DLS Svenska AB A3, A8 Series, A2 warranty DLS A1, DLS A4, DLS A5, DLS A6, DLS A7, DLS A8

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ULTIMATE A-series

Crossovers / filters (general)

DLS A-series amplifiers include highpass filter (HP) and lowpass filters (LP).

The HP-filterscan 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. A nor- mal setting is 20 - 30 Hz.

The HP-filter can also be used together with a front or rear stereo system to remove frequencies below the crossover setting. In a system with a separate subwoofer it´s normal to limit the bass reproduction to the front system. A normal setting is between 80 - 100 Hz, but feel free to try other settings.

If you have problems with the mid bass driver ”reaching the bottom” (the voice coil reches the bot- tom pole plate) at high volumes, use the HP-filter to avoid this with a setting at 50 - 80 Hz.

A subsonic filter is actually a HP-filter.

The LP-filtersare normally used when you connect a subwoofer in bridge mode. The filter can be switched in and out. A normal setting is 70 - 80 Hz. The filter slope is 12 dB.

Active crossover.

A4 and A7 the LP and HP-filters have a frequency range making it possible to use them for active crossover to a 2-way speakersystem.

Crossovers on each model

DLS A1

DLS A1 has an internal adjustable HP-filter that can be switched in/out. It can be set from 20 up to 200 Hz. It also has an internal fixed LP-filter that can be set to either 70 or 90 Hz. The filter switch is available through a hole in the bottom plate.

DLS A2 och A3

DLS A2 andA3 has an adjustable LP-filter that can be switched in/out. It can be set from 50 - 125 Hz. There is also an adjustable HP-filter that can be switched in/out.The filter is adjustable from 20 - 200 Hz.

PHASE SHIFT BUTTON ON A3:

DLS A3 has a button marked ”PHASE”. Use this button to phase reverse the speaker output. The button is only working when the lowpass filter is in use. Only use this button when you want to phase reverse a subwoofer to get the best sound.

DLS A4

DLS A4 is equipped with adjustable HP-and LP- filt- ers on all channels. These can also be switched in/ out. The filters are equipped with a multiplication button for improved flexibility.

The filter setup are as follows:

Front:

Lowpass (LP) 50 - 125 Hz

Highpass (HP) 20 - 200 Hz alt 60 - 600 Hz (x 3 button)

Rear:

Lowpass (LP) 45 - 200 Hz alt. 90 - 400 Hz (x 2 button) Highpass (HP) 20 - 200 Hz

The x2 and x3 buttons are used if you run a 2-way system with active crossover between mid-bass and tweeter.

DLS A5

Front channels:

DLS A5 has an internal adjustable HP-filter that can be switched in/out. It can be set from 50 up to 150 Hz.

Sub / mono channel:

The mono channel filters are for use only with one or more subwoofers There is a LP-filter adjustable from 40 up to 90 Hz, and a subsonic filter at 25 Hz that can be switched in-out.

DLS A6

DLSA6 is a mono amplifier for use only as a subwoofer amplifier.

It has a fixed 25 Hz subsonic filter that can be switched in/out.

It also has a LP-filter adjustable from 50 - 125 Hz. This filter can not be disconnected.

DLS A7

This is a five channel amplifier with a lot of filter possibilities described in detail on page 8.

DLS A8

DLS A8 amplifiers include HP-filter and LP-filters on both front and rear channels. The HP-filter has two fixed frequencies, 65 or 85 Hz. The HP-filter can be disconnected in position OFF. The LP-filter is variable between 50 and 125 Hz.

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Contents Welcome ContentsUltimate A-series Before you begin to install Disconnect BatteryAmplifier location Tools Ultimate A-series Tools and material needed Routing wiresAmplifier installation kit Conversion Gauge mm2Fan terminal For RCA cable signal inputUltimate A-series Remote terminal REM Ground Terminal GNDPower / Protect light Ultimate A-series Phase control on A5, A6 and A7Input Wiring Remote bass level and phase shift control on A5, A6 and A7Amplifier front Ultimate A7DLS A6 DLS A1DLS A4 DLS A5Channel Crossovers / filters on A7Highpass filter on front channels Highpass filter on rear channels Filters on subConstant Whining Noise Noise ProblemsSpeaker Polarity Check Whining Noise Varying with Engine RevolutionsOne speaker pair connected in stereo Button out Fuse Pre out 60 a FM1 107,3 Battery Volt RemoteUltimate A1-A2 DLS A1 and A2 can be connected in different waysButton out Connection in mono with one subwoofer in bridge modeTwo stereo speaker pairs Connected in parallel DLS A1Stereo with one front and one rear speaker system Wiring Examples DLS A3Ultimate A3 DLS A3 can be connected in different waysDC Feed DLS A3 Mono bridge modeHP-filter setting 30 Hz LP-filter setting 60-80 Hz Button One or more subwoofersDC Feed DLS A4 Wiring Examples A4HP-filter setting 80-100 Hz HP-filter setting 30 Hz LP-filter setting 70-80 Hz ButtonButton out Pre out Rear Ultimate A4 DC-FEED DLS A4HP-filter not in use LP-filter not in use FM1 107,3 HP-filter not in use LP-filter not in useButton Own tests HP-filter setting 400 HzStereo and a subwoofer in mono Wiring Examples A5Ultimate A5 Connection of a front systemConnection of two 4 ohm subwoofers Wiring Examples A6Ultimate A6 DC Feed DLS A6 A7 in Bridge Mode Wiring Examples A7DC Feed DLS A7 Front Rear Tweeters with active high-pass x-over setting at 4 kHzSwitch settings in this example Filter settings Button HP-filter setting 80 Hz LP-filter setting 400 Hz HP-filter settingFilter settings Switch settings in this example Button Out Button out Wiring Examples A8Example 1 Speaker wiring with front and rear speakers Ultimate A8Subwoofer 2 4 ohm LP-filter settingFilter settings Front HP-filter OFF LP-filter Setting 70-80 Hz Rear HP-filter OFFTest power wiring Reconnect BatteryTest speaker connections Specifications A1 to A6 Subchannel Specifications A7 & A8Channel 1&2 Channel 3&4

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.
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