DSL RCS10.D2 10 Inch Slim Subwoofer User Manual
- June 3, 2024
- DSL
Table of Contents
DSL RCS10.D2 10 Inch Slim Subwoofer
Welcome to DLS!
Thank you for buying a DLS Reference RCS 10.D2 subwoofer. For us, it’s all
about the sound experien-ce. We care deeply about sound and construction
quality. In order for your experience to be as optimal as possible, it is
important that you fully read this manual, preferably before you start your
installation. Keep the manual in a safe and accessible place for future
reference.
Your subwoofer must be installed correctly in order to work as intended. Make
sure you have all necessary tools nearby before starting and that you are
completely confident in how to process. If you feel the slightest uncertainty;
feel free to take the help of an experienced installer or a car audio dealer.
Warranty
This subwoofer is covered by warranty, depending on the conditions in the country where it is sold. If the speaker is returned for service, please include the original dated receipt with the product.
DECLARATION OF CONFORMITY
DLS subwoofers for vehicles are manufactured in accordance with the EU
directive EEC 95/54 (72/245/ EEC) and are marked with the approval number.
They are also marked in accordance with the WEEE-directive 2012/19/EC. The
products are also produced in accordance with the EU RoHS directive
2015/863/EU.
Installation
Your RCS 10.D2 subwoofer has a dual 2 ohm voice coil. How to connect the
subwoofer depends on what type of amplifier you use and it´s optimum load. The
best way to do a correct connection is to follow the instructions given in the
manual for the amplifier. Most amplifiers today have built-in low pass
crossover and possibilities to connect your subwoofer in bridge mode.
When designing a subwoofer system, consider the following:
- Subwoofers being used in the same enclosure or powered by the same amplifier should be identical. Do not use different types of subwoofers that will play in the same frequency range.
- If you are designing a multiple sub- woofer system, be sure to configure the subwoofers so that they each receive the same amount of power from the amplifier.
- Do not mix serial and parallel connected woofers, voice coils or pairs. If you plan to use an odd number of subwoofers, be sure to connect all the woofers in either series or parallel connection.
- For wiring, use high class speaker wires, min AWG13 (2.5 mm²).
Wiring diagram
Warning! Do not expose your amplifier to loads below the manufacturer’s recommen-dations. Below you will find some examples of different connection types. Use the following examples to determine the required impedance load of your connec-tion.
Parallel connection
One 2 Ohm subwoofer = 1 Ohm load
Parallel connection
Two 2 Ohm subwoofer = 0.5 Ohm load
Serial connection
One 2 Ohm subwoofer = 4 Ohm load 
Serial connection
Three 2 Ohm subwoofer = 12 Ohm load
Serial connection
Three 2 Ohm subwoofer = 12 Ohm load
Serial / Parallel connection
Three 2 Ohm subwoofer = 1.33 Ohm load
Serial / Parallel connection
Three 2 Ohm subwoofer = 3 Ohm load
Running-in time
Allow the subwoofer to play for at least 15-20 hours in order to perform at it´s possibly best. This run-in can be made with bass tone sweep or with just music. Start at a moderate volume and increase the volume step by step during the running in period. After the 15-20 hour run in session the performance and characteristics will be in the correct condition.
DLS support
For technical assistance, ask your car audio dealer where the product was sold or the distributor in your country. You can always contact the DLS Helpdesk in Sweden at this e-mail: info@dls.se. Information can also be found on our WEB-site www.dls.se We follow a policy of continuous advancement in development. For this reason, all or part of specifications & designs may be changed without prior notice.
Enclosure info
This subwoofer is normally designed for enclosure mounting. In ”open air” installa-tions the power handling capacity is reduced by more than 30% from the nominal value. We do not recommend using an ”open air” installation for the RCS10.D2 subwoofer.
General
- Build your enclosure in a stable and airtight material. MDF-board or particle board, 19-25mm is two good choices. Larger enclosures must have bracing inside to avoid vibrations. The enclosure must be completely airtight. Use sealing compound in all joints, also around the cable terminals. The size of the enclosure is decided and calculated by the electro-acoustic parameters of the woofer.
- DLS recommends that you should choose the enclosure you will use based on the type of music you listen to, how much amplifier power you will use for the subwoofer and how much space inside the vehicle you can devote to a subwoofer enclosure.
- Note! RCS10.D2 has a design with “open voice coil” for improved cooling. This construction gives the best sound perfor-mance. To prevent dirt from entering the voice coil gap, follow these instructions:
- Keep the subwoofer in the plastic bag until it is time for installation.
- Carefully clean the enclosure inside with a vacuum cleaner before mounting the speaker,
Sealed enclosures
Sealed enclosures constructions is straight forward and are easy to build. The
size is not critical, but it can’t be too small. The speaker data such as Fs,
Qts, Vas and X-max decides the size of the enclosure. A large subwoofer needs
larger boxes. Two woofers need a box of the double size etc. The enclosure
must be completely airtight.
A sealed enclosure provides the most control over the woofer’s movement, a
woofer mounted in a sealed enclosure will handle more power than a woofer
mounted in a vented enclosure type.
Sealed enclosures provide more accurate sonic reproduction than other
enclosure types when mounted inside a vehicle, so they are well suited to all
types of music. An optimum sealed enclosure is always smaller than vented
enclosures optimized for a particular subwoofer, so they require the smallest
amount of space inside the vehicle.
Vented enclosures
Vented enclosures are built in the same way as sealed but with a vent hole
(port), normally on the front panel.
Vented enclosures provide normally a better efficiency in the 40-50 Hz range,
but this efficiency comes at the expense of sound in the lowest octave
(normally below 40Hz), and at the expense of some control and power handling
at the lowest frequen- cies ( below the ports tuning frequency). If you are
using a small amplifier a vented box will provide more perceived bass output
from less power. Vented enclosures are also well suited to a variety of music
types.
Vented enclosures require more of the builder and the volume and port must be
built more exactly to the specifications. An optimum vented enclosure is
always larger than the optimum sealed box for the same woofer and will require
more space inside the vehicle.
Damping
Most enclosures should be damped inside with synthetic (acoustic) wool or
damping mat (line). In a sealed box we recommend the use of damping wool and
should be filled with acoustic wool up to 75%.
In a vented enclosure attach the damping material on the wall opposite from
the subwoofer and port. If you require more damping is also possible to add
sides and top/bottom. Do not place any damping material in the port or at it´s
openings.
Recommended enclosures
The recommended enclosure volume refers to the inner volume and includes the
driver displacement volume.
| Type | Volume | Qtc | F3 | Fb | Port |
|---|---|---|---|---|---|
| Sealed | 10-15L |
0.35 – 0.53 cu ft
| 0.737 – 0.631| 57Hz – 56Hz| –|
Vented| 35L
1.23 cu ft
| –| 34Hz| 42Hz| D: 4” / 104mm
L: 16.5” / 420mm
Note! The performance of the recommen-ded enclosures will vary from vehicle to vehicle. It is more difficult to get a tight and well defined bass in a SEDAN vehicle because of the separated space between the trunk and the passenger compartment.
Enclosure placement
- In smaller vehicles of different models (like a VW Golf, Peugeot 206, 306, etc. the enclosure should be installed with the subwoofer directed backwards or directed
- upwards. This way of mounting is valid for all types of vehicles where the trunk is incorporated with the inner compartment.
- In sedan vehicles where the passenger compartment is separated from the trunk, one option is to install enclosure with the subwoofer directed towards the rear seat. Some cars have an opening in the middle of the rear seat for storage. You can install the enclosure behind this opening and direct speaker through this opening. Be sure you seal the sides of the enclosure with additional covering so no pressure will slip between the opening and your subwoofer and into the trunk area. The floor and sides in the trunk area can also be good alternatives for the enclosure placement.
- In large vehicles like station wagons the best sound is achieved with the enclosure installed behind the rear seat with subwoo-fer directed backwards. Alternatively you can install the enclosure on one side of the luggage compartment.
Calculate enclosure volume
When calculating the inner volume of an enclosure you just multiply the width (W) x height (H) x depth (D). Use measures in dm and you will get the answer in litres.
A trapeziod box is calculated as this:
Vol = Width(W) x Height (H) x (Upper depth(UD) + Lower depth(LD))
Specifications
Art no CS-RCS10.D2 Electro-Acoustic Parameters
Size: 10”/250mm Fs: 33Hz
Impedance: 2 + 2 Ohm Re: 3.8 (1.9+1.9) Ohm
RMS power: 600W Qms: 6.37
MAX power: 1200W Qes: 0.51
Sensitivity: 85 dB 1W/1M Qts: 0.47
Voice coil size: 63.5 mm / 2.5” Cms: 0.15mm/N Voice coil material: 4-layer copper voice coil / TIL former Mms: 149.9g Cone material: Sandwich Composite / PP dust cap BI: 15.4
Magnet: 65 Oz Ferrite Vas: 26.2L
Freq. range: 25Hz –500Hz Sd: 346.4cm²
Weight: 6.0 kg Xmax: ± 11mm Vd: 1.7L
Product markings
- The crossed-out wheelie bin symbol means that the product, literature and pac-kaging included must be taken to separate collection at the end of their working life. Do not dispose of these products as unsorted municipal waste: take them for recycling. For info on your nearest recycling point, check with your local waste authority.
- This product has been granted with the CE certification mark to show that the product follows the health, safety, and environmental protection standards for products sold within the European Economic Area (EEA).
- DLS products complies with the relevant provisions of the RoHS Directive for the European Union. In common with all Electrical and Electronic Equipment (EEE) the product should not be disposed of as household waste. Alternative arrangements may apply in other jurisdictions.
- DLS is a global partner of the European Mobile Media Association, an organisation that focus on promoting the custom made mobile media installations to consumers.
We follow a policy of continuous advancement in development. For this reason all or part of specifications & designs may be changed without prior notice. We reserve for possible typos, factual or numeric errors that may have been printed on any products, package designs, user manuals and/or other included accessories.
DLS speakers are engineered by DLS Sweden, a part of:
Winn Scandinavia AB
Elementvägen 15 – SE-702 27 Örebro – Sweden Tel: +46 19 20 67 65 – E-mail:
info@dls.sewww.dls.se