DLS Svenska AB Speaker IRIDIUM 10I User Manual

Iridium 10i  
Iridium 12i  
Iridium 15  
ULTIMATE Iridium  
SERIES SUBWOOFERS  
WELCOME  
SUBWOOFER ENCLOSURES, GENERAL  
Thank you for buying a DLS ULTIMATE Iridium subwoofer.  
The subwoofer must be installed correctly in order to work well.  
This manual will show you how to install it like a pro. Please  
read the entire manual before beginning the installation.  
Install the subwoofer 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.  
Build your enclosure in a stable and airtight material. The best  
is MDF-board, 19 mm, or particle board, 22 mm. 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 by the speaker data.  
SEALED ENCLOSURES  
The speakers are designed for enclosure mounting. In "open  
air" installations the power handling capacity is reduced by 30%  
from the nominal value. We dont recommend ”open air”  
installations for Ultimate Iridium subwooers.  
Sealed enclosures 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.  
Large speakers need larger boxes. Two speakers need a box  
of the double size etc. The enclosure must be completely air-  
tight.  
CONNECTION OF SUBWOOFER  
A sealed enclosure should be filled with acoustic wool up to 75  
- 100%.  
How to connect depends on what type of amplifier you use.  
The best is to follow the instructions given in the manual for the  
amplifier. Most amplifiers today have built-in lowpass crossover  
and possibilities to connect your subwoofer in bridge mode.  
Two 4 ohm subwoofers are often connected in stereo mode  
since most amplifiers can´t handle bridge mode loads below 4  
ohms.  
A sealed enclosure has a lower efficiency than a vented  
enclosure, but they can handle high power and are easy to build.  
A subwoofer in a sealed enclosure creates a tight bass suitable  
for the audiophiles listening to classical music, jazz and soft  
rock.  
The Iridium subwoofers have dual, four ohm, voice coils. Each  
voice coil has an impedance of 4 ohms. If they are connected in  
series the resulting impedance is 8 ohms. If they are connected  
in parallel the resulting impedance is 2 ohms. Make sure to  
connect in a way that don´t ruin the amplifier. If you have a DLS  
Ultimate amplifier it´s possible to connect the voice coils in  
parallel, these ampliers are 1 ohm stable.  
VENTED ENCLOSURES  
A speaker in a vented enclosure has a higher efficiency (+3 dB)  
and higher power handling capacity than in a sealed enclosure.  
In a vented enclosure the sound from the speaker and the port  
work together creating a higher sound level. The sound from  
the port must come out in the same phase as from the speaker  
otherwise the result is bad.  
The size of the vented enclosure is decided by the speaker  
data just as for the sealed one.  
We also recommend the use of a subsonic highpass filter. This  
gives a better bass reproduction with less "rumble". In most  
DLS amplifiers this feature is already built-in.  
The size of the vehicle often decides the practical size of the  
enclosure. Asmaller enclosure has a higher resonant frequency  
than the larger one. The size of the enclosure should not be so  
big that the speaker plays below it´s own free air resonance  
(Fs), then it loose in power handling capacity.  
For wiring use high class speaker wires, minAWG13 (2.5 mm2).  
For example DLS SC 2x4.  
The port does not have to be fully inside the enclosure as long  
as the area and length are correct. Sometimes you need two or  
more ports in an enclosure. You can convert from one to two or  
more ports as long as the total port area is the same.  
ENCLOSURE DAMPING  
Most enclosures should be damped inside with syntetic  
(acoustic) wool or damping mat (line). Attach the damping ma-  
terial on the wall opposite from the speaker and port. A sealed  
enclosure should be filled up to 70-100% with acoustic wool.  
RUNNING-IN PERIOD  
IMPORTANT!  
Think of the speaker weight when you install it. If you don´t  
mount it properly it can come loose.  
Allow the speaker to play for at least 15-20 hours. After this  
time the performance is correct.  
WARRANTY SERVICE  
This speaker is covered by warranty, depending on the  
conditions in the country where it is sold. If the speaker is retur-  
ned for service, please include the original dated receipt with  
the product.  
Technical Assistance  
For technical assistance ask the shop where the product was  
sold or the distributor in your very country.You can always phone  
the DLS Helpdesk in Sweden + 46 31 840060 or send an e-  
DLS Svenska AB  
P.O. Box 13029  
SE-40251 Göteborg, Sweden  
Tel: +46 31 840060  
Fax: +46 31 844021  
We follow a policy of continuous advancement in development.  
For this reason all or part of specifications & designs may be  
changed without prior notice.  
 
ABOUT THE RECOMMENDED ENCLOSURES  
The performance of these recommended 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 tightness between trunk and interior. In most cases  
the recommended enclusures below is the best choise.  
The vented box is to be preferred.  
ENCLOSURE PLACING IN DIFFERENT TYPES OF  
VEHICLES  
In small vehicles like VW Golf, Peugeot 306 and similar the  
bass box should be installed with both speaker and port directed  
backwards.Alternatively booth speaker and port can be directed  
upwards. This way of mounting is valid for all types of vehicles  
where the trunk is incorporated with the inner compartment.  
- The given enclosure volume is the inner volume.  
In sedan vehicles with the passenger compartment separated  
from the trunk, the enclosure should be installed with booth  
speaker and port directed towards the rear seat. Some cars  
have an opening in the middle of the rear seat for loading skis  
etc. You can install the enclosure behind this opening and direct  
speaker or port through this opening. There must be some free  
space in front of the port, (between the rear seat and the port  
opening).  
- Volumes occupied by speaker and ports have already  
been added to the given enclosure volumes so don’t add  
any volume.  
- Use conical bass ports for best result. (DLS BP75 for  
Iridium 10i & 12i, BP110 for Iridium 15). Cut the tube to  
the correct length.  
There are two flanges coming with this kit. The larger  
one is for the outside, and the smaller one should be  
attached to the tube inside the enclosure.  
Make a round hole in the box where you want to mount  
the bass port.  
In large vehicles like station wagons the best sound is achieved  
with the enclosure installed behind the rear seat with booth spea-  
ker and port directed backwards. Alternatively you can install  
the enclosure on one side of the luggage compartment.  
The larger flange should beattached to the outside of  
the box. Fasten it to the box with screws or with some  
glue. There are prepared drill holes on the back of the  
flange.  
The smaller flange is for the inner end of the tube. Use  
a PVC-glue to attach it on the tube.  
Then glue the tube to the port mounted in the box.  
Use sealing compound round the flange to make the  
box as airtight as possible.  
CALCULATE YOUR OWN ENCLOSURE  
Box volumes:  
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 liters.  
A trapezoid box is calulated as this:  
Vol=width (W) x height (H) x upper depth (UD) + lower depth (LD)  
W
2
Be sure to measure the  
inside dimensions.  
UD  
H
LD  
Vented enclosure:  
RECOMMENDED ENCLOSURES Iridium 10i  
Wiring  
Volume  
Port*  
Damping  
F3  
: Use parallel V/C  
: 25 / 0,88 (litre / ft3)  
: 3”(6,8 cm) x 38 cm / 15”  
: Line inside  
Sealed enclosure:  
Wiring  
Volume  
Damping  
F3  
: Use single V/C  
: 22 / 0,78 (litre / ft3)  
: Acoustic wool  
: 40 Hz  
Width  
Upper  
depth  
: 31,7 Hz  
* Use the BP 75 port kit . Mount the flanges  
on the tube ends. The port should be on the  
side of the enclosure.  
Cut the tube to it’s correct length.  
Outside box dimensions:  
Outside box dimensions:  
Width  
Height  
Lower depth  
Upper depth  
Material  
: 529 mm (20,83”)  
: 320 mm (12,60”)  
: 247 mm (9,72”)  
: 147 mm (5,79”)  
: MDF 19 mm (3/4”)  
VENTED  
Width  
Height  
Lower depth  
Upper depth  
Material  
: 599 mm (23,58”)  
: 320 mm (12,60”)  
: 247 mm (9,72”)  
: 147 mm (5,79”)  
: MDF 19 mm (3/4”)  
For best result, use any of these  
recommended enclosures.  
If you want to modify the dimensions,  
use the calculation methods  
described above.  
Depth 599  
341  
730  
730  
SEALED  
Depth 599  
114  
730  
114  
Depth 529  
730  
730  
Depth 599  
320  
341  
599  
247  
282  
2 pcs  
529  
247  
Depth 529  
730  
114  
114  
202  
Technical drawing for a  
22 litre enclosure.  
The Iridium 10i can work well in  
a 22 litre sealed enclosure.  
Here is the drawing for the box  
and the separate boards needed  
to build a suitable enclosure.  
Technical drawing for a  
25 litre enclosure.  
The Iridium 10i can work well in  
a 25 litre vented enclosure.  
Here is the drawing for the box  
and the separate boards needed  
to build a suitable enclosure.  
Depth 529  
320  
Depth 529  
208  
282  
730  
2 pcs  
202  
Depth 599  
730  
208  
 
RECOMMENDED ENCLOSURES for Iridium 12i  
Width  
Vented enclosure:  
Wiring  
Volume  
Port*  
Damping  
F3  
: Parallel VC  
: 36,5 / 1,29 (litre / ft3)  
: 3”(6,8 cm) x 27 cm / 10,63”  
: Line inside  
Upper  
depth  
: 32 Hz  
* Use the port included in the subwoofer  
packing.Mount the flanges on the tube ends.  
Dont cut the tube, it has the correct length.  
Outside box dimensions:  
SEALED  
Sealed enclosure:  
Wiring  
Volume  
Damping  
F3  
Outside box dimensions:  
Width  
Height  
Lower depth  
Upper depth  
Material  
: Parallel VC  
VENTED  
: 19,3 / 0,67 (litre / ft3)  
: Acoustic wool  
: 56 Hz  
Width  
Height  
: 550 mm (17,72”)  
: 350 mm (13,78”)  
: 313 mm (12,32”)  
: 213 mm (8,39”)  
: MDF 19 mm (0,75”)  
Lower depth  
Upper depth  
Material  
For best result, use any of these  
recommended enclosures.  
If you want to modify the dimensions,  
use the calculation methods  
described on previous page.  
: 400 mm (15,75”)  
: 350 mm (13,78”)  
: 256 mm (10,08”)  
: 156 mm (6,14”)  
: MDF 19 mm (0,75”)  
Technical drawing for a  
19,3 litre enclosure.  
Technical drawing for a  
36,5 litre enclosure.  
123  
180  
Depth 400  
740  
740  
740  
Depth 550  
740  
740  
740  
370  
370  
312  
312  
Depth 400  
123  
Depth 550  
180  
2 pcs  
269  
2 pcs  
212  
Depth 400  
350  
Depth 550  
350  
Depth 400  
740  
Depth 550  
274  
400  
256  
740  
313  
550  
217  
RECOMMENDED ENCLOSURES for Iridium 15  
Width  
Upper  
depth  
VENTED  
SEALED  
600  
304  
170  
Lower  
depth  
278  
600  
144  
Sealed enclosure:  
Vented enclosure:  
Wiring  
Volume  
Damping  
F3  
: Single VC  
Wiring  
Volume  
Port*  
Damping  
F3  
: Parallel VC  
: 50 / 1,765 (litre / ft3)  
: 4”(10,3 cm) x 31 cm / 12,2”  
: Line inside  
: 38,3 Hz  
: 45,5 / 1,6 (litre / ft3)  
: Acoustic wool  
: 44,6 Hz  
412  
422  
2 pcs  
235  
2 pcs  
261  
Outside box dimensions:  
Width  
Height  
Lower depth  
Upper depth  
Material  
* Use the BP 110 port kit . Mount the flanges  
on the tube ends. The port should be on the  
side of the enclosure.  
: 600 mm (23,62”)  
: 460 mm (18,11”)  
: 278 mm (10,94”)  
: 178 mm (7,01”)  
: MDF 19 mm (3/4”)  
Cut the tube to it’s correct length.  
Depth 600  
266  
Depth 600  
240  
780  
770  
Outside box dimensions:  
Width  
Height  
Lower depth  
Upper depth  
Material  
: 600 mm (23,62”)  
: 450 mm (17,71”)  
: 304 mm (11,96”)  
: 204 mm (8,03”)  
: MDF 19 mm (0,75”)  
Technical drawing for a  
45 litre enclosure.  
Depth 600  
475  
Depth 600  
465  
780  
780  
780  
770  
770  
The Iridium 15 works well in a  
45 litre sealed enclosure.  
This is a drawing for the 45  
litre box and the separate  
boards needed to build a  
suitable enclosure.  
Technical drawing for a  
50 litre enclosure.  
Depth 600  
144  
Depth 600  
770  
170  
The Iridium 15 works well in  
a 50 litre vented enclosure.  
This is a drawing for the 50  
litre box and the separate  
boards needed to build a  
suitable enclosure.  
Depth 600  
460  
Depth 600  
450  
For best result, use any of these  
recommended enclosures.  
If you want to modify the dimensions,  
use the calculation methods  
described on previous page.  
 

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