DLS UP 2.5, Gothia 3, UP 2.5B, Ultimate UP2.5i, UR 2.5 Owner's Manual

Welcome

Thank you for buying a DLS Ultimate speaker.
This manual will show you how to do a correct installation. Please
read the entire manual before beginning the installation. Install
the speakers yourself if you feel confident with our instructions
and if you have the proper tools. The ULTIMATE speakers are
our best speaker line but a poor installation job can destroy the
final result even from these speakers. So if you feel unsure,
turn over the installation job to someone better suited to it.

Installation

The speakers should be installed high up in the door side or in
the dashboard. These speakers doesn’t require any box.
When the midrange is mounted high up on the dashboard the
mid level creates a frequency peak in some vehicles. If so use
the low ”mid level” in the filter box. If the level is still too high,
connect a 3-5 ohm resistor in series with the + feed. We
recommend you to install them in a strong baffle of MDF­board or similar. A strong baffle will improve the sound quality.
If you don’t have the possibility of doing strong baffles you
must use the steel rings coming with the drivers to improve
the stability of the mounting.

Wiring

Use high quality speaker cables like DLS HQS or similar.
Avoid using the factory pre-installed cabling, they will not give
the sound reproduction that you should expect from these
high class speakers.
Make sure the cables don’t get jammed causing a short circuit
to ground. This can damage the output circuits of your head
unit or amplifier.
Connect the cables with correct polarity to the speakers.
Observe the markings on the terminals. The red marked
terminal is plus and the black is minus.

UP 2.5 / UP2.5i
UP 2.5B
UR 2.5
Gothia 3

Technical data UP 2.5 / UP 2.5i / UP 2.5B

Break-in period

Allow the speakers to play at normal volume for at least 15-20
hours. After this time the performance is correct.

Technical Assistance

For technical assistance ask the shop where the product was
sold or the distributor in your country.
You can also send an e-mail to [e-mail]
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.

Warranty service

This speaker 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 (or a
copy) with the product.

DLS ULTIMATE

MIDRANGE SPEAKERS

DLS Svenska AB

P.O. Box 13029

SE-40251 Göteborg, Sweden

Tel: [phone]

Fax: [phone]

E-mail: [e-mail]

www.dls.se

Size 2,5" ( 6,3 cm)
Nom. power (RMS) 90 Watts RMS
Maximum power 160 Watts
Frequency range 400 Hz-8000 Hz
Rec. frequency use for 500 Hz - 5000 Hz
active crossover Use HP 18-24 dB slope /oct.
Sensitivity 91 dB / W / m
Resonanst freq. / Fs 490 Hz
Magnet diameter 65 mm / 2,56”
Outer diameter 100 mm / 3,94”
Installation depth 15 mm / 0,59”
Mounting hole 82 mm / 3,23”
Cone Doped fabric
Voice coil 52 mm / 2” al. flat wire

Technical data UR 2.5

Size 2,5" ( 6,3 cm) with rear chamber
Nom. power (RMS) 90 Watts RMS
Maximum power 160 Watts
Frequency range 400 Hz-8000 Hz
Rec. frequency use for 500 Hz - 4500 Hz
active crossover Use HP 18-24 dB slope /oct.
Sensitivity 91 dB / W / m
Resonanst freq. / Fs 430 Hz
Magnet diameter 65 mm / 2,56”
Outer diameter 100 mm / 3,94”
Installation depth 26 mm / 1,02”
Mounting hole 82 mm / 3,23”
Cone Doped fabric
Voice coil 52 mm / 2” al. flat wire

Technical data Gothia 3

Size 2,5" ( 6,3 cm) with rear chamber
Nom. power (RMS) 100 Watts RMS
Maximum power 160 Watts
Frequency range 250 Hz-8000 Hz
Rec. frequency use for 400 Hz - 4500 Hz
Active crossover Use HP 18-24 dB slope /oct.
Sensitivity 91 dB / W / m
Resonanst freq. / Fs 280 Hz
X-max +- 0,5 mm
Magnet diameter 80 mm / 3,15”
Outer diameter 120 mm / 4,72”
Installation depth 28 mm / 1,1”
Mounting hole 95 mm / 3,74”
Cone Doped fabric
Voice coil 75 mm / 3” al. flat wire

Crossover

The speakers must be used with either a passive or an active
filter in a 3-way configuration. If you can’t use active filters you
can build your own passive filter like in this example. It is a 6/6
dB slope band pass filter ~500 - 4500 Hz

This rather simple passive filter can be used for UP2.5 / UR2.5.
Iridium 3 should only be used in active crossover mode. Use
polypropylene capacitor and low-resistance air coil. The resistor
is used to adjust the level. The 4,7 omhs is a standard value
but you must find a resistor value that matches the sensitivity
of the other speakers in your system. In some configurations
you don’t have to use a resistor at all.

12

μμ

μμ

μF 0,25 mH

234567

8

+

-

4,7

ΩΩ

ΩΩ

Ω

Changing grilles on UR2.5

1. Remove the rear chamber by bending with a
screwdriver on the three spots where it is
attached to the driver. Be careful!

2. Rear chamber removed.

3. Remove the grille from the driver unit like this.

4. Grille removed.

5. The other grille in place.

6. Reinstall the rear chamber and use the screws to put
all parts together again.