DSPPA DSP40I User manual

[email protected] /www.dsppatech.com The specifications will be subject to change without prior notice.
Copyright © Guangzhou DSPPA Audio Co.,Ltd All rights reserved.
DSP40I Invisible Speaker System
The DSP40I is a 40W invisible speaker that can be radiated in all directions. Thanks to the special driver unit
and special material used in the surface cover, DSP40I can perform with wonderful sound when it is installed
inside the wall or ceiling.
Totally invisible. When installed in the wall or ceiling and furnished with paint, the DSP40I can be integrated
with the surroundings and be totally invisible. It is an ideal choice for industrial and commercial applications
in shopping malls, office building and museums where background music and paging is needed.
Input 70V/100V
Wide Freq. Response: 100Hz -20 kHz
Max SPL:103±2dB
High sensitivity:87±2dB
Totally invisible, installed in the wall or ceiling
Excellent sound quality, for installation in high-end places
Model
DSP40I
Freq. Response
100Hz -20 kHz
Sensitivity (1w/1m)
87±2dB
Dimension
300mm×400mm×52mm
Input Voltage
70V/100V
Normal Power
20W/40W

[email protected] /www.dsppatech.com The specifications will be subject to change without prior notice.
Copyright © Guangzhou DSPPA Audio Co.,Ltd All rights reserved.
Coverage
The S.P.L fall-off
Conventional Cone Loudspeaker DSPPA Flat Panel
Max SPL
103±2dB
Weight
1.7 kg

[email protected] /www.dsppatech.com The specifications will be subject to change without prior notice.
Copyright © Guangzhou DSPPA Audio Co.,Ltd All rights reserved.
Installation
1. Cut a small aperture where needed to install and measure the distance
between the frames; make sure there is enough space to avoid the frame
behind the wall in order to put the back cover in.
2. Mark lines to confirm the position with the additional cardboard
(304mm×404mm).
3. Cut the aperture according to the marked lines by a saw or knife (as
figure A).
4. Pull the audio line through the hole of back cover.
5. Put one side of back cover into the hole then put the whole back cover.
6. Fasten down the installation surface and back cover as figure B (each side fasten 4 additional screws,
totally 8).
7. Connect the audio wire to the terminal of speaker.
8. Push the surplus audio wire out to avoid getting in touch of speaker’s
back.
9. Connect the speaker to the back cover; make sure there is 2mm distance
between the speaker and the edge and whether the speaker is at the
same level (as figure C).
10. Please test the speaker immediately: first of all check the impedance on
the other side, then test audio frequency with scanning signal in order to
confirm whether there are noises from the surface of speaker, back cover
or neighboring surface.
Figure A
Figure B
Figure C

[email protected] /www.dsppatech.com The specifications will be subject to change without prior notice.
Copyright © Guangzhou DSPPA Audio Co.,Ltd All rights reserved.
11. Putty the crack between the speaker and the installation surface.
12. Cover speaker and the crack with seaming mesh (as figure D).
13. Paint a 2mm depth putty on the whole installation surface (as figure E).
14. Test speaker once again.
15. After the test is over and when your plasterwork is completely dry, decorate the surface of the plaster
with paint, wallpaper, fabric or other coatings as required.
Figure D
Figure E