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User Instructions
CS-04 ceiling speaker
Description
The Fohhn® CS-04 is an extremely compact, unobtrusive 2-way
integral ceiling speaker with impressive balanced yet powerful
sound characteristics. The high-quality 4" subwoofers with superior
coaxial high-frequency driver and an excellent crossover form a spea-
ker system that achieves an outstanding degree of speech intelligibi-
lity and extremely homogenous dispersion characteristics as well as
dynamic music reproduction. The optimised bass reflex housing made
from flame-resistant steel ensures reliable sound production even in
applications where safety is paramount. There is a 4-stage selector
switch under the front grille for low-ohm control (16 ohms) and three
switch settings for 100V systems (30/15/7.5W).
Controlling
For maximum sound performance and operating reliability, we recom-
mend our digital DSP amplifiers. (e.g. D-2.750) We always integrate
a sophisticated passive crossover with electronic high-frequency pro-
tection so CS-04 can be operated with any professional amplifier.
Connections
There is a detachable four-pin Phoenix terminal
with cord grip under the cover on the rear of the
device for connecting the speakers. Two adjacent
pins are always wired in parallel to connect ano-
ther CS-04 in series. The connector is included in
the scope of delivery.
Side view
Fohhn Audio AG, Hohes Gestade 3-7, D-72622 Nürtingen, Germany, www.fohhn.com, info@fohhn.com
Quick mounting claws
3 quick mounting claws for quickly and safe attachment of the CS-
04. The ceiling must be no thicker than 32 mm to guarantee secure
attachment.
1.
2.
1. The speaker is inserted in the ceiling recess with the front grille
removed.
2. When the three mounting screws are tightened using a crosshead
screwdriver, the quick mounting claws unfold automatically and
secure the CS-04 to the ceiling.
3. The CS-04 is secured in position once all the screws are
tightened.
Low impedance or 100 volts operation
There is a 4-stage selection switch under the front grille for low-
impedance control (16 ohms) and three settings for 100V operation
(30/15/7.5W).
The operating mode can also be selected under the front grille after
the speaker is mounted. The following CS-04 operating modes are
available, depending on the installation location:
1.) 100 V - 30 W
2.) 100 V - 15 W
3.) 100 V - 7,5 W
4.) Low Z - 16 ohms
Turn the rotary switch on the baffle board using a wide slotted scre-
wdriver to select the settings.
Important note
To guarantee maximum operating reliability, the CS-04 should only
be operated in the Low Z (16 ohms) position in combination with a
subsonic filter (f-6 dB = 30 Hz, 24 dB / octaves).
3.
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