APart-Audio CM4 Bedienungsanleitung
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MANUAL
CM4
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Please read this manual before using the product in order to give you the needed
product and installation instruction to assure a seamless installation and non
compromised overall sound quality.
Thanks for purchasing our APart CM4 speaker, a small sized ceiling mount speaker.
The APart CM4 has been especially designed and engineered in our Belgian head
quarters for low ohmic systems where voice and music reproduction are of greatest
importance. The 4inch speaker has been developed in order to deliver a wide
dispersion angle in order to reduce the amount of needed speakers. The voice
coil with a 16Ohm impedance allows you to use 4 speakers in parallel on one 4
ohm capable amplifier channel. When using our APart Concept-1 amplifier you
have the ability to use 2 zones of each 4 speakers or one stereo/mono zone with
up to 8 APart CM4speakers. The build in filter ensures long life of the speaker and
enhances the speaker-response. This speaker is straight forward: connect and play
while no need to worry about filtering.
Introduction
• Keep this manual for future reference.
• Clean only with dry cloth
• When making the hole in your ceiling to mount the APart CM4, make sure
there is sufficient clearance behind the ceiling (no obstructions like A/C
channels, power lines etc,.)
• Take care of your speaker wires, they should be free of damage. Damaged
speaker wires might result in poor sound quality and can damage amplifiers.
• Only use accessories specified by the manufacturer
• Make sure the ceiling can support the speakers weight.
• Use sufficient amount of speakers to avoid death-spots.
Safety precaution
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• No main power shall be connected to the loudspeakers, doing so will damage
the speaker.
• This apparatus should only be serviced by qualified personnel. If not warranty
might be void.
• The speaker grill is fixed, removing it will damage the speaker.
• Use cable of the right gauge, certainly for long runs.
• Use cables with clear color indication and maintain polarity throughout the
whole system.
• Avoid loud feedback from microphones, this can damage your speaker.
• Please check the units condition after unpacking. If the outside of the carton
box has been damaged, inform your shipper immediately.
• Take notice that this speaker is intended for indoor use only. Do not expose the
speaker to rain or moisture.
• The Acoustical metal can improves overall sound response and protects against
falling debris.
• Suitable for high quality crystal clear audio thanks to the correction network,
acoustical can and non compromised speaker.
• Only 100mm mounting depth, so it can be used in a wide variety of
applications and wide range of ceiling materials.
• The strong retention spring system enables sufficient strength to allow very thin
ceiling material.
• 16Ohm voicecoil allows to connect up to 4 APart 16-Ohm capable speakers
to each 4Ohm stable amplifier channel.
Features and benets
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Note: when making the hole in your ceiling, double-check if there are no cables
or any other obstruction behind the ceiling. Cutting in the ceiling without this check
might result in damaged infrastructure and even damaged power lines.
Using the cutout template
1. 2.
3. 4.
A
A
B
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Use the correct polarity when daisy chaining speakers ! When a mistake occurs
in your daisy chain, it can severely impact speaker performance as there will be
audio-cancellation.
The daisy chain options are endless and the setup will depend on the capabilities of
your amplifier. Make sure when daisy chaining speakers that the total impedance is
not lower than the lowest specified impedance of your amplifier. Not following this
rule might result in distorted sound and might even damage your amplifier.
Connecting the speaker
Series wiring speaker diagram: (+) (-)
Total resistance = R1 + R2 + R3 + R4 + ...
(+)
(-)
Total resistance =
Parallel wiring speaker diagram:
1/R1 + 1/R2 + 1/R3 + 1/R4 + ...
1
R1 = Resistance of speaker 1
R2 = Resistance of speaker 2
R3 = Resistance of speaker 3
R4 = Resistance of speaker 4
A
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For speech and background music, the CM4 is highly suitable in stand alone
operation, for optimum and full bodied music we advice to add one of our
subwoofers to your system, like the CMSUB8 or SUBTILE.
Using the CM4 together with a Subwoofer
The APart CMSUB8 stereo ceiling
subwoofer is designed to reproduce a
fat and deep bass.
Featuring dual 8 ohms coils and
incorporated passive filter circuitry, the
CMSUB8 can be used in almost any
situation where extra bass is needed at
low to medium sound levels and where
interior decoration does not permit the
installation of a subwoofer cabinet.
The APart SUBTILE subwoofer is
designed to combine a strong, deep
bass with a discrete design and
small dimensions. It is very easy to
integrate even in the most demanding
environments.
You can use it lying flat on the floor
under furniture, hidden under a bench,
behind curtains, or wall-mounted using
the included brackets. SUBTILE may
look like a small heating radiator when
mounted to the wall, but instead of
heat, it will radiate musical vibes in your
room!
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Type CM4
Woofer 4inch, dual cone coated paper
Shape round
Rated power RMS 15W / 16Ohm
Music power RMS 30W / 16Ohm
Frequency response 100Hz to 20kHz +-3dB
Dispersion at 1kHz, 4kHz, 8kHz 180°, 80°, 40°
Color White
Chassis type Full metal chassis
Grill construction Metal
IP class 50
Protected against falling debris yes, by backside can
Fixing type 2 high strenght springs
Cut out dimension 115mm
Outside dimension 135mm
Depth dimension 100mm
Max wire size diameter 2,5mm2
Net weight 0,785Kg
Gross weight 0,925Kg
Specications
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Polar diagram 1000 Hz
Polar diagram 2000 Hz
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Polar diagram 4000 Hz
Polar diagram 8000 Hz
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Technical drawing with measurements
APart-Audio warrants this product to be free of defects in material and workmanship
for a period of one year for parts and for a period of one year for labor from the
date of original end-user purchase. This warranty is valid only for the original end-
user and cannot be transferred.
During the warranty period APart-Audio or one of its authorized service partners
shall either repair or replace any product, free of charge, that proves to be
defective on inspection by APart-Audio or its authorized service representative.
This warranty does not include, damages or product faults due to abuse, misuse or
faulty installation.
Warranty info
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