APART CM4T - User Manual

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CM4T built-in loudspeaker

Safety precaution

• Keep this manual for future reference.

• When cutting the mounting hole for the speaker, make sure there is sufﬁcient clearance behind the

panel (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 mounting panel can support the speakers weight.

• Use sufﬁcient amount of speakers to avoid dead spots.

• No mains 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.

• 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.

Warranty info

Warranty claims and claims for hidden defects can

be considered only if the defects appear within the

warranty period of 24 months and are notiﬁed within

8 days following their appearance per registered letter.

The warranty is not valid in case of an incident, wear,

for moving parts, power surges, inadequate packing

or shipping, improper use or storage and the disregard

of recommendations of Audioprof. The warranty only

concerns the spare parts and not the involved labor,

transportation or any other costs. The product must

be returned in the original packaging with the proof

of purchase by an Audioprof authorized reseller.

CM4T

The Apart CM4T is a stylish small built-in 100 volt loudspeaker. Thanks to its halogen-spot size, it

can be integrated into any interior style. It is ideal for speech and backgroundmusic in quiet areas,

toilets, cloakrooms, ... The speaker has a full metal frame and a coated dual paper cone for the

lowest distortion and increased resistance against moisture. The CM4T is easy to install thanks to its

simple, quick mounting system (2 spring clamps).

The general terms and conditions can be found here:

http://www.apart-audio.com/conditions/General_Terms_and_Conditions_Audioprof.pdf

WWW.APART-AUDIO.COM

Need help?

Do you have a question about the APART CM4T and is the answer not in the manual?

The Apart CM4T is a compact, stylish built-in loudspeaker designed for 100-volt systems, making it suitable for a variety of commercial and residential applications. Its halogen-spot size allows for discreet integration into diverse interior styles, ideal for areas requiring background music or speech, such as quiet zones, restrooms, and cloakrooms. The speaker features a full metal frame and a coated dual paper cone, engineered to deliver low distortion and enhanced resistance to moisture, ensuring durability and consistent audio quality in various environments.

Function Description:

The CM4T is primarily designed for sound reproduction in distributed audio systems. It functions as a passive loudspeaker, receiving amplified audio signals from a 100V or 70V amplifier and converting them into audible sound. Its dual paper cone design contributes to a broad frequency response, making it suitable for both speech intelligibility and background music reproduction. For low impedance applications, the integrated 100/70V transformer can be bypassed, allowing direct connection to a low impedance amplifier. The speaker's wide dispersion angle ensures even sound coverage, minimizing dead spots in the listening area.

Important Technical Specifications:

Outside Diameter: 135 mm
Depth: 74 mm
Cutout Diameter: 108 mm
Loudspeaker System: Dual cone
Woofer Size: 4 inch
Woofer Cone Material: Paper
Mounting System: 2 springs
100/70V Power Taps: 6 - 3 - 1.5 - 0.75* watts (*0.75 W: 70 volt only)
Impedance (Low Impedance): 16 ohms
Low Impedance Dynamic Power: 30 watts
SPL 1W/1m: 88 dB
Max SPL 1m: 103 dB
Frequency Response: 90 - 19 kHz
Main Construction Material: Steel
Grille Main Material: Aluminium
IP Rating: 50
Applicable Low Impedance: Yes
Applicable in 100V/70V: Yes
Dispersion Angle 1000 Hz: 180°

These specifications highlight the speaker's compact size, robust construction, and versatile power handling capabilities. The IP50 rating indicates protection against dust ingress, making it suitable for indoor environments where dust might be present. The wide frequency response ensures a balanced audio output, while the high maximum SPL allows for sufficient volume in various settings.

Usage Features:

Easy Installation: The CM4T boasts a simple, quick mounting system utilizing two spring clamps. This design facilitates straightforward installation into a pre-cut hole in a ceiling or wall panel.
Versatile Connectivity: It supports both 100V/70V distributed audio systems and low impedance applications. For low impedance use, the internal transformer can be disconnected, allowing direct wiring.
Discreet Design: Its compact size and halogen-spot aesthetic allow it to blend seamlessly into various interior designs without being obtrusive.
Moisture Resistance: The coated dual paper cone enhances resistance against moisture, contributing to the speaker's longevity and performance in environments with varying humidity levels.
Wide Dispersion: A 180° dispersion angle at 1000 Hz ensures broad and even sound coverage, reducing the need for an excessive number of speakers to cover a given area.

Maintenance Features:

Durable Construction: The full metal frame and aluminum grille contribute to the speaker's overall durability, reducing the likelihood of damage from minor impacts or environmental factors.
Moisture-Resistant Cone: The coated dual paper cone offers improved resistance to moisture, which helps prevent degradation of the speaker driver over time, particularly in areas where humidity might fluctuate.
Qualified Personnel Servicing: The manual emphasizes that the apparatus should only be serviced by qualified personnel. This ensures that any necessary repairs or maintenance are performed correctly, preserving the speaker's functionality and warranty.
Pre-Installation Check: Users are advised to check the unit's condition upon unpacking and inform the shipper immediately if the carton box is damaged. This helps in identifying and addressing potential shipping-related issues promptly.
Cable Management: The manual stresses the importance of using cables of the right gauge, especially for long runs, and maintaining clear color indication and polarity. Proper cable management and healthy wiring are crucial for optimal sound quality and preventing damage to the amplifier or speaker.
Feedback Prevention: Avoiding loud feedback from microphones is recommended to protect the speaker from potential damage caused by excessive sound pressure levels.

The Apart CM4T is a reliable and user-friendly built-in loudspeaker, offering a blend of aesthetic appeal, robust performance, and straightforward installation for a wide range of audio applications. Its design considerations prioritize both sound quality and long-term durability, making it a practical choice for commercial and public spaces.