Desono™ CM Ceiling Loudspeaker

Models

• CM20DTS
• CM30DTD
• CM60DTD

Product Description

The Desono CM ceiling loudspeakers deliver crystal clear audio for all your public address and background music needs. The sealed back can and bass reflex port provide a controlled sound performance in any ceiling structure. The ultra-slim housing with minimal built-in depth has been tuned to optimize bass and midrange performance while maintaining sonic consistency. The matching sound image allows combining various models in the same room or area.

All models feature a tool-free rotatable 16 ohm and 70/100 volt power selector on the front. Designed with the installer in mind, they can be blind-mounted from below the ceiling, and feature a magnetic grille for easy toolless installation and removal. Grilles can also be painted to match the room decor. Additionally, the tap switch is located on the face of the loudspeaker, allowing adjustments to be made without requiring ceiling access.

Desono CM ceiling loudspeakers are an ideal choice for a multitude of environments that demand superior speech intelligibility and full range music reproduction.

Features

• Ceiling loudspeaker with back can for controlled sound performance in any ceiling structure
• Tuned bass reflex port for optimised low-frequency performance
• 4.25" LF driver for CM20DTS and CM30DTD, both with 1" tweeter
• 6.5" LF driver for CM60DTD, with 1" tweeter
• 60 W dynamic power handling for CM20DTS, 80 W for CM30DTD, and 120 W for CM60DTD
• Thin-edge loudspeaker grille for elegant integration
• Easy grille mounting with integrated neodymium magnets
• Grille safety wire prevents grille from falling during and after installation
• Paintable in any RAL color
• Included tile bridge support rails prevent ceiling tile sagging
• Quick installation with two fast screwing loudspeaker clamps
• Minimal built-in depth with uncompromised acoustical performance
• Loudspeaker overload protection for a 24/7 failsafe operation
• Front panel selection of 16 ohm or 100V/70V operation allows for easy power adjustment without removing the loudspeaker from the ceiling or moving connection wires
• Enhanced cable management with incorporated strain relief and cable guidance along with provision for a cable gland
• In & Link connection with permanent pass through on the euroblock connector allows easy daisy chaining of multiple loudspeakers
• Two seismic safety tabs for connecting safety cables

Supplied Items

Unpack the contents and confirm the following items are included:

• Loudspeaker x 2
• Thin-edge grille x 2
• Tile rail x 4
• Tile rail spacer x 4
• Cutout template x 2
• Important safety instructions x 1

Loudspeaker wires and safety cables are not included.

Installation Instructions

[CAUTION]: Biamp is not responsible for damages resulting from the negligent installation of any loudspeaker.

[WARNING]: Make sure that the mounting structure is capable of safely supporting the loudspeaker's weight.

Step 1: Mark Mounting Hole

Use the cutout template to mark the mounting hole.

[Description of image: A circular cutout template is shown being placed on a ceiling surface.]

Step 2: Cut Mounting Hole

Cut the mounting hole. Ensure there are no cables or other obstructions behind the mounting panel to avoid damaging power cables or other infrastructure.

[Description of image: A hand is shown using a saw to cut a circular hole in a ceiling panel.]

Step 3: Install Tile Rails

Insert the two tile rails through the cut hole and place them on the ceiling surface near the opening. Insert the tile rail spacers in the hole and clip them onto the tile rails.

[Description of diagram: Shows two parallel tile rails positioned across a ceiling opening, with tile rail spacers being clipped onto them.]

Step 4: Open Connection Box

Open the connection box on the back of the loudspeaker and remove the euroblock connector.

[Description of image: The rear of the loudspeaker is shown with the connection box cover open, revealing the euroblock connector which is being removed.]

Step 5: Connect Speaker Wires

Pull the loudspeaker wires through the mounting hole and connect them to the euroblock terminal.

[Description of image: Two diagrams show wire connections to the euroblock terminal. The left shows a single cable connection with red and black wires. The right shows a daisy-chained connection with multiple wires. A note indicates to use wire ferrules when stranded wire is used.]

Step 6: Remove Grille

Remove the grille from the loudspeaker. The grille is connected to the loudspeaker frame with a detachable wire for installer convenience and to serve as a grille safety restraint.

[Description of image: Shows the grille being gently pulled away from the loudspeaker body, with a wire still connecting them.]

Step 7: Secure Mounting Clamps

Turn the mounting clamps inwards (a) and tighten the screws slightly to secure them in the inward position (b).

[Description of image: Close-up views show the mounting clamps being rotated inwards and their screws tightened.]

Step 8: Reconnect and Close Box

Insert the euroblock connector back into the connection box on the back of the loudspeaker and close the cover. This cover acts as a strain relief plate for the cable and retainer for the euroblock connector. Use the knockout (a) of 22mm (0.87 inch) on the cover if the installation requires the use of a cable gland (b).

[Description of image: Shows the euroblock connector being reinserted into the connection box. A detail highlights the knockout opening (a) on the cover, suitable for a cable gland (b). A warning states to only use a non-conductive cable gland.]

Step 9: Insert and Secure Loudspeaker

Insert the loudspeaker into the hole and rotate the mounting clamp screws outwards to secure the speaker in place. Align the clamps with the tile rails and do not overtighten the mounting clamp screws.

[Description of image: Shows the loudspeaker being placed into the ceiling opening, with screws on the mounting clamps being turned outwards to engage with the tile rails.]

Step 10: Attach Safety Cable

Attach a safety cable to one or both provided seismic safety tabs to secure the back can to the building structure.

[WARNING]: Follow applicable building regulations when installing this loudspeaker. Otherwise, the unit could fall, resulting in personal injury or death.

[WARNING]: Install the safety cable with as little slack as possible. If the safety cable is too long, it may snap from excessive strain if the loudspeaker falls.

[Description of image: Shows a safety cable being attached to a seismic safety tab on the rear of the loudspeaker's back can.]

Step 11: Set Power Selector

Set the power selector on the front of the loudspeaker to the required position. The selector switch allows for power adjustment without requiring ceiling access.

[WARNING]: Set the power selector prior to applying audio and only change the setting while the audio amplifier is shut off.

[CAUTION]: The 16 ohm setting is not compatible with 70 volt or 100 volt line amplifiers.

[CAUTION]: The highest 70 volt power setting is not compatible with 100 volt line amplifiers, only with 70 volt line amplifiers.

Step 12: Install Grille

Install the grille on the loudspeaker. The grille is held in place by magnets. The grille may be painted to match decor. See the painting instructions on page 6.

[Description of image: Shows the magnetic grille being attached to the front of the installed loudspeaker.]

Dimensions

CM20DTS Dimensions

[Description of diagram: Front view of CM20DTS showing overall diameter A and cutout diameter B. Side view showing depth C and overall depth D.]

CM30DTD Dimensions

[Description of diagram: Front view of CM30DTD showing overall diameter A and cutout diameter B. Side view showing depth C and overall depth D.]

CM60DTD Dimensions

[Description of diagram: Front view of CM60DTD showing overall diameter A and cutout diameter B. Side view showing depth C and overall depth D.]

Tile Rail and Tile Spacer Dimensions

[Description of diagram: Shows an assembly of tile rails and spacers for ceiling mounting. Individual components are labeled 1 (tile rail) and 2 (tile spacer). Dimensions A, B, and C are indicated.]

Painting Instructions

The grille may be painted to match room decor. Remove the scrim material (cloth) prior to painting.

1. Purchase a citrus-based label/adhesive remover spray (e.g., PRF Label Off®, Goo Gone® or similar).
2. Pull the grille away from the cabinet. Do not bend the grille.
3. Gently pry the logo from the grille using a non-metallic tool, or fully mask the logo. Use a sharp knife to trim the masking material close to the edges of the masked areas.
4. Remove the grille cloth (scrim material) by spraying all of the fabric with the adhesive remover.
5. Wait a few minutes to allow the fabric to fully absorb the spray.
6. Carefully peel off the grille cloth, taking care not to rip or stretch the fabric.
7. Once the cloth and logo have been removed, some glue residue may remain on the grille. If so, apply additional adhesive remover to remove the glue.
8. Thoroughly clean and degrease the grille before painting. Do not use a solvent (see Cautions below).
9. Paint the grille with several light coats of spray paint. Do not clog the grille perforations with paint.
10. Allow the paint to fully dry and cure.
11. Reattach the grille cloth. Use a light coat of simple contact adhesive. Avoid clogging the grille perforations with any adhesive.
12. Press and smooth the cloth on the grille.
13. Reattach the logo if required.
14. Attach the grille to the back can per the installation instructions.

[CAUTION]: NEVER use abrasives, gasoline, kerosene, acetone, methyl ethyl ketone (MEK), paint thinner, harsh detergents, or other chemicals on the loudspeaker. These chemicals and agents may permanently damage the finish. Some are also toxic and highly flammable.

[IMPORTANT]: Do not bend or damage the grille on removal or reinstallation.

[IMPORTANT]: Blocking the grille holes with paint or getting any paint on the drivers or internal parts will affect loudspeaker performance and void the warranty.

Contact Us

Email: support@biamp.com

Web: support.biamp.com

Warranty: biamp.com/legal/warranty-information

Safety & Compliance: biamp.com/compliance

Biamp Systems

A: 9300 S.W. Gemini Drive Beaverton, OR 97008 USA

W: www.biamp.com