The 24W white LC4-UC24E Ceiling Loudspeaker from Bosch can be used for a wide variety of ceiling environments. They provide speech and music in indoor public address applications. The CosCone driver technology, used in this range, delivers outstanding sound quality from a small sized unit. It ensures a wide and equal spread of all octave frequencies and eliminates high-frequency beaming.

Fewer loudspeakers are needed to cover a given area, and the noticeable fading that can occur as a listener walks from one loudspeaker to another area is eliminated. It is a light and compact unit with an unobtrusive, neutral designed front grille.

The 24W Ceiling Loudspeaker range comes with the same wide opening angle, ensuring a wide and equal spread of the important frequency octaves for speech intelligibility and music clarity. The LC4 range is installation friendly. A cutting template is supplied with each unit, and the loudspeaker is secured in ceilings up to 2” (50mm) thick using 2 integral screw driven clamps.

Power tapping on both 70V and 100V allows selection of full-power, half-power, quarter-power, eight-power radiation, and 8 Ω. A selector at the front of the frame simplifies the required selection of the power setting. The loudspeaker grille, standard supplied, can be secured to the loudspeaker unit with a quick bayonet fitting after installation of the loudspeaker into the ceiling.

The LC4 range includes a back-box and metal fire-dome. The included back-box (LC4-CBB) protects the rear of the loudspeaker from dust, falling objects, makes the unit vermin proof, and also prevents sound traveling via the ceiling cavity to adjacent areas. The back-box is assembled with the loudspeaker by means of a snap-in construction and has knock-out holes for 2 grommets 0.4” (11.5mm) and for 2 cable glands 0.8” (20.5mm) aside and on the top.

You can easily install the individual loudspeakers as well as loudspeakers / fire-dome combinations. The metal fire-dome (LC4-MFD) mounting is fixed in the ceiling prior to the ceiling speaker mounting. The fire-dome is provided with a safety cord allowing the installer to temporarily hang the loudspeaker in the fire-dome, while connecting.

Both the loudspeaker and back-box have provision for mounting the line/supervision board (sold separately). The loudspeaker has a provision also for adding a capacitor in case the loudspeaker is used in systems with DC supervision.

It is designed to withstand operating at the rated power for 100 hours in accordance with IEC 268-5 PHC (Power Handling Capacity) standards. Bosch has also developed the SAFE (Simulated Acoustical Feedback Exposure) test to demonstrate that the speakers can withstand 2 times their rated power for short durations.

This ensures extra reliability under extreme conditions, leading to great customer satisfaction, long operating life, and less chance of failure or performance deterioration.

Innovative CosCone full range driver

Good speech and music reproduction

Unrivalled opening angle for all octave frequencies

Paintable grille

EN 54-24 and BS5839 compliant

Related Questions and Answers

Q: 1. How does it function the sound in the room ?

A: The speaker is an economic flush-mount ceiling loudspeaker for for general purpose applications. This full range loudspeaker is suitable for both speech and music reproduction in shops, department stores, schools, offices, sports halls, hotels and restaurants

Q: 2. Does this product come with a pendant mount kit?

A: The Bose Professional FreeSpace FS4CE In-Ceiling 4.5" 200W Passive Loudspeaker (Pair, White) comes with mounting hardware for in-ceiling installation, as this is an in-ceiling speaker, not a pendant speaker.

Q: 3. Does this come in a 1 speaker option?

A: No, these speakers are offered in pairs only.

Q: 4. The Bosch DIVAR 7000 comes preinstalled with certain softwares,what other software do I need to add for my system to run efficiently?Then to manage the excess number of the cameras that are not able to be viewed due to lack of the software,what type of single software would you one recommend that is all in one to accommodate the rest of theses features?

A: Please e-mail us: askbh@bandh.com

Q: 5. How would these be in a 700sq movie viewing room?

A: A pair or two of the JBL SCS 12 Two-Way Spatially Cued Cinema Ceiling Passive Surround Loudspeaker BH #JBSCS12 would be thunderous in the small space you have described.

Q: 6. What is the wattage of this speaker?

A: The Bosch LBC 3484/00 Horn Loudspeaker is rated at an output of 50W with a peak output specification of 75W. The transformer tap settings feature three (3) options: 50W, 25W, or 12.5W.

Q: 7. If I install 6 of these speakers in a restaurant, which amplifier will go best with it?

A: We have a lot of compatible models. The JBL CSA 180Z Audio Amplifier would be ideal. https://www.bhphotovideo.com/c/product/1070952-REG/jbl_csa180z_1x80w_amplifier_funnels_70_100v.html

Q: 8. Do I need to purchase an activation license for this recorder to display camera video on my monitor

A: You do not need to purchase any licenses. This unit will be able to decode either 1 HD camera up to 1920x1080 resolution or up to 4 standard definition cameras and the user interface can be configured to view in a quad mode.

Q: 9. What ceiling mounting accessories are recommended for this product?

A: According to Page 03 & 04 in the Installation Manual for the JBL CONTROL 18C/T, it comes with a C-Bracket that is compatible with most ceiling material. A tile rail can be used with tiled ceilings. There is also the JBL MTC-47MR Mud-Ring Bracket, available separately as BH #JBMTC47MR that can be used in the plaster for new ceiling constructions. You can find the manual from the 'Downloads' tab on the JBL product page for the CONTRL 18C/T, linked here: https://jblpro.com/en-US/products/control-18c-t

Q: 10. Is this sold as a Pair of speakers or is it only 1 speaker?

A: It is sold as a single speaker.