General
Rated load (music)	20 (40) W
100V adaptations	20 - 10 - 5 W
Frequency range	50 - 20.000 Hz
Sound pressure 1W/1m	91 dB
Speaker	2-way coaxial chassis Ø 165 mm
Nominal impedance	8 Ohm
Colour	White
External dimensions Ø, mounting depth (max.)	226, 70 mm
Mounting hole cutout	200 mm ± 5 mm

The ceiling and wall-mounted speaker RC-120C from RCS Audio-Systems is a 2-way coaxial speaker designed for use in sound systems with 100-volt technology. It is suitable for installation in ceilings or walls and is delivered in white. The coaxial chassis consists of a wideband woofer and an integrated tweeter, enabling a compact and uniform sound radiation. The construction is designed for secure mounting, with installation via a quick-tension clamp secured by tightening four screws. The removable perforated steel cover ensures a clean visual integration into building elements. The mounting frame and holding parts are made of high-quality plastic, ensuring stable fixation. The frame height is 2 mm, enabling a flush installation appearance. The speakers are also available in a damp-room version, making them suitable for use in environments with increased humidity.

Applications

The RC-120C is designed for indoor use, particularly in offices, waiting areas, schools, hospitals, or retail stores, where unobtrusive and uniform sound coverage is required. The 100-volt technology allows flexible control over long cable runs, enabling multiple speakers to be operated from a single amplifier. The damp-room version extends the application range to rooms such as kitchens, bathrooms, or sports halls, where increased humidity is present.

Functions and Equipment in Detail

The speaker features a 2-way coaxial chassis with a diameter of 165 mm. The integrated tweeter arrangement ensures precise and spatially balanced sound reproduction. The rated power handling is 20 W for music, with a peak power of 40 W possible. The adaptation options for 100-volt systems include power ratings of 20, 10, and 5 W, enabling flexible adjustment to different room sizes and sound requirements. The frequency response ranges from 50 Hz to 20,000 Hz, covering a broad tonal range. The sound pressure level is 91 dB at 1 W and 1 m distance, ensuring sufficient loudness for typical indoor spaces. The nominal impedance is 8 Ohm, ensuring compatibility with standard amplifiers and 100-volt systems.

Technology Explained Simply

The 100-volt technology enables the transmission of audio signals over long distances with minimal loss, as the signals are transmitted at a higher voltage. The speakers are equipped with a transformer that steps down the voltage to the level required by the speaker. The coaxial arrangement combines the woofer and tweeter in a common axis, enabling coherent sound radiation and improved directivity. The removable perforated steel cover facilitates maintenance and cleaning without having to remove the entire speaker.

Compatibility and Accessories

The RC-120C is designed for use in 100-volt sound systems and can be combined with other speakers from the same system. The adaptation options (20, 10, 5 W) allow flexible power adjustment according to room size and requirements. The damp-room version is available as an option and extends the application possibilities in humid environments.

Installation and Mounting

Installation is performed by inserting into a pre-drilled opening with a diameter of 200 mm ± 5 mm. The mounting frame is inserted into the opening and secured with four screws. The quick-tension clamp enables simple and secure fastening. The maximum installation depth is 70 mm, allowing installation in standard ceilings or walls. The external dimensions are Ø 226 mm, describing the size of the visible part. The construction is designed to be theft-resistant, providing additional security in public or commercial facilities.

Operational Advantages

The RC-120C offers an unobtrusive installation appearance with a frame height of only 2 mm, enabling a flat and clean integration into ceilings or walls. The 100-volt technology ensures flexible and reliable sound coverage over long distances. The coaxial arrangement ensures uniform sound radiation, and the removable perforated steel cover facilitates maintenance. The damp-room version extends the application range to humid rooms. The construction is designed for secure and theft-resistant mounting, supporting use in public facilities.