Audibax CM408-BT4 - Bluetooth Ceiling Speakers 5” (pair) 60 W RMS with magnetic grille

Audibax CM408-BT4 - Bluetooth Ceiling Speakers 5” (pair) 60 W RMS with magnetic grille

The Audibax CM408-BT4 are a set of in-ceiling speakers designed for simple and clean indoor sound reinforcement. They are sold in pairs (1 active speaker with amplification and Bluetooth connectivity + 1 passive speaker), with a 2-way configuration based on a 5” woofer and a 13 mm tweeter . Their magnetic metal grille simplifies installation and provides a minimalist finish in drywall or modular ceilings. They deliver 2 x 30 W RMS (60 W total), 88 dB SPL , and an 80 Hz–20 kHz frequency response for clear background music and announcements in shops, restaurants, offices, or classrooms. The active speaker is powered by 12 V DC and includes a password-free Bluetooth receiver for pairing and playback from a mobile phone, tablet, or computer.

Main features

• Active + passive pair for recessed ceiling installation.
• 2-way: 5” woofer + 13mm tweeter for balanced bass and treble coverage.
• Power: 2 × 30 W RMS (60 W total per pair).
• Acoustic specifications: SPL 88 dB (1 W/1 m) and frequency response 80 Hz–20 kHz.
• Connectivity: Bluetooth with passwordless pairing .
• Magnetic grid and ABS ring; dog-ear fixing for quick assembly.
• Installation dimensions: Outer diameter 170 mm, cutout diameter 140 mm, depth 75 mm .
• Impedance: 8 Ω (passive to active connection via speaker wire).
• Color: white, discreet aesthetic for integration into interiors.

Product benefits

• Simplified installation: small cut (140 mm), shallow depth (75 mm) and magnetic grid that speeds up placement and maintenance.
• All-in-one for BGM: amplification built into the active speaker and wireless streaming without additional accessories.
• Professional finish: ABS ring and low-profile metal grille that goes unnoticed in public rooms.
• Clear sound in small and medium-sized spaces: 2 x 30 W stereo output and wide response for background music and speeches.
• Cost and wiring kept low: simply supply 12V power to the active component and a couple of conductors to the passive component.

Use cases

• Food service and hospitality: cafes, bars, hotels and common rooms with background music.
• Retail and showrooms: background music and courtesy messages without complex wiring.
• Offices and educational centers: reception, waiting rooms, classrooms, libraries and corridors.
• Housing and residential spaces: kitchens, living rooms, passageways and covered terraces (interior).

Installation and connection

1. Mark and make the 140 mm cut in the false ceiling; check 75 mm free depth.
2. Connect the passive speaker to the output of the active speaker , respecting polarity (+/−).
3. Power the active speaker with 12V DC (adapter included according to distributor pack).
4. Insert each box into the slot, tighten the dog-ears , and place the magnetic grid .
5. Pair via Bluetooth by searching for “CM Series” on your device. No password required.

Frequently Asked Questions

Can two pairs be used simultaneously via Bluetooth?
Due to Bluetooth limitations, it's not natively possible to synchronize the same source with two pairs to play simultaneously. For multi-room setups, use external solutions (matrix speakers, multipoint Bluetooth transmitters, or cabling).

Can I add more passive speakers to the active one?
The official manual documents the use of one passive unit connected to the active unit. Some distributors mention combinations of one active unit and three passive units , but this is not specified by the manufacturer in the user guide. If you need to expand the number of points, it is recommended to use more zones/pairs or a system with a dedicated amplifier.

Does it include a wired auxiliary input?
The manufacturer's documentation focuses on Bluetooth connectivity. Check your retailer's package contents if you require a physical AUX input on the model you purchased.

Are they suitable for outdoor use?
No. They are designed for indoor use .

Project description

Pair of 2-way recessed ceiling speakers (5” woofer + 13 mm tweeter); active + passive configuration; power 2 × 30 W RMS ; 8 Ω ; SPL 88 dB (1 W/1 m) ; 80 Hz–20 kHz ; Bluetooth (password-free pairing); active power supply 12 V DC ; outer diameter 170 mm ; cutout diameter 140 mm ; depth 75 mm ; magnetic metal grille; ABS ring; white color; dog-ear mounting; for indoor use.