BST AP1208 - 2-way 20W RMS ceiling speaker

BST AP1208 – 2-way 20W RMS ceiling speaker

The BST AP1208 in-ceiling speaker offers a discreet and efficient solution for indoor PA systems. Equipped with a 5.25″ (130 mm) woofer and a 1.5″ dome tweeter, it clearly reproduces bass, voices, and treble, covering a frequency range of 110 Hz to 15 kHz. Its 100 V design allows 20 W, 10 W, or 5 W to be selected using simple cable jumpers, adapting to the power required in each area. Installation is ultra-fast thanks to its three spring-loaded clips, and its magnetic metal grille and fabric-protected paper cone ensure a professional and durable finish. With a front diameter of 209 mm and a mounting depth of only 68 mm, the BST AP1208 is ideal for installations in offices, retail stores, classrooms, and waiting rooms.

Main features

• Quick installation using three spring clips
• 5.25″ (130 mm) paper cone protected with fabric
• 1.5″ dome tweeter for crisp highs
• Removable metal grille with magnetic fixing
• Line voltages 100 V: 20 W / 10 W / 5 W selectable by cable
• Frequency range: 110 Hz – 15 kHz
• Sensitivity: 88 dB SPL @ 1 W/1 m
• Mounting diameter: 170 mm; external diameter: 209 mm; depth: 68 mm; weight: 0.8 kg
• For indoor use only

Product benefits

• Express installation: Spring clips eliminate the need for hardware, reducing assembly times.
• Adaptable to each space: Three power levels to adjust the volume according to the room acoustics.
• Sound quality: 2-way system with woofer and tweeter optimizes voice and background music reproduction.
• Discreet Design: Visible screwless magnetic grille and low-profile housing integrate the speaker into any ceiling.
• Durability: Moisture and dust resistant materials ensure a long service life.

Use cases

• Soundproofing of offices, conference rooms and classrooms.
• Commercial environments such as stores, restaurants and supermarkets.
• Alert systems and background music in hotels and waiting areas.
• Clinical and healthcare environments where discreet and reliable audio is required.

Frequently Asked Questions

• How do you change the power?
  Remove the magnetic grid and move the cable jumper to the desired tap (20W/10W/5W) on the inner plate.
• What frequency cutoff is recommended?
  It is usually installed with a high-pass filter at 100 Hz to avoid bass overload and improve intelligibility.
• Is it compatible with 70V lines?
  No, it is designed exclusively for 100V.
• Can I use it on shelves or walls?
  Its flush-mount design and metal housing make it optimal for in-ceiling applications only; for other applications, see in-wall speakers.

Description for projects

2-way recessed speaker for 100 V line: 5.25″ woofer + 1.5″ tweeter, 20/10/5 W, installation with 3 spring clips, magnetic grille, 110 Hz–15 kHz, 88 dB, recessed diameter 170 mm, depth 68 mm.