Ceiling Speaker BLOW WS-150 135 mm, 50 W, 8 Ω (model 30-712#)

BLOW WS-150 is a ceiling speaker with a 135 mm driver diameter, nominal impedance of 8 Ω and rated power of 50 W. It is engineered for in-ceiling audio installations where a compact form factor and basic, reliable acoustic performance are required. The design supports integration into multi-zone or single-room commercial and residential systems for background music, speech reproduction and public address applications.

Advantages

The speaker offers a compact installation size that fits standard ceiling cutouts while delivering consistent 50 W power handling for small to medium spaces. Its 135 mm driver provides balanced midrange and vocal clarity suitable for background music and announcements. The 8 Ω nominal impedance makes it compatible with a wide range of amplifiers and multi-channel audio systems. Mechanical elements are designed for straightforward mounting and stable in-ceiling placement.

Suitable for

• Background music in retail spaces, offices and restaurants
• Public address and paging systems in commercial environments
• Multi-zone audio installations in small to medium venues
• Single-room sound reinforcement for meeting rooms and classrooms

Key specifications

• Driver diameter: 135 mm
• Rated power: 50 W
• Nominal impedance: 8 Ω
• Mounting type: in-ceiling installation
• Acoustic role: background music and speech reproduction

How to use

Select an appropriate amplifier or audio matrix capable of driving an 8 Ω load and matching the speaker's rated power. Cut a ceiling opening compatible with the speaker's mounting dimensions and secure the unit according to mounting instructions to ensure stable placement. Connect speaker wiring observing correct polarity to maintain phase coherence in multi-speaker systems. Adjust system EQ and volume at the amplifier or processor to achieve desired background level and speech intelligibility.

Usage recommendations

For reliable long-term performance, avoid driving the speaker continuously at maximum power and use appropriate crossover and equalisation when integrating with subwoofers or other full-range drivers. Position multiple units evenly for uniform coverage and set amplifier output to provide headroom for transient peaks.