The Power Dynamics Powerline A100W Set is a comprehensive audio solution featuring a white built-in amplifier and four black ceiling speakers designed for integrated home audio installations. This system delivers reliable performance with a total power output of 100 watts RMS, distributed across four speaker channels for balanced room coverage. The white in-wall amplifier measures 215 mm wide by 145 mm high by 65 mm deep, designed for flush mounting in standard wall cavities with secure screw terminals for stable wiring connections. Each black ceiling speaker features a 6.5 inch (16.5 cm) polypropylene woofer and 1 inch (2.5 cm) soft dome tweeter, housed in a compact enclosure measuring 210 mm in diameter with a mounting depth of 85 mm. The speakers incorporate swivel tweeters for directional sound adjustment and paintable grilles to match room decor. The amplifier provides four independent channels with individual volume control, accepting standard speaker wire connections and supporting impedance from 4 to 8 ohms. Frequency response ranges from 60 Hz to 20,000 Hz with a signal-to-noise ratio exceeding 80 dB for clear audio reproduction. The system operates on standard 230 V AC power with automatic overload protection circuitry. All components feature durable ABS construction with UV-resistant finishes suitable for long-term installation. The ceiling speakers include integrated mounting brackets with adjustable tension clamps for secure installation in various ceiling thicknesses from 10 mm to 25 mm. This audio set is engineered for distributed audio applications in residential environments, providing consistent sound quality across multiple rooms with minimal visual intrusion. The white amplifier faceplate and black speaker grilles maintain a discreet appearance while delivering functional audio performance for background music and entertainment purposes.