BMB CSR-500S(SE) Karaoke Speaker 

The BMB CSR-500S (SE) belongs to BMB’s CSR series—a line of entry-level karaoke speakers tailored for smooth voice integration and solid musical backing. These speakers were discontinued years ago, making them more commonly found in second-hand markets

System Type    2-Way, 3-Speaker, Bass-Reflex
Woofer    16 cm (approx. 6.5″) paper cone × 2
Tweeter    8 cm (approx. 3″) paper cone × 1
Max Input Power    280 W
Rated Input Power    130 W
Impedance    8 Ω
Dimensions (mm)    502 L × 274 W × 250 H
Weight    ~9.8 kg per speaker