SKF-518
2-Way Bass Reflex Front Speakers
8 cm Cone Woofer
2.5 cm Balanced Dome Tweeter
Magnetically Shielded

SKC-518C
2-Way Bass Reflex Center Speaker
8 cm Cone Woofer
2.5 cm Balanced Dome Tweeter
Magnetically Shielded

SKM-518S
Full-Range Bass Reflex Surround Speakers
8 cm Cone