In addition to these SP-L speakers Sansui also made the SP-L500 ( which I have ) the SP-L300, SP-L200 and I also believe the SP-L150. The SP-L500 are 3 way speakers with a 12" cone type Woofer, 6 1/2" cone type Midrange and 2 1/4 horn type Tweeter. The build quality is very heavy and they sound...