Selenium 15PW3-SLF 15-Inch Driver An outstanding 15" for 2 way and 3 way PA enclosures. The 15PW3 is also a reliable upgrade with clean, warm low end and a smooth rise into the midrange. As a bass guitar speaker, the tight low end and clean with a crisp upper midrange. An outstanding 15" for 2 way and 3 way PA enclosures. The 15PW3 is also a reliable upgrade with clean, warm low end and a smooth rise into the midrange. As a bass guitar speaker, the tight low end and clean with a crisp upper midrange. An outstanding 15" for 2 way and 3 way PA enclosures. The 15PW3 is also a reliable upgrade with clean, warm low end and a smooth rise into the midrange. As a bass guitar speaker, the tight low end and clean with a crisp upper midrange. An outstanding 15" for 2 way and 3 way PA enclosures. The 15PW3 is also a reliable upgrade with clean, warm low end and a smooth rise into the midrange. As a bass guitar speaker, the tight low end and clean with a crisp upper midrange.