The Sansui SP-X 9 is a vintage loudspeaker model produced by Sansui in the late 1970s and early 1980s. It features a 3-way speaker system, which typically includes a woofer, mid-range driver, and a tweeter. The cabinet design is often noted for its aesthetic appeal, combining wood finishes with a sturdy build. These speakers are appreciated for their sound quality, characterized by a warm bass response and clear mids and highs. The SP-X 9 can handle a decent amount of power and is compatible with a variety of audio receivers, making it a popular choice among audio enthusiasts looking to enhance their listening experience.