Austin Stereo Service - A pair of classic JBL 4311 control monitor. If you're listening to a 70's American rock album, chances are it was mixed on speakers just like these. | Facebook
Pair of JBL Vintage Model 4311 Control Monitor Speakers for Sale in New York, NY - OfferUp
Enceintes JBL 4311 Control Monitor WX 2213 LE5-2 LE25 Studio
JBL 4311 Control Monitor I got from an estate sale yesterday. : r/vintageaudio