JBL 4320 Studio Monitor System (1972)
The JBL 4320 is a professional monitor loudspeaker system designed to reproduce the extended frequency and dynamic ranges of master recordings. It is equally well suited
for small auditoriums, theaters or other similar high quality sound reinforcement applications.
Link for PDF: JBL 4320 Studio Monitor System (1972)
https://aboutprosound.com/wp-content/uploads/2022/09/JBL-4320-Studio-Monitor-1972.pdf
