
JBL 2-way Bookshelf Studio Monitor Loudspeaker User Guide

Package Contents

Specifications


Placement and Positioning

Basic Single-Wire Connection

Bi-Wire Connection


NOTE: For more information about various speaker-wire and connection options, contact your local JBL dealer.
Controls/Adjustments

NOTE: As with most speakers, the 4309 has transducers whose suspensions will take several weeks to “break in” and achieve optimum performance. During this period, the balance between woofer, and UHF trim level may change, so we recommend that you adjust the UHF controls accordingly.
© 2021 HARMAN International Industries, Incorporated. All rights reserved.
JBL and HDI (High Definition Imaging) are trademarks of HARMAN International Industries, Incorporated, registered in the United States and/or other countries. Teonex is a registered trademark of DuPont Tenjin Films. Features, specifications and appearance are subject to change without notice.



















