The Model 2231 low frequency loudspeaker provides The 2231 has a low-loss magnettc structure that weighs 13 accurate, solid low-
![JBL 2231 15in 380mm Low Frequency Transducer (1978) - About ProSound - Interesting stuff in the realms of sound, audio and stuff JBL 2231 15in 380mm Low Frequency Transducer (1978) - About ProSound - Interesting stuff in the realms of sound, audio and stuff](https://aboutprosound.com/wp-content/uploads/2022/09/JBL-2231-1978-Featured-Image-jbl-V2.jpg)
JBL 2231 15in 380mm Low Frequency Transducer (1978) - About ProSound - Interesting stuff in the realms of sound, audio and stuff
![Jbl 2231 A woofer pair clean REEDGE UPGRADED terminal firm asking price Photo #4459571 - US Audio Mart Jbl 2231 A woofer pair clean REEDGE UPGRADED terminal firm asking price Photo #4459571 - US Audio Mart](https://img.usaudiomart.com/uploads/large/4459571-jbl-2231-a-woofer-pair-clean-reedge-upgraded-terminal-firm-asking-price.jpg)