JBL 4312 - JBL 4312 was a respected nearfeild monitor in it's time.. mebbe worth a look in the free-ad's?
JBL 4312 Control Monitors - "Killer", With Stands - SOLD – Holt Hill Audio
Vintage HiFi Club JBL 4312 mkII Control Monitor - Vintage HiFi Club
JBL 4312G | 12-inch (300mm) 3-way Studio Monitor Bookshelf Loudspeaker
JBL 4312 Monitor Loudspeaker System Manual | HiFi Engine
JBL 4312 // Studio Control Monitor / Custom Grilles – AURAL HiFi
JBL 4312 Studio Monitor | Stereo, Home Cinema, Headphones Components
JBL 4312-MK2 4312B- MK2 crossovers NEW (PAIR) | eBay
JBL 4312G 3-Way Studio Monitors (pair) – Upscale Audio
Was lucky enough to get these JBL 4312 for 125.00. No grill covers and really nasty smelling and dirty (smokers house). They cleaned up and stopped smelling after a week in my
JBL 4312 ,Monitor Loudspeakers L100 4(contact info removed) – Walnut for Sale in Scottsdale, AZ - OfferUp
JBL 4312 Specifications
Vintage pair of JBL 4312 Control Monitor speakers | Reverb
Just picked up a set of super clean JBL 4312 Control Monitors to replace my Marantz Imperial 7s. The Sansui 881 powers them quite well! : r/vintageaudio
Harman Introduces JBL 4312G Studio Monitor at CES 2019 | audioXpress