These are likely from the 1960s as JBL made these for many years. They have 10" active woofers coupled with a 10" passive radiator to achieve the bass of a 12" woofer, but also able to cover the midrange very well. The tweeters are LE20 model used in many speaker of that day. All drivers are working. I'm guessing a past owner had replaced the drivers in one of the cabinets with later model speakers with black cones. They are JBL with the proper model numbers, but I know they stopped making the Aquaplas coated cones at some point in the 80s. Crossovers are the LX4-2 which are very well regarded. The woofers have been refoamed very cleanly. No scratches or damage to cones and they sound perfect. Grills are original. The cabinets are about 9 of 10 and American Walnut veneer. They are clean on all sides. These were meant to be horizontal on book shelves but most stand them upright. The grill badges are original. Serial numbers are shown in the photos - a close match.
Type: 2 way, 3 driver loudspeaker system
Power Handling: 30W
Crossover Frequency: 2500Hz
Impedance: 8Ω
Bass Radiator: 1 x PR10
Bass: 1 x LE10A
Tweeter: 1 x LE20-1
Dimensions: 14" x 23.5" x 12"
Weight: 50lbs each
To come see and hear, call or text John @ 847-915-022 th r ee