The JBL L100 Floor-standing speaker was introduced to consumers in 1970 at the annual Consumer Electronics Show. This flagship of JBL's consumer product line quickly became not only their most successful product to date but quite possibly the most successful loudspeaker of the decade.
The JBL L100 is the adaptation of their professional 4310 model for consumer use. The L100 speakers feature a 5 inch squawker, a 12 inch woofer, and a high region diffusion-type tweeter. The cabinet of the L100 was walnut, and the front grill was available in one of three colors: brown, orange, and blue. The L100 was JBL's first consumer product and remains a favorite of collectors. Online reviewers on Audio Review rate the JBL L100 with 5 out of 5 stars, stating it is 42 pounds of true sound, an absolute classic, and one of the best speakers of all time.

The JBL L250 was JBL's best-selling speaker all through the 1980s, and this speaker is still in limited production. The JBL L250 was the embodiment of designer Greg Timbers' ultimate fine-tuning on a 4-way speaker system, and it remains his favorite. Introduced to consumers in 1982, the JBL L250 remained flat to 30 Hz and so functioned quite well without the need for a subwoofer. The concurrent marketing of the B460 subwoofer as the JBL L250's ultimate accessory, however, made this the first JBL speaker system capable of producing frequencies outside human hearing on both ends. Perhaps the best endorsement of this system is that it is the speaker most chosen by JBL's senior staff members.
Reviewers at Audio Karma state the L250 series is the best JBL speaker ever produced: love at first sight and sound. They also praise the JBL L250's timeless styling and the fact that they do not require a great deal of floor space. Other online reviewers commend the L250's detailed sound, stating they are clean and clear and produce a deeper and fuller bass.

The  JBL 4333B is a 3-way speaker system with the addition of the improved 2405 tweeter. This tweeter features a diffraction horn property and is capable of reproducing in excess of 20 kHz. The JBL 4333B cabinet was originally available in one of two finishes: gray and walnut.
Audio Heritage reviewers found that no matter the type of music listened to most, the JBL 4333B has deeper bass and clearer highs than other models. They agree, however, that this speaker system can overpower a small room, so setting it up properly is a must.

The JBL L40 was JBL's first bookshelf model loudspeaker that was produced in the late 1970s. The JBL L40 features two-way speakers, a 10-inch woofer, and 1-inch dome tweeter. The original cabinets of the L40s were maple, and the front grills black.
Audio Karma reviewers praise the overall dynamics of the JBL L40, stating they have a full, deep bass, flat midbass, and nice highs. One reviewer felt the JBL L40 speakers "color" the sound less than other vintage speakers. This early model consumer speaker remains a favorite of vintage enthusiasts.