This item is the JBL 4310, a studio monitor speaker system released by JBL in the early 1970s. It is a masterpiece from the early 70s series, a time when JBL began focusing heavily on producing professional studio monitors. The 431X series, including this model, was built with the extensive knowledge gained from JBL’s previous work with theater speakers, and represents a well-crafted medium-sized near-field monitor.
Among the 431X series, the 4310 is the only model that features all-Alnico magnets, making it especially rare. It also served as the prototype for later models in the 43XX series, as well as the famous L100 Century, making this a highly collectible and historically significant piece.
Excellent Condition
This item is in outstanding condition, including the cabinet and all speaker units.
It features the early all-Alnico components: 123A-1, LE5-2, and LE20-1.
The serial numbers of each unit are very close, ensuring well-balanced sound quality and consistent output.
▼ For more information, a detailed review of this model can be found on the following site:
JBL Monitor Speaker Analysis
