The new J series is a technologically advanced range of products that improves on the performance of the previous Jolly line. The new J series is a competitive, value for money range of speakers.
The range is based on the development of three new high efficiency class-D amplifiers with power specifications of 350 + 100W for the J 15A & J 12A, 200 + 50W for the J 8A and 80 + 40W for the J 5A.

These amplifiers have been designed ‘from the ground up’ in FBT?s R&D laboratories.
The largest amplifier model that equips the J 15A and J 12A has a switch mode power supply as well as a digital signal processor with 4 pre-sets.