The KPT-535/4-B is an enhanced version of the KPT-535-T with a KPT-415-LF quad 15-inch direct-radiating bass unit for greater output in large auditoriums. With higher output it still retains a shallow 24-inch depth to accommodate limited behind the screen areas.

Its three-way design with its bi-amp configuration using a passive crossover system also reduces wire runs and simplifies setup. Dialogue is flawlessly reproduced with a KPT-402-MF Tractrix® Horn fronting a K-1133 two-inch exit titanium compression driver, and a KPT-Grand-HF-T Tractrix® Horn ensures smooth effortless treble reproduction.