Takendirectly form EV\'s data sheet wich can easily be found free online;
Designed toaccuratly reproduce the complex wave forms generated by todays electronicinstruments, the BK-315 offers full range reproduction in an ultr-portablepackage. Exceptionally broad bandwidth allows accurate reproduction of extendedlow-frequency and high-end harmonics. Power capacity of 200 watts handles highlevel signals with no overload or distortion.
The high- frequency section ofthe BK-315 utilizes a die-cast 60 degree x 40 degree constant directivity horn,driven by a wide-bandwidth one inch throat, titanium diaphram driver. Thisdriver uses a unique, convex-drive Time Path phasing plug structure(patented)for smooth and extended high frequency performance to 30 Khz.