HF-30B,
30 mm (1.2") Dome Tweeter
This
tweeter is the king of all Tweets! It is currently the largest
car audio tweeter available. The neodymium magnet is 3 times the
size as the one used in the HF-25T. It produces the highest output
of power among all of the tweeters. The mounting hole is 50 mm,
so the increased performance you get is only by a 5 mm difference.
This tweeter is for very high performance 2, 3 or 4 way sound
systems. The suggested operating range is 2.5 to 20 KHz., and
the minimum crossover frequency is 2.3 KHz.