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Goldwood GT-400PB 1" Horn 1-3/8"-18 TPI
what is the mounting depth and what is the coverage? 90x60?
Mounting depth is about 10". 90X60. That coverage is expected at the crossover frequency. Above say--5-7 Hz all horns become more directional. The point where the horn fares into a (small round point) is where higher frequencies are reinforced. This horn will hold a 1-2 lb driver but above that, you will need wooden or wire support to keep it from cracking when dropped.
Date published: 2013-08-20
Which horn, GT-400PB or GT-500PB is better for sound freq 800Hz to 16KHz and can travel longest distance
Either one is equally suitable for the frequencies you indicated, and both would have similar performance. All other things being equal, I can't honestly say one would transmit further than the other. This kind of decision would typically come down to which one is a better fit, based on the physical area available in your cabinets.
Date published: 2011-05-29