The 4590 is a 2" format driver and 2370 is 1" format horn. Jbl has a 2380 (and many others) for 2"

The 4590 could be used quite suitibly on the hi pass of 1k6 Eminence xo. You may find crossing over with something a little lower better suited also.

The 4590 is also a coax driver and either needs you to cross the mid to the high at 6300hz or there is a 4590P model which includes the a BMS passive xo at 6300hz.

There is no rising responce with this driver above 15K. The driver in a horn will gently roll out around 17K and could even benefit from having a bypass cap in the attenuating circuit.

The BMS drivers hold a line past 16K better than any other driver Ive measured.

Bill

OOps! Keep everything the same in my message with the exception of change 4590 to H4540ND. That’s what I get for typing fast. Hopefully now my question will make sense! I have a small room and fear that a 2" exit driver will overpower it.

Thanks for trying to make sense of my gibberish and TIA for answering my question.

Dave

P.S.: Beautiful horns on your web site!

4540 makes perfect sense. You could use this with a 1600hx xo. ITs pushing the limits of the driver si it depends on the the loudness you pland to listen to. If your only going to run a few little watts through it, milliwatts most of the time for home listening then you have no problems. If you need to crank this up for your back yard then your going to need a 4th order xo at 1600. For hom Hi-Fi your going to be fine.

Still, your going to get roll off out of the horn and this is not hot above 15k. My testing on this driver show near flat with 14db attenuation with .68uF bypass cap. This is in a 12" horn. These are my favorite BMS drivers. by far the smoothest sounding. they just have limitations and you have to cross them higher.

If you have 2370 horns then that's cool. These would also be well served in the Eminence horn Wayne sells with his kits. Its a little small horn and is much less expensive if your crossing over at 1600.

Bill

Thanks for the respose. Although I generally don't play very loud and my speakers never get used for backyard parties, some of my classical favorits have quite a lot of dynamic range. These peaks are usually short in duration but they can suck a lot of power. The nice thing about the 4540 is that it is cheap enough to experiment with.

I'm sure that the Peavy horn goes low enough to cover a 16K crossover. I had read that the JBL has a little better dipersion on the high end. Weather that's worth the large differnce in price is another thing.

Dave

Bill was talking about the crossover point at the lower limits. What his saying is the Peavy CH3 horn doens't go below 1KHz so well and is best used a little higher than this. But the larger JBL 2370 can be used from a much lower frequency, ~800Hz.

Adrian

I think xover in the Pi Corner horns is around 800Hz.

I see no problems in crossing at 400Hz, only benefits. Bill Martinelli seems to really like the sound of the 4592 too, so the two should make a great sounding pair together.