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Super Tweeter. Dispersion make much difference? Also, preference?

#21
The D250 being able to reach lower should be a better match for your 15's, just choose a horn that can function effectively down to 1khz. There isn't much if any useful content from a bass above 6 or 8 khz anyway. Could cross them around 1khz and not have any holes in the sound off axis.

I've had pretty good luck with plastic horns but I don't abuse my equipment. I did have one crack in a vocal wedge. It does make me a little nervous sometimes knowing there's a driver hanging out on the back end of a plastic horn though, so I'm a little more careful with those cabs. Aluminum does make more sense to me for road worthy gear. At least for piece of mind. Thousands of cabs have plastic horns and do OK though.
 
#22
will33 said:
The D250 being able to reach lower should be a better match for your 15's, just choose a horn that can function effectively down to 1khz. There isn't much if any useful content from a bass above 6 or 8 khz anyway
Click to expand...

I mostly agree, but I'm a doubler and for upright bass, I kinda like a little 'air' up above 6-8k...adds some nice fingernoise and sparkle to the upright, IMO&YMMV, of course :)
 
#24
dukeorock said:
I mostly agree, but I'm a doubler and for upright bass, I kinda like a little 'air' up above 6-8k...adds some nice fingernoise and sparkle to the upright, IMO&YMMV, of course :)
Click to expand...

Good stuff to consider. I've never really put together a cab with upright in mind. I know most want a bit of an attenuated, or at least not big low end. Some have said they like the high tweeter stuff, others not so much.
 
#25
will33 said:
Good stuff to consider. I've never really put together a cab with upright in mind. I know most want a bit of an attenuated, or at least not big low end. Some have said they like the high tweeter stuff, others not so much.
Click to expand...

I used to think I hated tweeters and horns until I started playing the better cabs like fEARfuls, AudioKinesis, etc...they're just a completely different thing. Lots of jazz UB players like an attenuated low end because the UB has so much built in low end as it is. I'm more of a rock and roll and blues kinda player, so I'd rather have way too much of every frequency and cut it back as the room dictates. Playing upright loud forces one to learn the beauty of subtractive eq :)
 
#26
Have decided on the D220Ti & HM25-25. Don't think I'm losing anything going with the D220Ti over the D250-X. Paying $12 more but gaining a whole bunch of top end. Looks like the 2kHz crossover on the D220Ti matches up tremendously well with the 3015s response curve. And doing the HM25-25 just because it's aluminum, I'll be able to sleep better at night.

Pretty psyched.
 
#27
billfitzmaurice said:
Go with the widest possible horizontal dispersion. Anything sent towards either the floor or ceiling is wasted.
Click to expand...

True if you wanna project into the audience.
But I think a lot of people will agree with me that when you play on a small stage and your cab can not be put on ear level you'll miss some important information.
Thats the reason I use an 8"+1.3/4" coaxial driver with broad dispersion in my 2x10 cabinet. Everyone who played through it was amazed how good it sounds under almost every angle. Even when you stand in front of it (cab on floor level) you'll still hear lots of detail.

But as far as a single "super" tweeter goes, I don't like most of these designs, the crossover-points are allways way to high to keep dispersion ok at the important frequencies for the bassguitar. These designs also have big phase issues. Not my ticket to great sound.
 
#28
Arjank said:
True if you wanna project into the audience.
But I think a lot of people will agree with me that when you play on a small stage and your cab can not be put on ear level you'll miss some important information.
Thats the reason I use an 8"+1.3/4" coaxial driver with broad dispersion in my 2x10 cabinet. Everyone who played through it was amazed how good it sounds under almost every angle. Even when you stand in front of it you'll still hear lots of detail.

But as far as a single "super" tweeter goes, I don't like most of these designs, the crossover-points are allways way to high to keep dispersion ok at the important frequencies for the bassguitar. These designs also have big phase issues. Not my ticket to great sound.
Click to expand...
Guessing the 2 x 15 cabinet with the HF driver/horn will stand ~42" or so, maybe as tall as 45". I think it's likely I'll be able to hear O.K. with the 60 degrees vertical. And if I still can't hear well enough, I can always build a box for the cab to sit on top of If needed.

Not sure on the phase issues portion.
 

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