jbell's set of four tapped horns

[davygrvy]

Originally Posted by juxta

Whats wrong with the tuba 36?

The published response charts don't match real world results found by others.

[polviggen]

i've heard a titan 48 and that cab certainly went loud, i hope to compare it with my Jbell tapped horn soon.

i have the autotuba for in my car from billfitzmaurice too, can't really say a bad thing about it, sounds as promised, could go a little deeper though.

had the omni tallboy too (3 way with eminence 3015LF and alpha 8 MR for the mids in a horn + a tweeter) and that cab was a dissapointment in the lows.

[jbell]

I'd love to hear / see others measurements on a T48 vs this TH. (no one would believe me... or even this) http://www.prosoundshootout.com/Meas.../Titan800w.jpg
Typically tuba / titans are -13db at 40hz vs 100hz, where the TH is reasonably flat. This was huge for me, because I needed not just outdoors, but outdoors in the air (30' high) so I was running subs in full space. I understand Bill's philosophy on 'stepped response' aka, you don't need to be flat to 40. In my case, I felt I needed it, and the charts at the time led me to believe I could get what I needed from T36.

Here's a pic of the T36 chart in question. Just so everyone knows... this is clipped directly from BF's site at the time, and the hornresp was from bgavin, who has direct knowledge of the T36 IP... so this is not a reverse engineer from me or anything. I just want to make sure it's understood, I'm not the originator of either of these charts....

[polviggen]

what were the hornresp inputs on this, i'd like to see how it plays in a corner.

[jbell]

Hornresp inputs? ask BF or bruce.. and you won't get an answer. That's Bill's IP.

If you have the plans, reverse engineer as close as you can with the dimensions for whatever width you choose.

I cannot post any hornresp that I have done this with, without violating Bill's IP. (which I respect)

However, my opinion. V-plated in a corner is the best place for these.

Advantage to the TH? it doesn't need a corner.

[littlemike]

Originally Posted by jbell

Hornresp inputs? ask BF or bruce.. and you won't get an answer. That's Bill's IP.

If you have the plans, reverse engineer as close as you can with the dimensions for whatever width you choose.

I cannot post any hornresp that I have done this with, without violating Bill's IP. (which I respect)

However, my opinion. V-plated in a corner is the best place for these.

Advantage to the TH? it doesn't need a corner.

Another advantage to Jim's TH? It is a FAR easier build.

[polviggen]

yup, really easy, i never built a cab before and it came out just fine

din't know hornresp inputs was ip, sorry for asking about that.

[Thijs666]

Originally Posted by polviggen

i've heard a titan 48 and that cab certainly went loud, i hope to compare it with my Jbell tapped horn soon.

Paul, if you're referring to your party: I wasn't really pushing it. Can we do a shoot out at your place?

@ Jbell: if Paul has a suitable place, maybe we have a some 'real life' measurements soon . I have two T48's loaded with 3015LF. They're only 21" wide, not 24" like the plans state (otherwise they wouldn't fit in my car ), so they will be a little less loud, but not that much.

Paul, maybe we can measure 1 TH, 1 T48, 2 T48's and 2 T48's V-plated. What are you using to power your TH?

[polviggen]

that would be very cool, you want to measure outside ?

i only tried it out with my markbass amp yet, that only about 260 watts, not really enough for the TH.

we can measure here, no problem.

[jbell]

I'd love to see the results. 28v outdoor@10m would be ideal.

I expect the T48 to win at 100hz, and the TH to win at 40hz.... It's that iron law thing.