tuba vs taphorn?

[nephylum]

Hi bjorno,

Like always: nice work! I like your comments and hints.

As to the tapped horn: I prefer the 4 section over the 3 section simulation, it makes it a lot easier to level out the peaks and valleys in the passband, also, keeping the L12 dimension as short as possible has a tendency to clean up the impulse response

I don't think that you need much more equalization and filtering with a tapped horn than with any other vented enclosure. This is probably a gross simplification, but they all unload below the passband, and they all have audible artifacts above the passband that should be filtered out. In practice this doesn't seem to be a major problem at home volume levels (below house wrecking).

In the end the room is going to be the real problem.

Regards,

is this... your final answer?

 

[tb46]

Hi nephylum,

I don't feel it would be productive for me to go any further without having measured values for the driver you want to use.

Regards,

 

[nephylum]

Hi nephylum,

I don't feel it would be productive for me to go any further without having measured values for the driver you want to use.

Regards,

since the company doesnt offer an le measurement... would you like for me to purchase the driver and send it to you?

 

[tb46]

Hi nephylum,

That's a very generous offer, but I don't have the time to get that involved. Maybe somebody like littlemike or jbell could help you.

Regards,

 

[tb46]

19Ov.2 Double Fold

Hi nephylum,

I modified an old drawing that uses the double fold tapped horn. This should give you an idea if you want to go any further with the 19Ov.2 (size and all...). Let me know if you want to build something like this, and need the internal dimensions.

Regards,

 

[epa]

dont forget to tighten the bookshelfs with this one

 

[nephylum]

Hi nephylum,

I modified an old drawing that uses the double fold tapped horn. This should give you an idea if you want to go any further with the 19Ov.2 (size and all...). Let me know if you want to build something like this, and need the internal dimensions.

Regards,

YES... I WANT TO BUILD THIS!!!!!

internal dimensions would be sweet. thanx!

 

[tb46]

Hi epa,

For the fun of it I just simulated a larger box with a little less low end extension: @ 670L 2.83V/2pi/100dB w/ 25Hz @ -3dB. Provided the T/S are in the ball park, that's one nice driver.

Regards,

 

[epa]

Hi epa,

For the fun of it I just simulated a larger box with a little less low end extension: @ 670L 2.83V/2pi/100dB w/ 25Hz @ -3dB. Provided the T/S are in the ball park, that's one nice driver.

Regards,

f3 @25 @100 db

 

[Don Snyder]

Here's a box using the Lab12 GenII from Eminence. There have been at least 5 of these made including this beaut by Tony.

 

[Don Snyder]

If a sub is placed on a stage, the bass suffers. The design I just showed can be modified to make it fit in front of the stage.

 

[nephylum]

than guys for all the help.... hows th's cover higher bass frequency's? just to give an idea... tune to 2:17 of this song. will the th cover this well?


YouTube - KoRn - Predictable with Lyrics

 

[epa]

than guys for all the help.... hows th's cover higher bass frequency's? just to give an idea... tune to 2:17 of this song. will the th cover this well?


YouTube - KoRn - Predictable with Lyrics

i think i hear some 150~200 hz upper notes in that base.
the th only does ~2 octaves,so it depends on how its tuned.
do you want to use it as a basgitar amp,or as a sub part of a system?
,so it depends on what you want.

 

[nephylum]

i think i hear some 150~200 hz upper notes in that base.
the th only does ~2 octaves,so it depends on how its tuned.
do you want to use it as a basgitar amp,or as a sub part of a system?
,so it depends on what you want.

i wanna use it as a sub... part of the system. my mains will be pretty loud crossed over around 55hz.

 

[epa]

i wanna use it as a sub... part of the system. my mains will be pretty loud crossed over around 55hz.

r u the same person as nephylum ?
i think the th is the way 2 go for you ,if you have room for a minimum of 400 ltr cabinet,
http://www.diyaudio.com/forums/members/nephylum.html

 

[nephylum]

r u the same person as nephylum ?
i think the th is the way 2 go for you ,if you have room for a minimum of 400 ltr cabinet,

yes... i am nephylum. still researching and trying to figure this out. this particular design is starting to appeal to me. i still wanna build a th, but im having a hard time finding the right design


Tuba HT

 

[Cal Weldon]

nephylum, PM sent.

 

[tb46]

19Ov.2 - 18" - T/S

Hi guys,

I just got the value for the Le for this speaker from Elemental Designs, they seem to be very friendly and helpful, when their email doesn't crash. The other T/S parameters are reportedly up-to-date.

Elemental Designs Audio 19Ov.2: Le=3.1mH

For those who like to simulate.

Regards,

 

[GM]

Thanks, not good, but better than the 4 mH I assumed.

GM

 

[bjorno]

Thanks, not good, but better than the 4 mH I assumed.

GM

Hi, I used 5 mH for my best TH shot,but hesitated until now to post..
Here is a comparison for a TH that IMO will have good SQ if XO:ed
at 80 Hz and one other earlier suggested by Qliver that I rek.
to XO at 60 Hz or below if ever built.

PS: Listen to the attached *.wav files and compare.

b