Adding a tweeter to DX3?

[Jon Ver Halen]

From my experience:

Visaton Horn tweeter TL 16 H 8 OHM

Works well.

LCY 100K

Aurum Cantus G2

Raven R 1.1

These are not dynamic enough.

The Fostex horn tweeters (T90, T900, etc.) work well.
The RAAL ribbon 140-15D works well.

The RAAL and Fostex Magnesium diaphram tweeters are my favorites.

You have to add crossovers & padding to match.

As always, YMMV.

[ttan98]

Visaton Horn tweeter TL 16 H 8 OHM works well

LCY 100K, not dynamic(ND)

Aurum Cantus G2 - ND

Raven R 1.1 - ND

The Fostex horn tweeters (T90, T900, etc.) workS well.

The RAAL ribbon 140-15D works well.

If I am not mistaken all these tweeters are fairly expensive except for Aurum Cantus...(less than US$90each). Also all of them are high quality tweeter.

My suggestion experiment with less expensive tweeter if you like the sound upgrade later. I would opt for Aurum first, which I am thinking of getting myself.

Bearing in mind earlier some purist don't use tweeter.

[Jon Ver Halen]

My suggestion experiment with less expensive tweeter if you like the sound upgrade later. I would opt for Aurum first, which I am thinking of getting myself.

IMHO, the DX3 sounded better without the Aurum, it sounded as if the tweeter slowed down the system. It did, however, add just a bit of sheen on the highs.

With the preferred tweeters the system sounded like you made a nice addition to the sound, and nothing was lost.

[ttan98]

Originally posted by Jon Ver Halen


IMHO, the DX3 sounded better without the Aurum, it sounded as if the tweeter slowed down the system. It did, however, add just a bit of sheen on the highs.

With the preferred tweeters the system sounded like you made a nice addition to the sound, and nothing was lost.

currently I use a Motorola Piezo(el cheepo tweeter does mean it is inferior, x-over at about 8K)), it seems to work quite well.
the other recommended tweeters are far too expensive for. Thanks for your suggestion.

I heard elsewhere that dome tweeters do not work as well with full range, is this correct?

[Jon Ver Halen]

I heard elsewhere that dome tweeters do not work as well with full range, is this correct?

I have yet to find a dome tweeter that is 97 dB efficient, so I have never tried one.

[AndrewT]

Originally posted by Jon Ver Halen
I have yet to find a dome tweeter that is 97 dB efficient, so I have never tried one.

Hi,
most treble drivers have a dome somewhere in the air moving mechanism.
My Audax HD-3P and Tannoy HPD both have.
The dust cap in the middle of a coned driver provides much of the highest frequency output.
What shape is the diaphram of a compression driver? Domed?

[Jon Ver Halen]

What shape is the diaphram of a compression driver? Domed?

The Audax is a piezo unit, the Tannoy is horn loaded. I assumed the question related to a voice coil driven, direct radiating tweeter which is the typical definition of a dome tweeter.

If you choose to widen that definition all sorts of possibilities exist. But I never heard of anyone refer to a horn tweeter as a dome tweeter because there is a dome in the driver. Likewise, piezo tweeters are typically called piezo tweeters in order to differentiate them from "standard" dome tweeters.

[KMMM]

OK. That's all good.

Looks like I'll be trying The Fostex super tweeter.
One question though:

The Lowthers in the MLTL has a bump in Martin's frequensy response diagram - arround 7k to 15k in this design.
could this be the reason I get listening fatigue after a while?
After all it's at least 5dB.

The question is: would it be possible to dampen this bump?
Would it be best to cross over the Lowthers at 7-8k and then 8-9k on Fostex (ca 95dB)?
Then again may be there are better wways to do it?

Like leave it alone?

Best regrads
Kaare

[KMMM]

I realize that the frequensy response diagram I've been looking at might not be
the final one...(?)
MJK made a revision to the Baffle Step Correction Circuit.
I made the updated one.
Is there an updated frequensy response diagram some where?
Are there a lot of difference in the new Correction Circuit?

http://www.quarter-wave.com/Project0...on_Filter.html

Could any one help me out here?

Best regards
Kaare

[pdan]

Hello Kaare,

In your first post you said you wanted to "bring a bit more sweetness from the music";is it possible that your drivers are not fully run in?

My experience with the EX3 is that they needed a good 6 months of regular use to run them in. Thereafter, they always sounded sweet to me.


Cilla