Bullet or Super Tweeter? Anyone test these?

[bear]

Ok, has anyone TESTED or listened to one of the bullet "super tweeters" like the Pyle PDBT-35, also offered by Cadence CLVT-60, Audiopipe and an number of other resellers and importers. (Peavey too?)

There appear to be a few versions in 4 ohm and 8 ohm, ferrofluid and not, also higher claimed sensitivity (~108) and lower (~98), higher and lower power handling. All seem to be China sourced. (would like to know which factory makes 'em).

If anyone has a bonafide curve and waterfall for these I'm interested in seeing it.
Parts Express sells the either the Pyle or the Peavey, can't recall now.

Also there is a Visaton unit at higher price that is somewhat similar in design, the published curve for it is not bad... http://www.visaton.de/en/chassis_zub...n/tl16h_8.html

I'm very curious as I am looking for something to augment a very nice horn above ~10khz... (not an easy task in reality). Trying to gauge if these inexpensive units have enough merit to warrant dorking with the obviously flawed horn flare to "gild the lily" or make the "silk purse from the sow's ear"...

Yes, I have actually gone ahead and purchased some to check out - but I'm interested in what others have found and measured...

_-_-bear

[supercharged]

Now you see I have a pair of these -





8ohm 70wrms, 1500Hz - 20kHz according to the bumpf.

And I am unsure what to do with them! So overall I am of no help, unless I could test one and divulge the results, however I really don't know how to go about that as I am only just embarking on my DIY audio path to enlightenment!

Cheers,

J

[Pano]

Good question, Bear. Wish I could be of help.
I've often wondered about these as P.E. carries a lot of them. Anywhere from $10 to $86 each. Mostly Pyle, Pyramid and some Selenium.

It sure would be nice to find a good one among all the choices.

[DualTriode]

Hello All,
I have a pair of JBL 075’s the ALINCO version of this one
http://www.jblpro.com/pages/pub/components/2402.pdf .
Played with other JBL drivers the performance is very dynamic. The JBL rolls (falls off) sharply above 15K Hz , not that I can hear it.
This style driver projects a narrow beam, if you are in the sweet spot that is ok. Let us know how yours works.
DT
All just for fun!

[LukasLouw]

Randy, I can easily get a pair from Cadence, but I have no measurement system right now as my ISA PC that ran LMS has croaked - waiting for the new LX500 from LinearX:
LX500 - Precision Audio & Acoustic Analyzer - 1
Update - LinearX Forums

Lukas

[Godzilla]

>>> if you are in the sweet spot that is ok.

Their sweat spot may be somewhat off axis. Having played around with one of the cheaper Eminence compression drivers in an inexpensive Dayton waveguide i can say they satisfy my ears when crossed higher than say 8khz... lower than that they draw attention to themselves in an obvious way. I do believe they have their possibilities and are worth exploring.

[steve71]

I have a handful of Gauss 1502 built tweeters that I'm using above 7.2Khz in a active setup with digital x-over.

There are some obvious issues, such as the C-C spacing causing lobbing and also I have not payed any attention to matching the polar patterns.

They don't seem to be very efficient above about 12Khz (IIRC). I'd like to try the fostex units, but they are pretty expensive.

For the most part I've been very happy with the sound, but I'm sure it could be improved around the crossover region.

They are a conical design with a 90x90 deg dispersion pattern.

[bear]

Godzilla, this is a bit different than a compression driver mounted on a waveguide... I am focusing in (at least for now) on this particular style of driver.

_-_-bear

[bear]

this one. or ones like it...

[planet10]

Originally Posted by supercharged

Now you see I have a pair of these -

I have a pair of those. Mine are called Goldwoods. The 1st thing you do with those is dissassemble them and using a scalpel & small files and clear up all the plastic castings -- i haven't gone further than that yet.

dave