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jimd
03-15-2008, 10:02 AM
I thought I'd ask you fellows on what in your opinion is the best High Efficiency tweeter out there. Your opinions?

JIM

Mr. Widget
03-15-2008, 10:15 AM
What is your application? What frequency range are you after?


Widget

jimd
03-16-2008, 01:05 AM
5-7 K and up, mated with horns and drivers. Jim

Mr. Widget
03-16-2008, 09:19 AM
I really like the TAD ET-703 at 8KHz. There are several high efficiency ribbons available >100dB. I haven't tried any of them, but they do look quite promising. The JBL 045Be is also excellent, but it has a rather low efficiency and I doubt that it would be usable that low in frequency.


Widget

edgewound
03-16-2008, 12:34 PM
5-7 K and up, mated with horns and drivers. Jim

JBL 2407 or 2408 mated to an OASR "Dr.Seuss" waveguide.

Mr. Widget
03-16-2008, 01:24 PM
JBL 2407 or 2408 mated to an OASR "Dr.Seuss" waveguide.The question was for "Best" not "Good". ;)


Widget

jimd
03-16-2008, 01:28 PM
As an old Altec guy, I am not familiar with the 2407 or 2408. I am a bit familiar with the 2405. do you have any specs? JIM

edgewound
03-16-2008, 01:45 PM
As an old Altec guy, I am not familiar with the 2407 or 2408. I am a bit familiar with the 2405. do you have any specs? JIM


http://audioheritage.org/vbulletin/showthread.php?t=6368&highlight=2407&page=7

JBL has no published specs, but here a good thread on the performance.

Also..."best" can be qualified by value, as well. The TAD costs 3 times more than the 2407....which isn't trivial here.

Ian Mackenzie
03-16-2008, 01:49 PM
http://audioheritage.org/vbulletin/showthread.php?t=6368&highlight=2407&page=7

JBL has no published specs, but here a good thread on the performance.

Also..."best" can be qualified by value, as well. The TAD costs 3 times more than the 2407....which isn't trivial here.

I would rather a nice overseas holiday Down Under:bouncy:

Mr. Widget
03-16-2008, 01:58 PM
Also..."best" can be qualified by value, as well. The TAD costs 3 times more than the 2407....which isn't trivial here.I suppose, however when someone asks about the best sports car or the best SUV, they typically expect it to cost a bundle.

If we want a top quality bang for the buck option then I'd definitely look at one of the China made ribbon tweeters from Arum Cantus and the others. They sound soooo much better than any of the ring radiators. The S3 which has a sensitivity rating of 100dB/watt/m is currently on sale for $250 at PE. That's almost $900 per channel cheaper than the TAD. :D


Widget

jimd
03-16-2008, 04:29 PM
Actually,

I am getting an NOS 2405, was wondering how it stacked up against the new ones. JIM

Mr. Widget
03-16-2008, 04:58 PM
Actually,

I am getting an NOS 2405, was wondering how it stacked up against the new ones. JIMThat's an entirely different question. :)

JBL doesn't really make anything quite like that anymore. They would be too expensive. Not as expensive as the TADs, but much more than the market would bare.

The 2405 is fine. I would not use it below 10KHz though. It tends to sound really harsh at lower frequencies. If your ears are dull you might not mind though. There are quite a few L65 fans about and they like the 077 (2405) crossed over quite low as it is in that system.


Widget

RKLee
03-19-2008, 12:13 AM
Personally for me I like the E-V T350s. The factory crossover is 3.5Khz, but I use 7KHz using an Altec 806/811 combo for mid-range.

Steve Mac
03-19-2008, 09:37 AM
Some say this is the best out there.
110dB sensitivity...750 bucks a pop it better be....
http://www.madisound.com/catalog/product_info.php?manufacturers_id=131&products_id=293

BigT
03-19-2008, 09:51 AM
Some say this is the best out there.
110dB sensitivity...750 bucks a pop it better be....
http://www.madisound.com/catalog/product_info.php?manufacturers_id=131&products_id=293

You can buy 10 of them for ~$680 per. We could do a group buy.

Ian Mackenzie
03-20-2008, 02:00 AM
5-7 K and up, mated with horns and drivers. Jim

Jim,

Your selection of HF device depends a goodo\ deal on the capabilities of your horn/driver in the 4-9K area and beyond and the net sensitivity of the system.

For example your current driver and horn may well extend to 10k and perhaps 15K with suitable Fh eq either passive or active. In which case the role is more of a Super tweeter starting at 13-15K. There are a number of low mass hi sensitivity devices that would work but dont expect high power handling and low power compression if crossed over below 10K.

Looking at the other extreme your horn/driver may perform best from 800- 4000 hz and fall apart above that in terms of transient response, distortion and HF dispersion.

In this case you may look for a broader range device or even a good quality 1 inch driver on a smaller horn that will offer the dynamics and power handling required to keep pace with the larger horn. If you care to check out some of the Japanese horn home pages they are all about selected ranges of horns, even 5-6 ways. The days of using a 075 Ring radiator are long gone for home use. For pro use practically anything goes depending on your budget and expectation.

If you are able to provide more specific details about your system it will help narrow the focus. Based on careful selection, the correct device need not necessarily be the most expensive or the best for the application and more often than not this is the case in most commercially sucessful systems.