[kyrill]

hi ppl

i am building a OB speaker, well from 100hz and up and seek a truly
transparent and musical tweeter which will be amped by a Decware TABOO
6 watt single ended pentode  tube amp. So i need 90+db tweeter starting at 2-3khz taking over
my mid driver (Focal Audiom 6W)
But which one? I am very picky. I tried ribbons but hear a hint of metal
I would have liked the hiquphon tweeter

but its sensitivity makes me doubt



Any advice? 

[markC]

I run a pair of Visiton G25FFL's in my OB's. They're border line on the sensitivity you require, but at least they're 90db from 2k unlike the hiquphon. They have a blip above 8k and I had to add a little LR circuit to tame this. Once I did though, I was quite pleased with the sound.

[opnly bafld]

What about their sensitivity makes you doubt?

Lin 

[JoshK]

How steep of a slope do you plan to use?  I think I've read that Hiquophon's work best with high xo point unless you cross them a bit steeper.  3K would probably be the min for me if I were going to use them.  However I'd suggest also considering Seas's new DXT waveguided tweeter.  You'll get much better power response matching in that area.

[kyrill]

thx

steep. I will use a digital active crossover and tri amp the system

i have heard so many wonderful musical stories about the Hiquophon. But the graph clearly shows at 3k their sensitivity is 87 db. how would a steeper  Xover change that?

The seas new tweeter. Ok I i have heard Seas and was impressed, i have not heard this new tweeter of course.
but there must be more musical high end tweeters no with high(er) efficiency?

[S Clark]

Check out Danny Richie's T-6 tweeter.
http://www.gr-research.com/index.asp?PageAction=VIEWPROD&ProdID=109
Depending on how much efficiency you need you might like the T-3.
http://www.gr-research.com/index.asp?PageAction=VIEWPROD&ProdID=108

[kyrill]

hi
the Gr tweeter are surely very sensitive.
but ehh my worldly nature comes up, everything has its price.

I find them too cheap, if that can be. I like the price very much
but i miss other data, like the waterfall for instance. how is their ringing?

well for that price i can try anyway, no?

i seek true high end tweeters for a reasonable price.80-200 dollar a piece
and they must have a good reputation as i will buy them without the chance of listening to it.

I have now the Aurum Cantus G3 and in my setup they are a bit too crystalline for me

[el`Ol]

With a Hiqphon you are in the price range where you can take an AMT as well.

[kyrill]

i think i found it
starting from yr advices and links
i jumped from link to link and found
the reliably impressing me the site from
http://www.zaphaudio.com/tweetermishmash/
and made this choice based on his remarks:
"Peerless 810921 ($59) - Also known as the new HDS tweeter. Peerless finally creates a world class tweeter to compete with the best from Seas and Scan-Speak. Very low distortion levels and smooth, controllable response. Minor FR dip at 6.5kHz. Beautiful cast metal frame. Reasonable price. There's not much to complain about here and this is one of the best in the group."

 

Price is a very nice extra 

[sbrtoy]

HDS not a bad choice, Vifa XT25 and Seas as mentioned are also nice pieces that fit your requirements and both can be crossed fairly low with steep slopes...

[Badwater]

Check out the Fostex tweeters available from Madisound.  The T90A is 106 db, but only good down to 5K.  I am using these in a super tweeter application and the sound very nice. Another interesting tweeter (haven't used this one) is the Fostex T250 Pure Magnesium Tweeter which is good down to 1500 Hz; although very pricy at $263US each. 

Bill

[JeffB]

Zaph has said that the Seas 27TBFCG is the best tweeter in the mishmash.  Better than the more expensive Seas tweeters.
It is $30.  91db sensitivity.

[Jason1]

There's the Vifa DX25TG05 which is 93.5 db.

http://www.partsexpress.com/pe/showdetl.cfm?&Partnumber=264-578

Or the new Seas 27TBCD/GB-DXT which is 92 db.

http://madisound.secureserverdot.com/catalog/product_info.php?manufacturers_id=149&products_id=8322

[kyrill]

Zaph has said that the Seas 27TBFCG is the best tweeter in the mishmash.  Better than the more expensive Seas tweeters.
It is $30.  91db sensitivity.

Hi Jeff

these are good remarks but i miss enthusiasm in the remarks:
Seas 27TBFCG ($30) - Very smooth response, down a few dB at 20kHz. Very low distortion of all types, particularly the near non-existant high order harmonics. No notable energy storage problems. Ultrasonic breakup node at 26.5Khz. The hexagrid cover is ugly.

if i compare it with this:
Peerless 810921 ($59) - Also known as the new HDS tweeter. Peerless finally creates a world class tweeter to compete with the best from Seas and Scan-Speak. Very low distortion levels and smooth, controllable response. Minor FR dip at 6.5kHz. Beautiful cast metal frame. Reasonable price. There's not much to complain about here and this is one of the best in the group.

other suggestions (Fostex) are too expensive for me if i can get a very good one with the specs I need for 59 dollar

[JeffB]

I understand what you're saying Kyrill.
I just last week found Zaph's site for the first time.
I was also interested in tweeters.

There was some thread somewhere I found where Zaph clarified his comments and stated
that the Seas 27TBFCG was actually the best in all his testing.
Unfortunately, I am unable to find the link.
I found links with other people saying Zaph declared the 27TBFCG as the winner of the mismash.
You might want to do a little more searching.
I had better luck searching for 27TBFC/G than 27TBFCG.

For me, I have no personal experience, I am just looking for other peoples recommendations and judgement.

It appears a big advantage of 27TBFC/G is the ability to cross-over around 1.4kHz and maybe even a little lower.
It also has very low distortion measurements.
However, it does have a response drop above 10kHz.

[doak]

Is there a reason no one is talking about compression drivers here? 

Doak

http://www.radianaudio.com/products/compression/1_driver.php?viewT=compression&viewC=1_driver&viewI=

[kyrill]

ah now my amateurism is exposed

i have a probably unfunded suspicion to compression drivers
i belief a standard compression driver sounds less for the same price
than a good high end speaker

I think most compression driver manufacturers have PA systems in mind and
not an extreme critical music lover as i am. I even carefully strip my teflon caps from their pvc jacket
as this flashy outer layer is not designed to sound good but for protection during storage and shipping
Even your link mentions: "They are ideal for use in high output, high power touring sound systems and stage monitors"


The thing is i am content what the non compression drivers offer but do belief
the high end sounding compression ones have high end prices

[kyrill]

I understand what you're saying Kyrill.
I just last week found Zaph's site for the first time.
I was also interested in tweeters.

There was some thread somewhere I found where Zaph clarified his comments and stated
that the Seas 27TBFCG was actually the best in all his testing.
Unfortunately, I am unable to find the link.
I found links with other people saying Zaph declared the 27TBFCG as the winner of the mismash.
You might want to do a little more searching.
I had better luck searching for 27TBFC/G than 27TBFCG.

For me, I have no personal experience, I am just looking for other peoples recommendations and judgement.

It appears a big advantage of 27TBFC/G is the ability to cross-over around 1.4kHz and maybe even a little lower.
It also has very low distortion measurements.
However, it does have a response drop above 10kHz.

yes true, but the lower you cross in that beginning region, the lesser the sensitivity. With my 6 watt amp i need to have those 93db sensitivity, so 2.3khz is then a better choice

[markC]

Correct me if I'm wrong, but the Seas 27TBFC driver is an aluminum/magnesium dome. Unless there have been Huge improvements in metal dome tweeters since I last heard them, mating them with wide range open baffle drivers would be blasphemy. ( My opinion of course).