Are all piezo tweeters equal?

[noviygera]

Looking for something similar to the phy-hp -- piezo with paper cone.
Are all piezo tweeters with paper cone?

regards,
Herman

 

[Inductor]

No, they are not the same. They are all different. You can get a ribbon type tweeter, what's your problem with that?!
""Are all piezo tweeters equal?""

Look at Founteks, Bohlender Graebener Neo3...
Fountek makes hi-fi woofer, midbass, and ribbon tweeter loudspeaker components
https://www.solen.ca/pub/index.php?...?catalog=3&niveau1=1&niveau2=1&s1=2&s2=1&s3=2
Products_Fountek Electronics Co.,Ltd
The Madisound Speaker Store
http://www.k4revenge.com/Mat/new/bgneo3pdr.pdf
Fountek JP3 vs.
Jp3.0 NeoCD30  Crossover for 3way speakers
http://www.fountek.com.au/products/JP30/FountekRibbon_XOV2_8KHz.jpg
JP3.0
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WiredState Audio Community • View topic - Recommend super tweeters for fullrange

 

[JMFahey]

No, they are not the same. They are all different. You can get a ribbon type tweeter, what's your problem with that?!
""Are all piezo tweeters equal?""

Look at Founteks, Bohlender Graebener Neo3...
Fountek makes hi-fi woofer, midbass, and ribbon tweeter loudspeaker components
www madisoundspeakerstore com/ribbon-tweeters/fountek-neocd ribbon-tweeter-round-flange-blackjp3.0_NeoCD30_ribbon_tweeter_crossover/JP30/FountekRibbon_XOV2_

😱 The OP asks about Piezo Tweeters ($5/10 stuff) and you post a truckload of magnetic, ribbon tweeters, from $50 to over $500? 😱

Back to Noviygera: no they are not the same, there are better and worse, price is some kind of a guide.

If you read the Boominator thread, they often suggest a very good one, which is still inexpensive.

 

[jcx]

it is hard for ceramic piezo to be good broadband sound transducers

there were some PVDF piezo plastic tweeters which have potential - at least better BW than ceramic
not overwhelmingly popular, doubt they were ever seen in hobby distribution

 

[Joachim Gerhard]

I tried a lot of them over the years and was hunting for a bargain.
I coated the membrane, i damped the plastic housing, i put on a resistor and a cap.
All where crap for HiFi.

 

[Joachim Gerhard]

Audax and Gallo use a diffent principle that seems to work :Piezo speakers
I think Pioneer did something similar earlier.
I have only experince with the Audax.
It is very good but rather expensive and the units i had suffered from loss of preasure.
There is now a service to pump them up again.
If i had known i maybe had kept it.

 

[Joachim Gerhard]

History and technology :https://www.sparkfun.com/datasheets/Sensors/Flex/MSI-techman.pdf
Audio is on page 58.

 

[phase_accurate]

The Pioneer ones with the piezo plastics form the late seventies were called "high-polymer" tweeters. Their flagship speaker back then was the HPM 150 with an omnidirectional high-polymer tweeter:

Verkaufe Lautsprecher Pioneer HPM 150

Regards

Charles

 

[dragonweed]

The Audax piezo-foil tweeter was an interesting animal, sure it worked as a super-tweeter above 5-6k, but due to its operating principle its response has changed from day-to day, according to the weather...... 😀. Before storm fronts the "bubble" was very tight, at times of high pressure fronts it softened ,wrinkled pretty ugly. (its tightness was controlled by contant pressure gas in the diaphragm)

 

[Inductor]

😱 The OP asks about Piezo Tweeters ($5/10 stuff) and you post a truckload of magnetic, ribbon tweeters, from $50 to over $500? 😱

Back to Noviygera: no they are not the same, there are better and worse, price is some kind of a guide.

If you read the Boominator thread, they often suggest a very good one, which is still inexpensive.

You must be kidding me, maybe all your money in the bank is not enough to buy one?!
PHY-HP TW37 is a very expensive driver, it can cost you a few hundreds (EU) or a few thousands in the US (OP).

Ribbons are the best option.
One of the last persons to best implementing piezos was Wayne Parham with the Motorola KSN 1038
Pi Speaker Forum - Re: Are all screw-on piezo horn drivers similar ? - Wayne Parham, March 30, 2001 at 17:01:28

 

[Joachim Gerhard]

That Motorola was maybe the best one of it´s type.
Problem is that there are so many fakes and copies on the market so that you can not be sure it´s a Motorola. Has anybody a source for that Motorola ?

 

[Inductor]

In reality it is eerie similar to the 2" Motorola KSN1020A piezo cone tweeter, at $15.14 on Amazon and US $8.54 on Ebay.
http://www.wescomponents.com/datasheets/Speakers/horntweeters/piezoelectric_speakers.pdf

 

[GM]

Has anybody a source for that Motorola ?

This is as good as it gets WRT a 'quality' replacement: US SPEAKER Home Page Menu - Speaker Cabinets, Guitar & amp; Bass Amps, upgrades and custom design. The world’s widest choice of speaker parts. “If you have listened to live music, you have almost certainly listened to Eminence”

Click 'Supertweeters' at left, then 'CTS' at top of new window & be prepared for 'sticker shock'.

GM

 

[Inductor]

GM,
for the OP what about the Ciare from your link?!

One of our smoothest sounding tweeters!
Ciare 1.26NdTW tweeter- Ciare 1.26NdTW is a lightweight neodymium tweeter for all high quality high frequency speaker systems - Ciare Speakers - Ciare 1.26NdTW tweeters available now.

note: I suppose the OP has a PHY-HP main driver, if not it doesn't make sense wasting my time...
Lack of initial information is detrimental for posters at diyAudio.

 

[GM]

I don't have any knowledge of either of these drivers, only the original Motorola and its actual replacements, though my SWAG is that none of the 'vintage' design piezos will be in the same 'league' as either of them.

FWIW, the only super-tweeters I've auditioned worth mating to a high quality sound system are some of the high end ribbons and Foster/Fostex compression horns.

GM

 

[noviygera]

To update my OP with reference to all replies:

I have tried a various tweeter types in my system: ribbon, AMT, dome.
I have not tried a paper piezo like the PHY-hp. Since it is so expensive, I would like to try a similar sounding tweeter. My guess is that another "paper piezo" would be a good idea of the PHY-hp sound.

Therefore I am searching for a tweeter in sound similar to PHY-HP.

thanks,
Herman

 

[GM]

Understood.

Not necessarily.

Anyway, you might have more luck finding folks who have auditioned the Phy-hp on a French audio forum.

GM

 

[cT equals piD]

Motorola Piezo

This tweeter has the Motorola name and logo embedded in the plastic, and printed on it the number 643. The same number 643 is on all six of the tweeters that I have, so maybe 643 is the model number. These I purchased I think in the 1980s. Is this a good one?

Regards,
Pete

 

[Joachim Gerhard]

I think the 80th is too early for a Chinese copy so they may be the original ones.

 

[cT equals piD]

I think the 80th is too early for a Chinese copy so they may be the original ones.

Thanks for the feedback. Piezo tweeter- an interesting design.