Does anyone recognize this ribbon tweeter?

[JohanH]

Hello all,

this is on sale here for about $25,-

It's being advertised as made in Taiwan and has modelnumber 454.

Does anyone of you know what it is and maybe even know some specs?

Thanks in advance,
Johan

[wuffwaff]

Hi,

looks like the "multicel" I used to have in my "Pied Piper" speakers (made in Holland ) Don´t know the specs anymore but a short search should do the rest.

William

[JohanH]

After some searching with your info it looks indeed like they are Multicel .
The only specs I found were:
8 Ohm
120 W (8 kHz at 12 dB/Okt.)
92 dB 1W/1m
3 kHz - 50 kHz

Which would make them fairly useable.

Oh no, not another project

[AeroWB]

These Ribbons are the same as used in my BNS evolutions (also made in holland) which is a great speaker.

Where were they on sale ? I would like to have a spare one.


Details at the back (just screwed it out)
---------------------------------------------------
BNS Hifi Ribbon tweeter
Type : CTF 90 T
Impedance : 80 Ohm
Frequency Range : 5-30KHz
Maximum Power 30Watt
Specially Selected for BNS Evolution
---------------------------------------------------

It is used as the super tweeter in a four way system with a filter at 8500 Hz 18dB/oct.

Greets

Willem

[JohanH]

Hello Willem,

They are for sale at: http://www.brigatti.nl/
Look under 'Nieuw'

The seller also told me they were used in BNS speakers so they are probably the same. That and as the info on their website is all they have, they might very well have bought the lot from BNS.

I bought 2 (yesterday) and they look quite nice.

Johan

[amp-guy]

I recognize these planar tweeters

they are JVC HSW1101 or maybe a recent copy

I used some till recently till an oscillating power amp took em out

they were also sold by RAT-SHAK For a short time

Ihave their spec sheet if you are interested.

[JohanH]

Wow again,

thanks a lot amp-guy.

I have found references to the JVC but couldn't find a spec sheet, so I would appreciate if you would send it to me.

Thanks again.

PS. in the meantime I have also found this: http://www.schenk-audio.de/frihu/Multicel_Ribbon_2.jpg

Looks like this tweeter came in many guises

[AeroWB]

I ordered two of these units @ brigatti, and they arrived pretty fast. I took one of them apart to see how they were build. It looks to me they are build somewhere in taiwan or china as a low cost, medium quality, ribbon tweeter. And the fact that they are sold under various brandnames agrees with my findings.
I don't say it looks bad, but it is no high-end build quality either.
Maybe that also explains why the units in my BNS speakers say "specially selected" they probably select the good one's out of a bunch of units from variable quality, because that's cheaper then buying a brand/model that's always good quality.

I would however advice you not to take these units apart since the chances are quite big your unit will perform less after taking it apart and putting it back together. The ribbon itself is glued to the plastic and when you separate them there's a big change you will deform the ribbon.

greets,

Willem.