Lcy 130 Ribbon Ts Parameters

GOWA · 10th June 2007, 06:33 PM

Does anyone have the TS Parameters for the LCY 130 RIBBON TWEETER? I contacted Ying Tai Trading Co. through their website at http://www.lcy.com.hk/ with no luck. All other manufacturers have the Driver specs available on their websites but not LCY. The only infomation that is listed is:
Frequency Response : 1.8KHz-60KHz
Sensitivity : 92dB / 2.83V / 1M
Nominal Impedance : 8Ù
Magnet Type: Neodymium magnet
Ribbon Effective Area : 740mm2
Ribbon Thickness : 0.006mm
Nominal Power Handling : 150W

I know that John Krutke has tested this particular tweeter, so John if you are out there, can you help with this matter?

Keruskerfuerst · 10th June 2007, 08:53 PM

In common sense, a ribbon speaker unit does not have T/S parameters.

oshifis · 13th June 2007, 08:58 AM

It sure has, but it is used on an infinite baffle.

GOWA · 13th June 2007, 01:31 PM

So how do I create a crossover without any of these specs?

oshifis · 14th June 2007, 12:48 PM

Calculate with the DC resistance and set the crossover frequency at least one octave above Fs - that's all. It must have a matching transformer, and the resistance seen by the crossover is the DC resistance of the tweeter X the turns ratio squared.

ypasco · 4th July 2007, 12:02 PM

just go and see the zaphaudio.com site. he has tested the LCY130.

What i can say is :

the impedance is quite flat (about 10 Ohms) and slightly rise at 20kHz (transformer effect)

What is important to know is the natural 5 or 6dB/octave rising response curve of this tweeter... I have a LCY108 and the response curve is quite the same as the LCY130. I did measure at 0 degre and i have a 6dB/octave natural rising curve... 15 to 20 degre make the LCY flat at 88 or less dB in efficiency.

it is more 88dB than 92dB in sensibility. 92 is reached at 20kHz...on axis... but as i mentionned, this tweeter is not a winner in eficientcy.

well, i hope this help

10th June 2007, 06:33 PM	#1
GOWA diyAudio Member Join Date: Jan 2007 Location: Ontario	Lcy 130 Ribbon Ts Parameters Does anyone have the TS Parameters for the LCY 130 RIBBON TWEETER? I contacted Ying Tai Trading Co. through their website at http://www.lcy.com.hk/ with no luck. All other manufacturers have the Driver specs available on their websites but not LCY. The only infomation that is listed is: Frequency Response : 1.8KHz-60KHz Sensitivity : 92dB / 2.83V / 1M Nominal Impedance : 8Ù Magnet Type: Neodymium magnet Ribbon Effective Area : 740mm2 Ribbon Thickness : 0.006mm Nominal Power Handling : 150W I know that John Krutke has tested this particular tweeter, so John if you are out there, can you help with this matter? __________________ Website

10th June 2007, 08:53 PM	#2
Keruskerfuerst diyAudio Member Join Date: May 2007	In common sense, a ribbon speaker unit does not have T/S parameters. __________________ Houston, we have a problem!

13th June 2007, 01:31 PM	#4
GOWA diyAudio Member Join Date: Jan 2007 Location: Ontario	So how do I create a crossover without any of these specs? __________________ Website

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Fountek ribbon tweeter 3cm2 ribbon black square alumunum faceplate	lduarte1973	Multi-Way	3	16th June 2009 09:50 AM
Hi-fi Sub parameters	aleexman	Subwoofers	1	11th January 2008 12:47 PM
Parameters	Dr.EM	Full Range	3	15th March 2007 03:44 PM
Help with PR parameters	sheik	Subwoofers	2	16th March 2005 12:13 PM
E-V T/S Parameters	ingvar ahlberg	Multi-Way	2	23rd April 2004 06:58 PM


	Please consider donating to help us continue to serve you. Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving

13th June 2007, 08:58 AM	#3
oshifis diyAudio Member Join Date: Mar 2004 Location: Budapest, Hungary	It sure has, but it is used on an infinite baffle.

14th June 2007, 12:48 PM	#5
oshifis diyAudio Member Join Date: Mar 2004 Location: Budapest, Hungary	Calculate with the DC resistance and set the crossover frequency at least one octave above Fs - that's all. It must have a matching transformer, and the resistance seen by the crossover is the DC resistance of the tweeter X the turns ratio squared.

4th July 2007, 12:02 PM	#6
ypasco diyAudio Member Join Date: Nov 2005 Location: Sherbrooke, Québec	just go and see the zaphaudio.com site. he has tested the LCY130. What i can say is : the impedance is quite flat (about 10 Ohms) and slightly rise at 20kHz (transformer effect) What is important to know is the natural 5 or 6dB/octave rising response curve of this tweeter... I have a LCY108 and the response curve is quite the same as the LCY130. I did measure at 0 degre and i have a 6dB/octave natural rising curve... 15 to 20 degre make the LCY flat at 88 or less dB in efficiency. it is more 88dB than 92dB in sensibility. 92 is reached at 20kHz...on axis... but as i mentionned, this tweeter is not a winner in eficientcy. well, i hope this help

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)

New To Site?	Need Help?
Register to Participate Search Privacy Statement Contact Us	Frequently Asked Questions Did you forget your password? Mark Forums Read