Question about Dynaudio MD100 Car Tweeter

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Hello, i mistakntly bent the esotar2 tweeter dome, i fixed it by applying finger pressure on the dome, it popped back as it was. will it affect its performance? thanks a lot. joe

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If u got it back in place an it looks fine then id plug it in an see if it sounds the same if it does just slowly *** more power if it sounds fine u okay

Posted on Oct 05, 2009

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2 Answers

Diamond 8.4 serie are there 2 way or 3 way


Hi,

These speakers are 3-way there are 2 woofers and 1 tweeter per speaker. Here are the technical specifications of each speaker:

Two 6.5-inch Kevlar woofers and 1-inch silk-dome tweeter per speaker
86 dB sensitivity
20 to 150 watts recommended power (per channel)
6 ohms impedance
30 to 20,000 Hz frequency response

Please rate my answer if this helps.

Many thanks,

Chris

Mar 02, 2011 | Wharfedale Diamond 8.4 Main / Stereo...

2 Answers

Tweeter not working


Check the continuity of the removed tweeter with a VOM meter (I use an original Heatkit MM-1 available on eBay for $20) and do the 1.5 volt battery click & scratch test mentioned above.

Celestion A3 tweeters (also used in the A1 and A2 speakers) or the replacement diaphragms are no longer available from Celestion. A1 speakers show up regularly on the United Kingdom eBay website for $300 or less and are small enough to economically ship to the USA. You would also end up with a midrange spare speaker (assuming it is the same as in the A3 cabinets)

The part number for the A series 3 bar tweeter is T4969/P. The 3 bars refers to the 3 bars in the casting to protect the dome. I got this number from the box of my spare tweeter I have the earlier 1 bar castings in my A3's.

Go to www.ersatzteil-versand.at do an "artikelsuche" (article search) for the number T4969/P and something extremeley similar shows up except that they list the manufacturer as Onkyo. The part number and description are so similar to what is printed on my spare tweeter box it would be worth 81 euros to see what shows up.
I have designed an adapter plate for either a Scan-Speak Revelator Tweeter D2904/710002 4 ohm, 1" soft dome, 70 mm diameter magnet, $220 or a Vifa D27TG35-06 6 ohms, 72 mm diameter magnet, 91 db, $37.50..Both are available from:
http://www.speakercity.com/ in Burbank, CA


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I only modeled the front flange of the tweeter to save time. I have not built any of these yet but the price would probably be $400 for a pair of adapter plates and speaker flange modifications. But when you are done you would have replaceable tweeter for a long time to come. The 2 protective bars are drawer handles available for $3 each.

Other possibilities are:
http://www.audioloudspeakers.co.uk/boultons.shtml voice coil rewinding in the uk

http://www.speaker-repairs.com.au/coils.htm voice coil rewinding in australia

http://www.speakerex.com/diaphragms_new.html in Florida can rebuild the woofer and replace the midrange but no longer have the 4 ohm diaphragm for the tweeter.

If you want the drawings (and 3D geometry file necessary for the machinist to make the curved edges) for the adapter plate and tweeter flange modification contact me at mercedes280se-4@yahoo.com

Feb 11, 2010 | Celestion A3 Speaker

1 Answer

Wharfedale


Hello georgesverme,

I'd recommend starting with the local importer of Wharfdale products to see if they have exact replacement tweeters for sale. Contact:
Bob Springston, Sound Import, LLC
Phone: (508) 422-9788
Email: sales@soundimport.com

If you are unable to get tweeters from them, see if they will recommend a replacement or at the very least, provide you with the specifications, including the impedance, crossover point,frequency response, and power handling capability. If they won't or can't provide the information, then you are on you own. You'll want a relatively high-quality product, most likely 8ohm (but could be 16), crossover between 5-8KHz, frequency response from crossover to infinity (or at least beyond the range of human hearing).

Then try www.partsexpress.com. They have a large selections of speaker building products and carry small tweeters like yours in several brands, price ranges, and quality levels. Vifa is excellent. Tang Band is good. Goldwood is acceptable for entry-level speakers.

Hope this helps.

Aug 06, 2009 | MTX Audio TX4001 Component Speaker System...

1 Answer

Key popped off keyboard


On the Keyboard, There should be a small little clamp housing. On the back of the key you should see a piece of metal that is sort of Staple shaped (A non bent staple) Just try and put the ends of the metal into the housing, Then apply a little amount of force onto the key to pop it back in.
Before applying pressure, Make sure that both ends are properly in place.

Hope this helps!

Jan 05, 2009 | Sony VAIO VGN-FS640W Notebook

3 Answers

Inverted(puhed in)tweeter


Hi George,

You may be able to pull them out using tape. That is sellotape then gently pull .They should pop out like
a dented car panel. My understanding is these domes really protect moving coil from dust so should not affect sound. Worst case swop the tweeter.
Ive just bought a pair of revolution 3 with same "fault" so I will let you know how I get on .I am in Electronics trade as profession. It may be possible to gently remove dome using a surgical blade then popping out and gluing on with PVA / Latex glue coloured with black ink if you dont like white appearance.

It is sometimes possible to pull out using fine sewing needle push in then gently pull out as if removing a spell from your finger.

Hope this helps

Nov 21, 2008 | Tannoy Mercury MX3-M System

1 Answer

Taking apart a JBL N24


I removed the tweeter and found that I could stick two fingers through the hole and touch the back of the speaker. I was afraid that if I applied to much force I would break something, but after seeing a schematic of the speaker I realized there was nothing else attached except the wires. So, I used some muscle. It took a lot of pressure, but the speaker finally popped out. I was able to tighten the one screw that held down the circuit board in the back and re-assembled the speaker. Problem fixed.

Nov 15, 2008 | Audio Players & Recorders

2 Answers

Tweeters poked to death


I know this sounds silly, but I had the same problem. Your speakers have a little plastic bulb that has been pushed in, right?

If so, simply put your mouth up to the tweeter, seal with your lips and **** gently (seriously). The tweeter dome should pop back out and in to shape.

It worked for me.

Good luck.

Aug 03, 2008 | Celestion AVF302 Main / Stereo Speaker

1 Answer

Hifonics AS5.5Ci tweeter soldering !


Because they are tweeters, and only 4 months old. take them back for warranty. Most manufacturers will give 6-12 months.

Feb 08, 2008 | Hifonics AS6.5Ci 6.5" 2 Way 125W RMS...

1 Answer

Tweeters only works when touched!


This is not a solution, but I have the same problem. Obviously, the problem is with the tweeter not the crossover. I can't find a replacement tweeter so i am about to take it to my local stereo repair store and see if they can fix it. If you find a replacement tweeter, let me know.

Oct 13, 2007 | Audio Players & Recorders

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