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Tweeter replacement recommendations

I am building an inexpensive system to place in my office. I have a Rotel rcd-971, probably getting an older (80s) Denon receiver(tuner needed), and a friend has a used pair of Paradigm Titans. It will only see low volume use.

The tweeter in one of the Titans has retired. I want to replace both tweeters. Modifying the enclosure some, is no problem.

I am thinking, since this is a place of business, the more relaxed sound of a fabric dome tweeter may be the best choice. I want to keep the cost and modifications to a minimum. The Titans have a 17mm metal dome tweeter crossed at 2.3khz, efficiency is 86db. I have browsed Partsexpress.com and found many tweeters. I like the cost and numbers for the Vifa TC 1" fabric dome, but the Morel 1 1/8" looks interesting as well.

Any ideas, pointers, or recommendations are greatly appreciated.
distortion
seandtaylor99
1,262 posts
 
Try contacting www.madisound.com. They have drivers and probably good advice.
clueless
763 posts
 
I agree with Sean. Call and ask Mad and PE. You basically want to get something that is close to what you are taking out and/or study up so you can make appropriate changes which can be challenging. The existing tweeter was likely matched with a pad (to level match the sound volume) and crossover (control roll-off)to match it to the woofer. Nothing sounds worse than asking a tweeter to go lower than it wants to.

Did you read the primers on speaker and crossover design at partsexpress? My recollection is that they are fairly good. They spell out the basic issues.

Also if you ask at a diy speaker board like the Madisound forum or diyaudio.com you might get someone with experience right on point. This can't be the first of these tweeters have been replaced.

Sometimes (most) you cannot trust the mnf. numbers.

I remain,
distortion OP
571 posts
 
Those are good suggestions, thanks so much.

I opened up the enclosure and removed the tweeter last night. It is surely dead. The crossover is very minimal. A small, but well constructed coil, and a single cap. No board, nothing fancy, anchored to the wall with a wire-tie and screw. I cant see how many Microfarad the cap is, but according the the manufacturer data it is crossed at 2.3khz/12db. So I am looking for tweeters that have fairly flat response to around 1.8khz or lower.

The tweeter is about 15mm across the driver face and appears to be a poly dome, not metal as I originally thought. From its size/construction I would surmise that it has difficulties reproducing the lower end of the spectrum that the crossover is asking it to.
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