Sound Stage tuning.

falkenbd · Post by **falkenbd** » Mon Jun 22, 2009 7:31 pm

well if you are using a passive crossover, changing tweeters might not be such a good idea...

Don't you have an eclipse 7200 MKII ? You wouldn't have to use the passives if you did and it'd open the door to tons of tweeter options and tuning would be better.

JeremyC · Post by **JeremyC** » Mon Jun 22, 2009 7:53 pm

No he can change his tweets, just needs to remember that different resistance at the tweeter will change his x-over point

Honestly man Seas makes some car audio speakers that are super cheap and sound amazing.

cool mr grinch · Post by **cool mr grinch** » Mon Jun 22, 2009 8:05 pm

well i have 2 options, i can change the rear channels to run tweeters since i'm considering removing the "rear fill" they are still in place just not hooked up. or just run in place of the tn 52s i have now.

falkenbd · Post by **falkenbd** » Tue Jun 23, 2009 6:56 am

JeremyC wrote:No he can change his tweets, just needs to remember that different resistance at the tweeter will change his x-over point
Honestly man Seas makes some car audio speakers that are super cheap and sound amazing.

I'm just saying that there might be something built into the passive filter that isn't a standard filter.

The impedance curve of the new tweeter wouldn't match the first, and the filter would surely work differently. (could be bad, or good)

Sure, you can change them, but you can never know until you try exactly how it will sound. It might make really good tweeters sound not so good. It could however work fine. A lot of it depends on what the current passiver filter is doing.

Which is why I really recommend having the front stage be active if you want to try out different equipment.

JeremyC · Post by **JeremyC** » Tue Jun 23, 2009 8:57 am

It won't be a problem with his crossovers. I had the same ones and swapped to the seas tweets he is running.

I did the same thing with the morel x-overs I'm running now. Swapped from the elate tweet to the supremo.

I'm sure there are x-overs out there it wouldn't work on, but so far I haven't been in a situation where it didn't work like I expected it to.

cool mr grinch · Post by **cool mr grinch** » Tue Jun 23, 2009 7:53 pm

i am looking at these possibly? http://www.sonicelectronix.com/item_932 ... 1021T.html

falkenbd · Post by **falkenbd** » Tue Jun 23, 2009 8:33 pm

cool mr grinch wrote:i am looking at these possibly? http://www.sonicelectronix.com/item_932 ... 1021T.html

don't do it...

first of all, are you looking for an 8 ohm or 4 ohm tweeter? (you need to match the passives if you are going to use them)

i have a set of LPG 26NA tweeters you could try. I bought them from a guy and they came with the domes a little botched up.

If you want to try them, you can have them for the cost of shipping (think flat rate box) as long as you promise that you'll give them to someone else on the board to try if you ever get rid of them.

cool mr grinch · Post by **cool mr grinch** » Tue Jun 23, 2009 9:10 pm

my meter read 6.8 ohms. i'm hoping to find a swivel type tweeter. in the 1" area.

NorthQuad · Post by **NorthQuad** » Tue Jun 23, 2009 9:37 pm

I know you're looking for a swivel and I'm not sure if these will be suitable but...

Vifa D26NC55 1" Tweeter

JeremyC · Post by **JeremyC** » Tue Jun 23, 2009 10:46 pm

Ok it took me a second to remember where to look, but this will give you an idea of how your x-over point will change with different ohm loads.

http://www.bcae1.com/

Click on passive x-overs on the right.

Scroll down to the equation for figuring coil size.

You will need to know the focal x-over point, and resistance of the tweeters you have now (TN 52s) and the tweeters you want to run,