General SQ General discussion of Sound Quality related issues.

Underpowering tweeters?

Thread Tools
 
Search this Thread
 
Old 12-29-2011, 07:02 PM
  #1  
0 Watt CAFz'r
Thread Starter
 
Hertzaholic's Avatar
 
Join Date: Oct 2009
Posts: 6
Underpowering tweeters?

I currently have a passive crossover system with a newly installed JBL MS-8 processor. I could easily run an active system now with the features of the MS-8 at hand.

Theres just one thing... I would have to power 8 Image Dynamics Xs-28 tweeters (100 watt power handling each) from two channels rated at 127(actual rms watts) each. I would wire 4 per channel into 4 ohm. Thats roughly 32 watts per tweet. The other 6 channels would power 6 midbass speakers so no problem there.

I have no more space to be adding more amps to convert to an active setup. Taking advantage of the MS-8 to its full potential would be nice but I'm afraid the tweeters won't have enough power. I own an oscilloscope so I'll be able to detect any clipping.

Thanks!
Hertzaholic is offline  
Old 12-29-2011, 08:56 PM
  #2  
500 Watt CAFz'r
iTrader: (3)
 
zoomer's Avatar
 
Join Date: Mar 2006
Posts: 598
why do you have 8 tweeters in your car? all connected to the same 2 channel amp?
zoomer is offline  
Old 12-30-2011, 12:48 AM
  #3  
0 Watt CAFz'r
Thread Starter
 
Hertzaholic's Avatar
 
Join Date: Oct 2009
Posts: 6
Right now I have 3 sets of components (6 mid, 6 tweet) with passive crossovers for my front stage. Two Alpine PDX F4 amps are running those along with a set of 5x7's in the rear.

If I were to convert to an active setup, I'd buy two more tweeters to wire them correctly to make 4 per channel at 4ohm. The rest of the channels would power my 6 midbasses and the JBL MS-8 can power the rears.

All I want to know is, would wiring 4 tweeters to one channel at 127 rms watts be okay?

Feel free to suggest any other ideas
Hertzaholic is offline  
Old 12-30-2011, 08:06 AM
  #4  
500 Watt CAFz'r
iTrader: (3)
 
zoomer's Avatar
 
Join Date: Mar 2006
Posts: 598
the short answer is probably yes.
However I am still wondering why you are running 3 pairs of components up front? I have seen systems with 2 midbass but multible tweeters? doesnt that cause all sorts of poor imaging and soundstage issues because of multiple sources?

You certainly dont need to play it that loud.. Id hate to be your ears!
zoomer is offline  
Old 12-30-2011, 12:07 PM
  #5  
0 Watt CAFz'r
Thread Starter
 
Hertzaholic's Avatar
 
Join Date: Oct 2009
Posts: 6
The reason why I'm running 3 pairs of comps....is the same reason why people buy Ferrari's for example. It goes 200 mph, but you rarely go that fast. Only on occasion to put a smile on your or someone elses face.

I knew about imaging issues before I started the build, so I've lazer aligned everything to attempt to cut back on these issues. I'm surprised with how well my soundstage and imaging turned out. The MS-8 put the icing on the cake afterwards
Hertzaholic is offline  
Old 12-30-2011, 12:21 PM
  #6  
2000 Watt CAFz'r
iTrader: (7)
 
AAAAAAA's Avatar
 
Join Date: Mar 2001
Posts: 2,010
Post pics.
AAAAAAA is offline  
Old 12-30-2011, 03:41 PM
  #7  
0 Watt CAFz'r
Thread Starter
 
Hertzaholic's Avatar
 
Join Date: Oct 2009
Posts: 6
Underpowering tweeters?-img_63.jpg

Underpowering tweeters?-img_64.jpg

Underpowering tweeters?-img_83.jpg

Underpowering tweeters?-img_84.jpg

Underpowering tweeters?-img_1402.jpg

Underpowering tweeters?-img_154.jpg

Underpowering tweeters?-img_156.jpg

If you see anything I'm doing wrong or ideas of how to make it better please comment. I can take criticism
Hertzaholic is offline  
Old 12-30-2011, 09:40 PM
  #8  
2000 Watt CAFz'r
iTrader: (7)
 
AAAAAAA's Avatar
 
Join Date: Mar 2001
Posts: 2,010
That's really cool, looks very nice.
AAAAAAA is offline  
Old 12-30-2011, 10:42 PM
  #9  
Administrator
 
Dukk's Avatar
 
Join Date: Feb 2006
Posts: 16,855
Reality is that your tweeters probably will never see more than 32watts regardless while playing music so they will be absolutely fine.
Dukk is offline  
Old 12-31-2011, 11:21 PM
  #10  
4000 Watt CAFz'r
iTrader: (1)
 
Brandon's Avatar
 
Join Date: Jan 2001
Posts: 4,603
Reality is, if it's not Focal, who cares?!
Brandon is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
crazydutch
Install related
11
11-12-2008 09:21 PM
Wojtek
General SQ
5
10-21-2008 10:39 AM
Audiofool
General Discussion
10
01-17-2008 02:41 PM
Devolve
Car Audio Technical Discussions
13
11-26-2007 10:26 AM
porsche22
General Discussion
1
12-05-2006 12:18 AM



Quick Reply: Underpowering tweeters?



All times are GMT -5. The time now is 11:01 PM.