General SQ General discussion of Sound Quality related issues.

Tweeter harshness

Thread Tools
 
Search this Thread
 
Old Dec 1, 2010 | 06:43 PM
  #1  
s21197's Avatar
Thread Starter
0 Watt CAFz'r
 
Joined: Feb 2009
Posts: 34
Tweeter harshness

Why is it that when I turn up the volume the tweeters don't sound very good? It mostly happens when someone is singing and they make an 's' sound. Is this normal for most tweeters? Could it be my amp? Please help this is startingto irritate me
Old Dec 1, 2010 | 06:54 PM
  #2  
jalat's Avatar
2000 Watt CAFz'r
iTrader: (6)
 
Joined: Mar 2008
Posts: 2,736
is this a comp set? do you have the ability to change settings for the tweeter? might need to look at an L-pad
Old Dec 1, 2010 | 07:25 PM
  #3  
s21197's Avatar
Thread Starter
0 Watt CAFz'r
 
Joined: Feb 2009
Posts: 34
Yes it's a jbl gti608. I've got the tweeter setting on the crossover at -3db and have turned down the highs on the eq. What's an L pad?
Old Dec 1, 2010 | 10:27 PM
  #4  
jalat's Avatar
2000 Watt CAFz'r
iTrader: (6)
 
Joined: Mar 2008
Posts: 2,736
its a device used by some SQ guys to tone down the tweeters in a system. i dont know the technical side, but it greatly decrease the volume of the tweeter
Old Dec 1, 2010 | 11:13 PM
  #5  
veeman's Avatar
2000 Watt CAFz'r
iTrader: (3)
 
Joined: Nov 2004
Posts: 2,455
I've had those comps up front, and still have them in the rear. The tweeter is excellent (very detailed and very clean), but with certain source material, particularly poorly recorded or low quality tracks, the sibilance (harsh "S" sound) you're hearing can be pronounced. They are titanium dome tweeters (which tend to be bright, metallic sounding), but have a rubber surround to dampen those types of resonances which makes them much smoother sounding. Try different tracks of cd quality or first gen mp3 of 128 kps or higher, and experiment with different mounting angles for the tweeters. Unfortunately, there are certain tracks that just don't sound good with certain equipment or with any high resolution speakers (the speakers tend to bring out the track's limitations that may not have been noticed using lesser equipment such as oem systems or cheaper speakers). I don't have this problem at all, and mine were/are pointing right at my ears and getting 50 watts rms each....however, i use active crossovers and processing...and I've never used the passive cross overs that came with the set (that may be a factor); I also, only listen to high quality first generation rips at high bit rates and or cd quality tracks.
Old Dec 2, 2010 | 01:06 AM
  #6  
Sinemeup's Avatar
500 Watt CAFz'r
 
Joined: Apr 2006
Posts: 633
L-PADS
Old Dec 2, 2010 | 03:12 PM
  #7  
Dukk's Avatar
Administrator
 
Joined: Feb 2006
Posts: 16,860
How about a list of the gear you are using and what you are listening to on what media? The problem you describe can have many sources including but not limited to:
- tweeter breakup
- Amp clipping
- Passive crossover saturation
- Bad source material
etc..
Old Dec 2, 2010 | 06:41 PM
  #8  
s21197's Avatar
Thread Starter
0 Watt CAFz'r
 
Joined: Feb 2009
Posts: 34
Well all the stuff I have is as follows
components: jbl 608gtimk2
amp: mtx thunder tc4004
headunit: jvc kwnt3-hdt
and I'm using a USB flash drive for music.
most of the music I have is 192 kb or over so I don't think that's the problem.
I'm using the passive crossovers that come with the component set.
My amp however is only 65 wrms whereas the speakers are 150wrms a side
Old Dec 3, 2010 | 12:15 AM
  #9  
Kanadian-kaos's Avatar
0 Watt CAFz'r
 
Joined: Sep 2010
Posts: 23
There is a very different sound between metal and non. Sounds like you should have went for a component set with silk tweeters... they are much easier on the ears.

Are those tweeters on axis?
Old Dec 3, 2010 | 12:21 AM
  #10  
s21197's Avatar
Thread Starter
0 Watt CAFz'r
 
Joined: Feb 2009
Posts: 34
I'm not sure what u mean by axis.
As for the silk tweeters the last component set I had was a jl set with soft tweeters but they did the same thing. Is there any way of finding out whether my music is messed up in the higher frequencies?



All times are GMT -5. The time now is 10:27 AM.