Fix for soundbar speakers?
11-23-2008, 06:45 PM
#63
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Guys,
The sound bar is crossed over at the infinity amp at about 100 - 125Hz.
Unfortunately if adding an after market system you can not put a high to low level tap in before the amp as the signal between the head unit and the infinity amp does not vary with volume. The volume is controlled at the amp via CAN bus communication between the head unit and infinity amp. This includes bass, treble, mid, balance and fader control.
There is also no full range output from the Infinity amp.
There are 8 channels.
2 channels - front tweeters - high pass filter
2 channels - Front mids - low pass filter
2 channels - Sound bar speakers - high pass filter
2 channels - Sub - low pass filter
This was determined by inputing various frequencies from 15000Hz to 30Hz and monitoring what signal came out at each set of speakers.
The sub is crossed over at about 100 - 125Hz with a low pass filter and the sound bar at 100 - 125Hz with a high pass filter.
My suggestion if you are adding a sub is to tap into the front mid speakers which only cuts out the very high tweeter frequencies.
If you are adding a split system powered by a aftermarket amp to the front i would suggest getting a four channel amplifier and using 2 channels for the tweeters and 2 channels for the mids. Then tap into the front tweeters with a low level converter and run rcas to the amp channels which power your new tweeters. Then tap into the front mids with a low level converter and and run rcas to the amp channels powering your new mids. You wont use the crossovers provided in the new split system set as the crossover will be done at the infinity amp and this will give you a full range sound at the front.
Alternatively some four channel amps have a pre-out which combines the signals into the 2 left channels and the 2 right channels. This is perfect as you can combine the low level signals from the infinity front tweeters and the infinity front mids and get a full rage signal.
Hope this helps.
The sound bar is crossed over at the infinity amp at about 100 - 125Hz.
Unfortunately if adding an after market system you can not put a high to low level tap in before the amp as the signal between the head unit and the infinity amp does not vary with volume. The volume is controlled at the amp via CAN bus communication between the head unit and infinity amp. This includes bass, treble, mid, balance and fader control.
There is also no full range output from the Infinity amp.
There are 8 channels.
2 channels - front tweeters - high pass filter
2 channels - Front mids - low pass filter
2 channels - Sound bar speakers - high pass filter
2 channels - Sub - low pass filter
This was determined by inputing various frequencies from 15000Hz to 30Hz and monitoring what signal came out at each set of speakers.
The sub is crossed over at about 100 - 125Hz with a low pass filter and the sound bar at 100 - 125Hz with a high pass filter.
My suggestion if you are adding a sub is to tap into the front mid speakers which only cuts out the very high tweeter frequencies.
If you are adding a split system powered by a aftermarket amp to the front i would suggest getting a four channel amplifier and using 2 channels for the tweeters and 2 channels for the mids. Then tap into the front tweeters with a low level converter and run rcas to the amp channels which power your new tweeters. Then tap into the front mids with a low level converter and and run rcas to the amp channels powering your new mids. You wont use the crossovers provided in the new split system set as the crossover will be done at the infinity amp and this will give you a full range sound at the front.
Alternatively some four channel amps have a pre-out which combines the signals into the 2 left channels and the 2 right channels. This is perfect as you can combine the low level signals from the infinity front tweeters and the infinity front mids and get a full rage signal.
Hope this helps.
11-08-2010, 07:29 AM
#64
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fix for better yet replace the plastic sound bar ?
I replaced the crappy factory sound bar spearkers in my 07 4 dr JK with kicker speakers . it doesnt sound any better then the blown factory ones..
and it seems to me that the plastic housing no matter what we do is still going to sound no good. does any body make an entire replacement sound bar with quality speaker sound in mind ? 
and it seems to me that the plastic housing no matter what we do is still going to sound no good. does any body make an entire replacement sound bar with quality speaker sound in mind ?
11-08-2010, 08:18 AM
#65
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I replaced the crappy factory sound bar spearkers in my 07 4 dr JK with kicker speakers . it doesnt sound any better then the blown factory ones.. and it seems to me that the plastic housing no matter what we do is still going to sound no good. does any body make an entire replacement sound bar with quality speaker sound in mind ?
and it seems to me that the plastic housing no matter what we do is still going to sound no good. does any body make an entire replacement sound bar with quality speaker sound in mind ? SLIM_SNOOPY
11-08-2010, 08:52 AM
#66
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Here's my two cents.... I recently swapped my stock sub with 2 12's and the front and soundbar speakers came too life. I think the stock infinity sub steals a lot of power from the amp.
11-08-2010, 09:42 AM
#67
JK Junkie
The fix is to install a Dodge Nitro amp in place of the stock JK amp. Total plug and play upgrade. Then the speakers play full sound. I have has this setup for over 2 years and couldn't be happier.
Only one downfall before you take your JK to the dealership you have to swap the stock amp back in. Other wise when the mechanic plugs i the starscan into the OBD2 port they will flash the JK settings to the Nitro amp and you will be back to square one.
Only one downfall before you take your JK to the dealership you have to swap the stock amp back in. Other wise when the mechanic plugs i the starscan into the OBD2 port they will flash the JK settings to the Nitro amp and you will be back to square one.
11-08-2010, 03:15 PM
#68
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All in all no matter what we do the sound bar is going to sound like poo.
I had hell of a time today. Instead of getting the mopar kick speaker. There was a deal for some alpine at my local bestbuy. So I got the wires all up and going. And ready to mount, yeah disappointed lol it didn't fit correctly. I shouldve done some research. Not only the bracket didn't go in, it was a 4 ohm speaker and we need the 2? I read some where. Grrr that's what I get for being cheap and buying an open box item.
Conclusion I'm very pissed of lol at myself and sound bar. Any ways I'm just going to run a 4 channel amp. And any stock infinity stuff can go in the trash. Who knew i should've ask for the basic sound system.
By the way I got one speaker in the sound bar. And it sounds a bit better. The other speaker is paper weight
I had hell of a time today. Instead of getting the mopar kick speaker. There was a deal for some alpine at my local bestbuy. So I got the wires all up and going. And ready to mount, yeah disappointed lol it didn't fit correctly. I shouldve done some research. Not only the bracket didn't go in, it was a 4 ohm speaker and we need the 2? I read some where. Grrr that's what I get for being cheap and buying an open box item.
Conclusion I'm very pissed of lol at myself and sound bar. Any ways I'm just going to run a 4 channel amp. And any stock infinity stuff can go in the trash. Who knew i should've ask for the basic sound system.
By the way I got one speaker in the sound bar. And it sounds a bit better. The other speaker is paper weight
09-14-2011, 06:46 PM
#69
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Originally Posted by whpony96
The fix is to install a Dodge Nitro amp in place of the stock JK amp. Total plug and play upgrade. Then the speakers play full sound. I have has this setup for over 2 years and couldn't be happier.
Only one downfall before you take your JK to the dealership you have to swap the stock amp back in. Other wise when the mechanic plugs i the starscan into the OBD2 port they will flash the JK settings to the Nitro amp and you will be back to square one.
Only one downfall before you take your JK to the dealership you have to swap the stock amp back in. Other wise when the mechanic plugs i the starscan into the OBD2 port they will flash the JK settings to the Nitro amp and you will be back to square one.
