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Discussion Starter · #1 ·
i just dropped 600 dollars on jbl component and coaxial speakers front and back replaced the stock speakers kept the factory head unit cause there is no kit out yet when i turn a little bit of base up the speakers seem to give out and crackle is this cause the factory unit cant power the speakers there great on the treable and tweeters but the bass ehh no no anyone have any thing let me know there great speakers but can handle up to 4 times the amount of the 20w stock speakers someone help>>>>>
 

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Which Jbls did you put in? Dis you have an installer put them in? What volume on the deck are you running at?

What's your bass mid and treble set at?

Whats your pbass set to?

D
 

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Discussion Starter · #4 · (Edited)
i have the 660 series and 662 series jbl 6.5s 250 for the front 125 for the rears....no powerbass at all regular bass at negative 5 mid at 4 treb at 7 dec turned up from 22 to 25 if i turn the bass up at all i get a crackling sound like the speakers are shot or somehting but there brand new and installed at a audio store
 

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i have the 660 series and 662 series jbl 6.5s 250 for the front 125 for the rears....no powerbass at all regular bass at negative 5 mid at 4 treb at 7 dec turned up from 22 to 25 if i turn the bass up at all i get a crackling sound like the speakers are shot or somehting but there brand new and installed at a audio store
a few problems at work here.

The 660's and 662's are only good to 90 rms if they are powered by an amp. You are still only putting 25-30 w max through them.

You're volume setting of 22-25 is VERY high and is in the realm o being very distorted. I run my deck at 10-12 to maintain a distortion-free signal to my LOC and and then to my amps.

Another factor is that you have no crossover. It's very difficult to get bass out of 6.5 in speakers. Midbass is what they are really designed to output. I have much more expensive speakers being amplified to 75w rms and crossed over at 90hz. This keeps them under control, and my subs do the rest of the work. As an example, I accidentally had no crossover settng on my amp and they began to distort heavily as thy were trying to play frequencies much lower than they could really handle. A simple flip of the switch to enable the highpass filter cleaned them right up.

Suggestions:
-amplify them and set your crossover to 100hz to 120hz for that quality of speaker
-get a sub as it sounds like that's what you are going for (bass response)
-deaden your doors wen you've done the above as amplifying them introduces a new world of issues!

Doing the above will result in a good sounding system
Good luck!
 

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Discussion Starter · #6 ·
ok so i need to get an amp um if i get an amp do i need to get an aftermarket head unit or no thanks for the input i have the doors dynamaxed now i just got them done
 

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Discussion Starter · #8 ·
ok thanks yea i tried messin with them and now i keep the volume below 17 bas at -5 and power bass at low mid at 7 treb at 7 and it sounds pretty dam good will an amp really make them sound better what will the amp all do
 

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a few problems at work here.

The 660's and 662's are only good to 90 rms if they are powered by an amp. You are still only putting 25-30 w max through them.

You're volume setting of 22-25 is VERY high and is in the realm o being very distorted. I run my deck at 10-12 to maintain a distortion-free signal to my LOC and and then to my amps.

Hey D113! How ya been...?

About your post above: I thought I read on another one of your many excellent posts on audio that the H/U was pretty clean up to 22 volume setting (which is why I've set up my amp gains for max loudness when H/U at 22) but now you say 10-12... New oscilloscope analysis or empirical/anecdotal evidence?

Thanks and best regards,

******
 

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Nice catch ******!

You are right, it's still very clean however that's without any pbass and running the eq flat. He's +7 on his miss and highs though.

He also doesn't have a sub and no crossover on his doors which is making the 6.5's work very hard below 80hz.

I'm well! How's the friendly skies?
 

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Hey D113!

I'm v well... in YYC monday night, YHZ tuesday night and ORD wednesday. Had to deviate 250nm south of planned route from YUL to YYC to avoid a wicked thunderstorm line (tops to 52,000', tornadoes and 2.5" hail on the ground :eek:) but that was no sweat 'cause we had extra gas and picked up 50kts of tailwind (which is very rare going westbound) and arrived 20 min early :D.

I have PBass set to low, which initially seemed to sound pretty good listening to rock/blues on the Kenwood under-seat sub but lately I've discovered a bit of clipping when listening to some dance tunes so I'll try to wean myself off the PBass and do a better job of tuning the sub center freq (which ranges from 50Hz to 120Hz)and sub level. I also run with +2 on bass, everything else flat. I'll raise the amp gains a bit and run the H/U volume level at 20 max and see what that does to the (occasional)clipping.

See ya!

******
 

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Discussion Starter · #13 ·
hey guys ive finally gotten everything undercontrol with the speakrs and i can blast it all the way up to 25 on the stock radio with no amp no crossovers and it loud clear and crisp i am just going to leave it like that and install a small sub like a memphis 10 to give me a bit of bass thanks for the imput guys
 
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