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Guitars sound harsh, likely culprit?
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<blockquote data-quote="Jeffdachef" data-source="post: 8720142" data-attributes="member: 650438"><p>factory radio and LOC. Thats the problem right there. Everything wrong with the setup is that item alone. Stock decks have built in high pass crossovers and factory EQ curve no this is not something you can change its there even with all features off or neutral, its built in unchangeable tuning to make the stock factory speakers sound better than they should so the signal is completely whack and garbage. Now you have aftermarkets that require a flat signal, but you have an EQ curve tuned for your stock speakers, do you see the issue there?</p><p></p><p>Along with the stock head unit, you have no way to change the EQ along with the stock head unit having a crappy DAC so the signal quality is pretty crap from the start right off the bat and all you are doing is just amplifying that. You'll want a DSP that signal sums and then DE-Equalize and flatten the EQ curve coming in then allow you to tune the EQ, crossovers and time alignment to match your car's acoustics for proper sound quality.</p><p></p><p>Also you have a passive crossover on the JL components, thats like playing the lottery because you cannot change the crossover point and your vehicle acoustics may cause a natural spike in certain frequencies and the crossover point exacerbate those peaks making things sound horrible and not even a big EQ adjustment can help. If you get rid of the passive crossover and run active, you can use crossover points to tame those peaks naturally with a slight gap. For example hypothetically if you have a 3.5khz natural peak that makes guitars sound horrible, you'll be crossing over the mids at 3000hz and tweeters at 4000hz at -12 db slope, the gap would create a big enough attenuation at that frequency that fully tames the peak which results in relatively flat and smooth silky response.</p><p></p><p>However as of now, there is absolutely nothing else you can do can fix your issues. Phase, positioning, deadening can at best make miniscule improvements but the core issue will always be there. Adding more resistors will just cut out the good frequencies while your main issue is still unsolved. Or it makes it sound less annoying but the rest of the tweeter spectrum sounds like **** so its a wash.</p></blockquote><p></p>
[QUOTE="Jeffdachef, post: 8720142, member: 650438"] factory radio and LOC. Thats the problem right there. Everything wrong with the setup is that item alone. Stock decks have built in high pass crossovers and factory EQ curve no this is not something you can change its there even with all features off or neutral, its built in unchangeable tuning to make the stock factory speakers sound better than they should so the signal is completely whack and garbage. Now you have aftermarkets that require a flat signal, but you have an EQ curve tuned for your stock speakers, do you see the issue there? Along with the stock head unit, you have no way to change the EQ along with the stock head unit having a crappy DAC so the signal quality is pretty crap from the start right off the bat and all you are doing is just amplifying that. You'll want a DSP that signal sums and then DE-Equalize and flatten the EQ curve coming in then allow you to tune the EQ, crossovers and time alignment to match your car's acoustics for proper sound quality. Also you have a passive crossover on the JL components, thats like playing the lottery because you cannot change the crossover point and your vehicle acoustics may cause a natural spike in certain frequencies and the crossover point exacerbate those peaks making things sound horrible and not even a big EQ adjustment can help. If you get rid of the passive crossover and run active, you can use crossover points to tame those peaks naturally with a slight gap. For example hypothetically if you have a 3.5khz natural peak that makes guitars sound horrible, you'll be crossing over the mids at 3000hz and tweeters at 4000hz at -12 db slope, the gap would create a big enough attenuation at that frequency that fully tames the peak which results in relatively flat and smooth silky response. However as of now, there is absolutely nothing else you can do can fix your issues. Phase, positioning, deadening can at best make miniscule improvements but the core issue will always be there. Adding more resistors will just cut out the good frequencies while your main issue is still unsolved. Or it makes it sound less annoying but the rest of the tweeter spectrum sounds like **** so its a wash. [/QUOTE]
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Guitars sound harsh, likely culprit?
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