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In Reply to: RE: If putting in new speakers, then put cap required , not existing posted by Edp on February 06, 2024 at 07:28:31
I was not intending on turning this into an automotive car stereo thread. here is what I am doing.
I am replacing the front dash 3 speakers w JL 3.5" speakers. JL C2-350x
I do not want to change the door speakers
The existing dash speakers have caps on them which limit the bass sent to them, my intention is to insert the new speakers w the same size capacitor so that the door and dash speakers are balanced and get the appropriate frequencies designed by the manufacturer.
Note: The OEM dash speakers and the new replacement speakers have the same 4 ohm impedance and sensitivity rating (+/- dB)
If I use a dash speaker cap which allows frequencies further in the lower range would that adversely affect the dash/door balance because of the frequency overlap ?
Is there something amiss w my process that I am missing?
(original post edited to correct the exact model number of the speaker)
Edits: 02/06/24Follow Ups:
I was not able to locate JL-350x, only a coax tweeter midbass combo C2-350x.
Understand your approach of only changing a part of the system. If possible, nearly more important than bass blocking, is the overal efficiency match between existing vs new JL drivers.
As this is a partial change out, using same value cap on new drivers ( if they have mostly same impedance curve,not just impedance rating) is a safe bet.
Yes, its the JL C2-350x . assuming the new speaker does go down lower in frequency level, are you recommending using the same bass blocker or change the cap to allow the new speaker to go even lower frequency level? Given the doors are at the feet level in the cabin, I would not have an issue with getting a wider frequency range from the "better" dash speakers. Can you refer me to a location or suggest a cap value for those speakers?
( I guess this turned into an auto stereo thread)
After checking w Crutchfield and going to the JL audio website, there is no mention of a capacitor directly on the speaker so a capacitor of some size is needed to block lower bass frequencies. the specs on this speaker says it goes down to 130 Hz so the speaker will need a cap well above this to block lower frequencies.....
I'd be cautious about dash vibrations, if the dash mounted speakers go too much lower. That can be really annoying.
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