randpost 10+ year member
Member
So I have been working on upgrading my car audio for about a month now. I have not had any experience before now. This was a budget build, so price did play a part in my purchases. Sound deadening was a bit pricier than I thought it would be So I dropped down from Mille legends in the front to the Mille pros. I stripped out my entire vehicle and put roughly 400lbs of deadener on the floor, roof, and doors. I did it in 3 layers; butyl, closed cell foam and a high density layer. I installed a component set up front and coax in the rear doors. I went with a single 12" sub for the lows. Finally I installed a head unit.
Now that I have everything installed, I like the sound be produced, but I do have a few issues with the passive crossovers and the tweeters. On songs that go up into the higher ranges the tweeters sometimes hiss. I don't want to say crackle but the sound has static on the highest frequencies. This happens on just a few songs. Mind you this is at the highest volume without distortion according to the C.L.E.A.N. system built into the amp. I also verified with a DD-1 (regret this purchase as it did exactly what the amps already did). My gains are set correctly. I really want to set a limit to the high frequencies being sent to the tweeters. Nothing in my set up allows for that currently.
Should I just run a inline cap to the tweeters? What cap would I need?
Should I go active crossover? Would I need a new amp for active?
I did do a ton of research, but my god there is a ton of info out there and some of that information seems to conflict and is the reason for my post.
List of items in my build:
Amps:
Rockford T750X1bd
Rockford T400X4ad
Speakers:
Hertz Mille MPK 165.3 Pro Component
Hertz Mille MPX 165.3 Pro Coaxial
JL 12w6v3 in Manufacturer Spec Ported Enclosure
Head Unit:
Pioneer 4400NEX (I wanted wireless Android auto)
Now that I have everything installed, I like the sound be produced, but I do have a few issues with the passive crossovers and the tweeters. On songs that go up into the higher ranges the tweeters sometimes hiss. I don't want to say crackle but the sound has static on the highest frequencies. This happens on just a few songs. Mind you this is at the highest volume without distortion according to the C.L.E.A.N. system built into the amp. I also verified with a DD-1 (regret this purchase as it did exactly what the amps already did). My gains are set correctly. I really want to set a limit to the high frequencies being sent to the tweeters. Nothing in my set up allows for that currently.
Should I just run a inline cap to the tweeters? What cap would I need?
Should I go active crossover? Would I need a new amp for active?
I did do a ton of research, but my god there is a ton of info out there and some of that information seems to conflict and is the reason for my post.
List of items in my build:
Amps:
Rockford T750X1bd
Rockford T400X4ad
Speakers:
Hertz Mille MPK 165.3 Pro Component
Hertz Mille MPX 165.3 Pro Coaxial
JL 12w6v3 in Manufacturer Spec Ported Enclosure
Head Unit:
Pioneer 4400NEX (I wanted wireless Android auto)
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