Installed the Sonic Fx today.

[PESteele 10+ year member]

I installed my friends 15 today in 3.5^33 off of a tantrum 1200.1 and the stock hu. It sounds very tight and clear buts really lacking on the low notes that my q absoltly hammers. Could this be because its a stock hu. Otherwise its pretty **** loud and sounds good. Not reaching the high x-max's that it should though.

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[mazdakid 5,000+ posts]

face it back, or you can just let me get it

 

[PESteele 10+ year member]

didnt try that yet but its just straight up barley moving on the lows, is that right?

 

[Calikid 5,000+ posts]

no sound FTL!

 

[mazdakid 5,000+ posts]

crossover could be set too high, ssf too

 

[PESteele 10+ year member]

no crossover is set near 80-100 and ssf around 25. im thinking the hu filters out the low lows to not damage the speakers

 

[Speedyd718 10+ year member]

no crossover is set near 80-100 and ssf around 25. im thinking the hu filters out the low lows to not damage the speakers

probably, my factory buick radio did.

 

[PESteele 10+ year member]

yeah thats what i was thinking

 

[Immacomputer 10+ year member]

These "lows" don't happen to be around tuning do they?

 

[PESteele 10+ year member]

im talking probably 37-30

 

[Raven 10+ year member]

Some, but not all, stock HUs have a built in HPF crossover that slowly engages itself as the volume goes up. It's to prevent the stock speakers it's attached to from distorting at high volumes. Seeing as Sonic FX is very similar to IA, low end shouldn't be at a loss at all unless it's install related or a HU with a mind of it's own.

IMO, YMMV, etc, etc.

 

[davidfre21 5,000+ posts]

my Q 15s had no issues goin low //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif ... and chances are that is one of my old ones lol

 

[iceteebone 5,000+ posts]

my Q 15s had no issues goin low //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif ... and chances are that is one of my old ones lol

it is your old one //content.invisioncic.com/y282845/emoticons/laugh.gif.48439b2acf2cfca21620f01e7f77d1e4.gif

 

[PESteele 10+ year member]

how was it when you had it

 

[Immacomputer 10+ year member]

im talking probably 37-30

If you mean in your original post that the enclosure is 3.5 ft^3 tuned to 33, then this seems likely.

Have you ever used a ported enclosure before? At and around tuning, cone movement will be decreased.