Unsatisfying output from a 12" FI Q.

[lilmaniac2 5,000+ posts]

yea david can build speakers but boxes are too hard

 

[dB Dom 10+ year member]

Why dont you call Dave and talk to him.

Maybe if he has some time, he could help you figure things out first hand.

Its always easier being there in person.

 

[NoXious 10+ year member]

How about resetting headunit settings by pressing reset or disconnecting power and start fresh with your eq settings.

 

[BIGsherm7272]

yea, I am having the same problem with my 13W6v2's. They are in a box built to the subs specs, nice box. but, on late night tip, first set of notes are great, the next, not so much. But I just got it installed, still have to play around with the amp a little. So, you guys say that the subwoofer level on the deck should be turned up quite a bit for the higher voltage? Cause my kenwood has 5 volt preouts......and on the amp, the SSF should be all the way down?

 

[LinxuS 10+ year member]

Davids out of town atm, but he should be back soon. I really think the box is fine. He had some other boxes that he built waiting to be shipped out, and they definately looked "professional" to me.

But yeah, I will be giving him a call and see if he can help me out when he gets back. He'll probably end up saying that it's the sub lol //content.invisioncic.com/y282845/emoticons/tongue.gif.6130eb82179565f6db8d26d6001dcd24.gif

 

[bdawson72 5,000+ posts]

It sux to see that you are still having this problem

 

[DFW40 10+ year member]

Davids out of town atm, but he should be back soon. I really think the box is fine. He had some other boxes that he built waiting to be shipped out, and they definately looked "professional" to me.
But yeah, I will be giving him a call and see if he can help me out when he gets back. He'll probably end up saying that it's the sub lol //content.invisioncic.com/y282845/emoticons/tongue.gif.6130eb82179565f6db8d26d6001dcd24.gif

I have my Q in a 2.3 box tuned to 27-28 hz and it hits the low notes on those songs with authority. Are you sure you box is tuned to 30hz, is it possible there was a miscaculaton and it is tuned to 34 or 36 hz? Also it could be the type of vehicle you are putting it in, have you had any other boxes or subs in the car that did hit those low notes?

 

[dB Dom 10+ year member]

Lol yes we are sure the box is tuned to 30. This has been gone over many times already.

 

[LinxuS 10+ year member]

Well i dont have the same set up but i have a jl12w6v2 in a 2.0 tuned at 31 hz and i had a similar problem with lows what i did was use steeper lpf slope (24db) (not sure if ur particular deck has adjustable crossover slopes)and set it between 55 ~ 60 hz and i was quite happy after that, also i had a pioneer deck before make sure u have the loud function off and dont boost the lows from the Para Eq more than +2 i personally never use it makes bass sound 1 noted. On a side note try setting low on the para Eq to 100 hz and N2 width and set it to -6 did the trick with my old set up //content.invisioncic.com/y282845/emoticons/naughty.gif.94359f346c0f1259df8038d60b41863e.gif
Hope everything works out.

You are my hero. End of story.

I decided to try out what he said, lowered my LPF a tiny bit on the amp itself, set the gains for the 60 hz, and put the SSF up to about 20 hz.

This thing is now wanging like I wanted it to //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif Still doesn't throw out Late Night Tip, but Soul Survivor has my mirrors, roof, back window, and passenger door flexing decently. The Lows are finally keeping up with the mid range lows.

For a single 12" sub, this is way more than I ever expected.

Voltage is now dropping like I expected it to //content.invisioncic.com/y282845/emoticons/laugh.gif.48439b2acf2cfca21620f01e7f77d1e4.gif. 13.1-13.2 on Soul Survivor. The amp is actually pushing some voltage at that level. Before it'd remain a constant 13.9 on any song with a lower note than about 45-50 hz. I never thought I'd be so happy to see my voltage dropping like crazy. Can't wait for the Alt to get here, come on Thunder9500! haha.

Just on a side note, what does a sub sound like when it bottoms out? Is it a loud clicking / thumping sound, or is it fairly hard to hear? Just want to make sure I don't have the SSF set too low.

Once again, thanks to everyone that contributed to this thread, and helped in any way.

 

[dB Dom 10+ year member]

Bottoming out sounds like metal hitting metal.

Good to hear you got it set up proper now.

I think you had overexagerated the higher freq and was setting your gain too low for the real lows to come in. Now it sounds like everything is balanced. **** it must feel good now.

Makes me kinds sad, cuz I hear that new lil wayne song today and turn it up to hear the bass but remember I sold my Q...

 

[LinxuS 10+ year member]

Bleh, that's no fun. Just curious, why'd you sell yours?

Yeah I knew it was something with the EQ, but I couldn't figure out how to fix it. Must have been a really steep slope, letting it completely drop off on the lows.

Still has me confused though. SS is 31 hz, right? Where as Late Night Tip is 32 hz on the lowest note?

Doesn't make sense to me, but I'm just happy to actually have a sub producing all of the low notes now.

 

[dB Dom 10+ year member]

I dont know SS but LNT is 31 hz last note.

I sold it to try something new. Change is good. Maybe Ill buy a Q again.

 

[GrnEydDvl 10+ year member]

Edit: I thought you meant SSF, you meant Soul Survivor.

 

[LinxuS 10+ year member]

No worries //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

I need to steal a friends camera again and take some more pictures, and a video or two.

 

[bassaholic 10+ year member]

I glad u got things working well now i know how fustrating u must have felt.I figure i needed to drop the lpf on mine and use a steeper slope because although my box is tuned and 31 hz higher frequencies such as 50hz and up are also boosted a couple dbs plus my car is very peaky at around 55 hz (cabin gain) so wat i did was set gain with crossover set lower and now its just how i want it.//content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif