Unsatisfying output from a 12" FI Q.

SSF is all the way down. Tried everything between the two intervals and all the way down gave the best result.. Should I raise it back up?

I think I have the LPF set flat. Right smack in the middle. I'll go check it though and see where it's at for sure, and maybe raise it up a bit.

 
I will send someone $10 paypal if they can help me figure out the problem lol, i'm getting desperate here.

As far as the coils go, what would make just 1 coil out of phase? Is it really possible to screw up + to +, and - to -, to make a coil out of phase? Dual 2 wired to 1 ohms.

I got a .9 ohm reading on my DMM.

I read through the manual and didn't really find anything I didn't already know. I'm going to take a look at the Initial menu and see what it's all set at really quickly.

Will also set my LPF at about 100. I might try turning the EQ to flat and see if that helps any.

As far as the X-over issue, that could be it. Would that cause the higher notes to have 2x or sometimes 3x the excursion of lower notes? Like I said, the intro on both of the newer Young Jeezy CDs wang, almost giving the Sub full excursion, but the lower ones are barely sub-par.

 
Well if you are getting more signal at higher freqs then you are getting more wattage... If you are getting less signal at lower freqs then you are getting less wattage, so yes that could defiantly and sounds to be the problem.....

Because the more volume (SPL) you want the more the cone has to move, larger voltage potential. So, if it's crossed over at lets say HPF 60 Hz, above 60 will move the cone more than below 60 because it is getting more signal...

It doesn't sound like an amp problem, because that wouldn't affect the frequency if the amps bunk it's totally bunk not just higher up unless it was in the active circuitry which controls the crossover in the amp. The box wouldn't make it do that either, because if you were playing below tuning the speaker would for sure bottom out, it's not the speaker because a speaker isn't frequency sensitive (it is but not this much), it's not the coil out of phase because then you would have maybe a half inch movement. If it's moving the cone a lot at higher frequencies it isn't the level from your head unit, because if it was it wouldn't move it a lot at all....

So, that leaves one problem.... Crossovers, or that your headunit isn't outputting the low frequency.... Unless I'm leaving something out....

SO, run out of the Sub-out not the non-faded out, check all connections from the head unit to the speaker... Make sure you are running the RCA's in the IN on the amp not he out or bridge..... And with out setting there looking at it that's all i have.....

 
B&W_EE also has an RE12.1 and a Fi Q.
//content.invisioncic.com/y282845/emoticons/fyi.gif.9f1f679348da7204ce960cfc74bca8e0.gif

nG
Wait... Is there another guy you know with a 2002 Buick and my setup.... Because if there is I'm going to kick his ***.....

//content.invisioncic.com/y282845/emoticons/laugh.gif.48439b2acf2cfca21620f01e7f77d1e4.gif

I need to get that kicker POS out of my sig.......

 
I know he has the same set up, we already established that. //content.invisioncic.com/y282845/emoticons/fyi.gif.9f1f679348da7204ce960cfc74bca8e0.gif//content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

I really think its something with the **** parametric EQ, and I wish there was a way to turn it off.

The preout is on Subwoofer, and not non-fading. Just rechecked that in the Initial menu. I think all the settings on the amp are fine, it's just what the head unit is feeding it, or lack there of.

God this is starting to aggravate me lol. $2000 head unit, and they have the worst EQ on it possible.

You mentioned the HPF. Right now it's set at 80. Could that be causing this major slope in the EQ? I swear it's like a vertical drop lol. Should I try turning it off and see if it gets rid of the slope?

There's a setting on my head unit where it turns the Rear outs into the subwoofer out. Should I even bother to try switching it to that, or would it be a waste of my time.

Was just recently playing with it for the 923rd time, and decided to mess with the Par-EQ. I set the Low on -6, put it on 80 hz, with a 2 narrow slope. I was finally able to achieve the SSF voltage that was mentioned in the Amp Gain setting tutorial. It looked good in numbers, but lacked horribly in output. No idea if that says anything, but I thought i'd mention it.

 
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.

 
it could just be the car. i have put my same system , same box in diffenent cars and they all sound different.my last car was a 99 sevile and the lows dropped real good but when i put it in my2004 grand cherokee the lows were lacking but in general it was louder. some cars just dont pick up some freq good.if i was you i would try a different box.

 
check your wiring over, its not hard to wire that sub up so no problem there. make sure everythings where its supposed to be on the sub and on the amp.

im still thinking its the box

 
I have a hard time believing the box is bad considering that it was "professionally" built. i think when he figures it out it will be something so stupid that he will laugh about it all. i think it has something to do with a setting of something. turning the sub out up already made it alot louder, so me thinks that something is wired wrong, or a setting is wrong causing the lack of low end.

 
I think my best bet might be to just wait for David to get back and let him tinker with it for a bit.

I might retry that -6, 2 narrow, 100 hz on the Low thing. I'm 80% sure it's something to do with that. Like I said, it looked good on numbers, but not so much on sound. So maybe if I play with the settings around there, it might turn out better.

 
I have a hard time believing the box is bad considering that it was "professionally" built. i think when he figures it out it will be something so stupid that he will laugh about it all. i think it has something to do with a setting of something. turning the sub out up already made it alot louder, so me thinks that something is wired wrong, or a setting is wrong causing the lack of low end.
some people who claim to be professionals still don't know what the hell their doing. IMHO

but ill agree with you, i think its something wired incorrectly or a settings off.

 
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