eric-b

I've tried a few different grounds, cleaned and prepped the metal, they looked solid. I think the intermittent sound is a different issue now. It's with all music (Bluetooth, tuner, etc) and all speakers, so possibly a connection at the headunit? The headunit and stock speakers were working fine yesterday even with the subwoofer issue, so I probably messed something up. I'm pretty bad at this stuff.

So I put it to a better ground...and now all the music, not just the sub, is choppy like a poor signal.

I'll check the sub wiring but I'm pretty sure I did that part right. With a dual 2ohm you go positive-positive and negative-negative for a final 1ohm correct? The gains on the amp doesn't make much of a difference. I moved it around from 1/4 to about 3/4 and not a real noticeable change, which made me think it may be related to the amp ground or something along those lines.

More amateur audio questions lol... Hooked everything up and it's playing very quiet. Amp turns on fine and I can hear the sub playing along with the music as it should, but it's very weak. I'm thinking possibly need a better ground for the amplifier. Running brand new JL RCA's so that shouldn't be a problem. I adjusted the staging and EQ on the head-unit and it helped a little bit, but the stock door speakers still are stronger and obviously that shouldn't be the case.

Used a drill bit by hand to poke through the bottom and then threaded a screw in the top to make it a little wider. Should be good to go now, appreciate the help guys. Just wanted a confirmation so I don't ruin an expensive sub!

yea I bought this about 3 years ago and never tried to install it until now. I'll poke through if I have to, just seems a little sketchy.. never had to do that with other subs. I posted pictures in my member gallery. I don't know if you guys can see that, not real familiar with the forums here.

Well anyways since I need more posts, the sub is the 12" BTL N2 from a few years ago. It was still in plastic up until today. Dual 2ohm wired to 1ohm. Head-unit is a Pioneer DEH-80PRS, love it so far but still getting used to all the features. Amp is an Elemental Designs Nine.1 (1200w rms@1ohm) Gonna see how that sounds for awhile and possibly upgrade later. For the box I used the cutsheets from here to make the recommended vented enclosure.

It's not letting me post pictures, how many posts do you need?

So I took the gasket off and there are definitely no holes showing on top. Do you really need to poke through all of them on the bottom? Doesn't seem right. I put some pressure through the bottom hole with a screwdriver but it seemed like it would need a drill to break through. It's awfully close to the sub and this just seems odd.

The gasket has holes and there are holes in the underside of the metal surround that don't go all the way through. It doesn't look like there are holes in the top of the surround even when I peel back the rubber gasket.

Ok I'm sure some will get a kick out of this, but this is my first time with an Fi sub. I have everything wired up and just have to screw the sub into the box, but I'm not sure how to go about doing that. It looks like the whole surround is metal with rubber on top. There are some partial holes on the bottom of the metal but they don't match up with anything on top. I'm just a little confused because I thought this would be the easiest part, and I figured I would ask before I go about damaging the sub with a drill. Sub is 12" BTL N2. I've had it for years and never got around to installing it until now.

Alright...decided to go with the 12" BTL N2, fully loaded daily. Can't wait to get it! Went with the 12 strictly for space purposes, 4-5 cubes isn't realistic with my current setup, and I still would like to use my trunk on occasion. Gonna build a 2.5 cu. ft. 32hz box and see how it does with 1200w for awhile. Anyone have specs for an enclosure this size?

Alright...decided to go with the 12" BTL N2, fully loaded daily. Can't wait to get it! Went with the 12 strictly for space purposes, 4-5 cubes isn't realistic with my current setup, and I still would like to use my trunk on occasion. Gonna build a 2.5 cu. ft. 32hz box and see how it does with 1200w for awhile. Anyone have specs for an enclosure this size?

I have the materials from my previous system, just a new car now. I had 2 12's off this amp in a single-cab truck. Got rid of the subs and kept the amp, wires, farad cap, optima, etc.