It sounds great...just have to turn the output up from +1 to +3 or +5. I have them powered by the 1000.1 alpine pdx. Dont know how much it is actually pushing but it sounds awesome.

 

That's good to hear.. probably will end up with 2. Itd be nice if there was enough room under these dang seats to do 2 ported...

 

Yeah..limited space is a mf'r.
I do love the box under the seat and out of hte way though. Just have to find a place to re-mount the jack.....

 

Check the phase on the subs. A very popular setting is phase swapped as it pulls the subs into the front stage and blends them well, but at the expense of output

 

Umm..not to sound dumb but what is the phase?? I will scope out the amp in the am. :o

 

Reversing the signal. Instead of the center pin on the RCA being + its instead -. (Not exact due to AC current, but the idea is there.)

 

Hmmm..he did not mess with the RCA's when he tuned it, just the polyfill in the box and the settings on the amp.

That is good info to know you guys. Thax

 

There are a ton of things that could have changed. If he tuned it he could have changed anything at any point in the system.

IMO polyfill wont really affect the volume of the bass, just the quality of it. It should make it less boomy and sound tighter.

If there isn't as much bass but everything is working that generally means things are out of phase as was suggested before. Phase is a funny concept because there is no hard and fast rule. Generally you start with everything in phase. Occasionally though some cars react funny to the bass waves and it actually sounds better with the subs out of phase.

Phase refers to how the speaker moves in accordance to the sound. Speakers make sound by vibrating back and forth. Power one way the speaker moves in, power the other it moves out. You can hook up an amp with the + and - backwards and the speaker will still work 100% fine.

The + and - on speakers helps to indicate phase. When you have more than one speaker in a system you want them both to be operating in the same phase as one another. This means they both push out and pull in at the same time (not one pulling as the other is pushing). This way the bass adds together rather than tends to cancel the other out. Ideally you want all the subs and the regular speakers to all be in the same phase.

Now occasionally it makes sense and sounds better to have the subs out of phase with the regular speakers, but not too often. Many new decks have an option in the deck to flip the phase. This affects only the sub RCAs. This was mentioned earlier as something to check. The other thing is it could simply be wired out of phase between the amp and the subs (inside or outside the box).

 

Cool...great info. I love the amount of knowledge to find here. The only things he altered the the amp settings and the polyfill. I am taking a look at it as we speak. I will look what settings are there and brb.

 

I start the truck and turn on the radio and it sounds alright but not hitting like it used to. I pull passenger seat forward and the Neg. RCA cable is half unplugged. Put it back in and all be damned it sounded great...a little too much. Ok....so I take the cover off of the controls and here is the pic of the settings. GOnna turn the Sub output down on the deck and see how it sits then.

The Sub sonic filter is off. How could he not notice the rca was not plugged in all the way. It's friggin night and day.

 

Well I turned the Gain down to below 1/2 where I had it before the polyfil and it still sounds great! Cant really tell the difference than before the fill. Cannot believe it was just the RCA Cable. WTF>

 

sometimes its just the little things that we miss that make all the diff.

 

Yeah, live and lear. And learned a ton of struff from you guys...Thanx!