If the subs are 2 ohms each and wired parallel (+ to+, - to-) then yer actually putting a 1 ohm load on the amp. If you've been running it like this a while maybe the amp doesn't care but it is possible to cause damage. I thought u said it was a 2 ohm stable amp. The gains will not need to be up much at all to get full power out of that amp. Some amps will put out up to double power if you half the ohm load. But if not designed for that-possible damage.

 

The amp is probably under more load than usual but so far so good and it never clips.

Played with it more today and so far the only way to get balanced bass is drop the bass on the stock head unit to about -3 from half (0) and then up the gain a touch on the amp. Dont know why but anything over +1 bass on the head unit throws the bass off on ANY sub/amp combo I had including this one. Perhaps it has to do with voltage output.

 

The bass on your h/u is basically the same as your bass boost on your amp. So when you turn up the bass on your h/u, it will send a signal with more bass to your speakers, and vice versa. So if you send a weaker signal and then turn up your gain, you will be providing a cleaner signal to your subs, thus producing cleaner bass. It will also provide a less bass-y signal to your speakers for cleaner highs and mids. (Don't know if I explained that using proper technical terms, but that's the general idea anyway)

You will never find a perfect setup for every song especially if you listen to a multiple of genres. If you find a good setup for the majority of your music, use your bass adjustment on your h/u to tune for the songs which need more or less. For example, if your bass runs -6 to +6 and you have it set at -3 for most music, you should be safe playing with it from -6 to +1 or +1 without having to worry about creating too much distortion. This should give you plenty of room to take away or add more bass easily when needed.

 

I grazed through the other posts and nobody jumped on an easy one... by the looks of that amp you have, it has a remote gain. If you don't have the switch, maybe you should look into buying one. That way you can control the amp depending on what you are listening to.

 

Yup this is what its come down to. -3 on the head unit supplied a cleaner signal to the amp in the back powering the bass woofers. Only slight problem with dropping the bass to -3 on the head unit is that you lose some mids from the door speakers and to compensate I had to increase the FREQ dropoff on the woofers to "fill" the car in with a more midrange/bassy sound to the point now where its all sounding equal. It seems more balanced although the bass is not as low as before.

Its a no win situation.

 

Very good point! lol

 

Ha! So guess what the main problem was. The rear deck woofers were not in phase with the front speakers. I switched the +/- on each speaker going to the amp for the rear woofers and now the car's interior is flooded with bass as the woofers are pushing the right direction into the trunk using it as an infinite baffle as they should.

Just a simple thing like that. I all of a sudden hear mids properly and bass.