So after gain is set i imagin i should stay away from any further adjustments on the HU that increase the subs volume eh? Figured as much. Other then that its a great sub. But i would imagine, as much as it pains me to say this, you guys are probably right. Gotta be better subs out there. Or maybe a different enclosures will easily give me what i look for, perhaps a ported enclosure next time?
I also never heard of setting the sw lvl up high in addition to set gain? Is that so that when i decide to turn it up, it will have already been at its highest when matching HU voltage?
If you are willing to listen, you might learn a lot and not get screwed over by car toys salesman ever again... money straight down the drain for a very tough lesson bud but its a lesson some people need to learn. You could have gotten some extreme results with the amount of money you paid.
your head unit has a set pre-out voltage. Your EQ, sub level, loudness, loudness settings ALL affect the pre-out voltage. However, only sub level will affect the signal strength only and its a means to reach your head unit's clean pre-out voltage. While the EQ, loudness and bass boost both affect signal strength BUT they add more things to the signal which can easily result in distortion and clipping of the signal which results in quick rapid heat build up which leads to equipment death.
So if your head unit is 4 volt pre-out, you need your head unit volume up very high along with the sub level at max in order for you to reach that 4 volt pre out. Sub level is the only thing you can use on the head unit relating to bass aside from the low pass filters.
The bass boost on the amp is also a 45hz boost which distorts signal. The multi-meter method is extremely flawed because music is not a test tone and setting it based on a test tone either pigeonholes you out of output or FKs you over and clips you. For you it made you lose waaay too much output because you dont know the proper test tone to use.
The proper and veteran way of setting gains is ACTIVE Gain setting which means play music, learn all your song's basslines by heart because bass recording levels is different with EVERY song which means every song needs a different volume/sub level setting. Play music at the highest clean volume level, raise the gain till it stops getting loud, then back it off a few notches. Then its all based on your ability to memorize the bass strengths in each song and adjust on the go AKA Active setting. Theres never a oh i turn it up to 32 out of 35 and its always gonna be good. sometimes it'll be 34, some times it'll be 29. it can vary that differently based on recording and genre.
Do 10 minute listening tests and feel for HEAT in both the amp and sub. If its hot, turn either the gain or the sub level down a bit more, if its ice cold, you have a lot left in the tank. If its slightly warm, you are at a good spot.
i can tell by how bad the sub is struggling to play the upper end of that song.i can also tell its way beyond its linear throw.
like you can see stuff with the low FPS and quality a phone camera can capture lmfaooo. first your golden ears, now you got golden eyes that see through recordings too... god has blessed you with all the right body parts huh? but yeah after hearing my team ascendant 18s, there's a huge gap in sound quality vs the soundqubed hdcs lol. I have a bunch of crap in the front chamber right now and it affected the tuning soo much that i can play up to 100hz HAHAHA gnarly.