Tuning help

[Rgchnl]

So i have a sundown x10 d2 v2 on a ct sounds 1400 on my mustang, and i decided to mess with the amp to see if i can make it sounds better. I saw an article online on how to tune it by ear to 35 hz and i went ahead and did it. The bass sounds tighter than before, cleaner i guess. But i kind of liked how it sounded before. It was flappier, it made more noise. Ive been messing with the amp trying to get it back to how it used to be but for some reason i cant get to it. All i moved was the gain and the bass. Any recommendations?

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[Vocaloid]

My guess is that it had something to do with the bass boost. I would start by backing down the gain, picking any arbitrary bass boost setting, then bring the gain back up. Gauge where you are at, then try it again with a little more bass boost and see if it gets it closer to where you were at. Or maybe you will find it was with less bass boost, but the same process will get you back there eventually. It depends where the bass boost is actually boosting. If you're running a ported box especially, and bass boost is boosting below the tuning frequency of your box, it will absolutely flop around more the more you throw at it below what the port is tuned to. Also double check that you didn't bump the crossover knob too. Taking or adding more of the music band could be screwing with the overall sound you're getting.

I know what you mean though. I had a pair of cheap 10's once in a huge box... took up the whole hatch in a hatchback. Probably terrible for power handling. But I think they were almost handling like they were in free-air rather than a box, moved all the way to the mechanical xmax I'm sure, but the rounded huge thud they made back there (even if a bit distorted) brought **** eating grins to my face every time I turned it on.

There are places for tight, clean bass for sure: I've experimented with using smaller drivers, and sealed and small bandpass designs to get there. But I don't like it that way in my vehicles!

 

[macsdad 10+ year member]

Dude you do not want to use bass boost at all, it only boosts a narrow band, and will always introduce distortion in your signal, so no bass boost, not on the amp nor you source unit dude. I have been wondering why they all have that feature anyway. If the amp that you have isn't doing what you need, get a bigger amp, that is why most of us over power, gives you what we like to call head room, amp not struggling to produce what its design can't support.

 

[Rgchnl]

Thanks for the input guys. Ill make sure to turn the bass boost and gain all the way down amd bump up the gain alone to see if i can get to how it was before. The audio shop i got it done at tuned it by ear. I heard another local shop tunes it the "right way" with distortion meters and all that stuff. He charges $25 per amp. I'm probably gonna take the car to him to do the big 3 and go ahead and tune the ct

 

[Buck 5,000+ posts]

Depending on tuning, your subsonic filter will take out notes below whatever frequency you set it at, so 35 hz. Low pass will take out frequencies above. So depending on what your box is, so you're tuned to 35 hz. Put your subsonic around 30 hz and your low pass around 70 hz or so. Don't mess with the bass boost, keep that at 0