Perfect_prefect is a MOFO, thanks alot Garrett

[kryptonitewhite 1]

Yup, I think it's worthy of a new thread. Tomorrow I have to lug this PC out into the hot muggy humidity again, cuz as if it wasn't enough that the guy made me realize I could/should get so much more out of my tweeters with his Memphis 5.25 coaxials shredding my drums, but he went to bragging that his Anarchys and/or SA pro 8's could prolly do well in the 129dB class. So for the fun of it I went out and dropped the PXA-H701's from 50Hz to 25Hz, still 30dB/oct, left the Kicker at 50Hz 12dB/oct.... cuz I keep thinking about how the REW sweeps showed a cliff dive at 125Hz peaking again at 65Hz for another dive. I can turn them up to the same volume with no clipping, no excursion issues, but it sounds even better.

Sigh. Prefect, youre right, do NOT get REW! It never ever ends once you do!

KW

Garrett's an ASS hat.

[kryptonitewhite 1]

forgot to post the old REW sweep

[kryptonitewhite 1]

Alright, went out to listen sum more, dropped Alpine to 20Hz... still no strain just more extention. Then put the Kickers to full pass. still no strain even more extention. Dropped the Alpine from 30dB/oct to 24dB, tweeter too as the tweet was on 30dB..all the rest 24. Brought the SX500/2 from 8.2...kHz to 8.5...kHz.

So I can have the Kicker crossovers off and the Alpine all the way down at 20Hz 24dB/oct and not a hint of trouble, just sounds like I have a 10" in there. When i was done... all of 10 minutes... the Kicker 850.4 fans were in high gear. So I could leave them, but when the subs are in it will just mask them. But for comps, that would be some serious UpFrontBass. Do I just pick a number, 50Hz, 63Hz, or 80Hz... the usual points? Run some REW sweeps tomorrow and see what looks best??

[kryptonitewhite 1]

I think I will switch the Kicker back on, 50Hz 12dB, and set the Alpine the same for a total of 24dB @ 50Hz, the tweeters I will try 12dB @ 16kHz on the Kicker and 12dB @ 8kHz on the Alpine as I want the FR sloped. I can most likely raise the gains on the 850.4s a little since I could probably run them crossoverless at the levels they are at now, or leave the gains and hope adding crossover back in keeps them from getting as hot as fast?

[kryptonitewhite 1]

B fell asleep early, redid crossovers as follows:

Kicker 850.4s 50Hz 12dB/oct Alpine 100Hz 12dB/oct

SX500/2 6dB/oct 16kHz Alpine 18dB/oct 8kHz

midbass: I hate that huge valley from 55Hz to 125Hz! I tried running Kicker 50Hz 12dB and Alpine 50Hz 12dB for 24dB, but it was a huge waste...so I brought the Alpine up to 100 and brought the gains on the 850.4s up.... much much better. Dropped to 80Hz, no good.

Midrange: has it's sharp fall at 400Hz as desired and the sharp fall at 8kHz as previousely measured to determine tweets crossover.

Tweets: blend much much better... not as loud, not as active, but the steep slope at 8kHz was too much. a gentle slope of 6dB way up high at 16kHz softens that edge, 18dB @ 8kHz to make it solid where the midrange takes over.

All 3 overlaped.

volume at 5, 10, 15, and 20

I didnt like how the midbasses are basically a series of spikes. It's not a plateau that is flat at the top for a ways and rolls off nicely at both ends. I tried raising them to 500Hz to widen it a bit, snapped a shot of them by themselves but didnt save the combined responce with the midranges on... there was a huge dip just above 400Hz.

pretty damn good at 55Hz

but that null at 80Hz kills it

[kryptonitewhite 1]

Im going to go out and run midbass sweeps... crossovers off, then 24dB alpine only steping up in increments, find out what these gaps are from

[kryptonitewhite 1]

Alright, these graphs keep telling me what my ears have been since day one. Something is wrong. While researching, before purchasing, people were using a single pair of these Extremis down to 50Hz with a single pair of tweeters... 2 way... all 4 drivers off a KX650.4... 2 channels for the Extremis, 2 channels for the tweets. So With 4 Extremis covering a much smaller range, going 3-way with a midrange, and 2 850.4s just for the Extremis... I should be slaughtering the midbass... but I am NOT.

I am very, very irritated right now. Well, now I am a little better, I changed everything again, but i'll get there in a minute. That huge dip from 60Hz-140Hz is there even without ANY crossover.

no hp

Then I tried with the slope at 50Hz, no slope, 6dB, 12, 18, 24, then 30dB slope

Then I tried 24dB slope 50Hz, 56Hz,63Hz,71Hz,80Hz,90Hz,then 100Hz

I left it at 24dB 100Hz volume 15, 18, then 20

I got mad, did some critical listening, I am pleased for the moment with:

Tweeters SX500/2 12dB @ 16kHz Alpine 12dB @ 8kHz

850.4's 12dB @ 100Hz and Alpine 30dB @ 100Hz. So I have no Up Front Bass, but i don't care... my subs would drown them out anyway. So they are back to hitting hard and playing loud instead of sounding really awesome without subs but not as loud.

[Sencheezy 689]

Why doesn't no one post on your sfuff? Nor any subscribers on your youtube page?

[ssh 924]

Reminds me when I had my dips,

I changed from bessel to butterworth filtering, got better at 10k, worse at 4k, crossed a little differently, moved the spikes around, got it better. Decided it wasn't all that important, got a few beers saw a movie, great day actually.

Then I switched amps with 1% better efficiency and slightly lower THD, saw open season 2. Got everything back on an RTA for some measurements and decided I watched Open Season 2 but forgot to see the first one, silly me.

Changed from kicker 8awg wire to stinger 8awg wire, the audible difference is amazing, much less clipping, can't hear as much bottoming out thank god.

So...

I'm sorry but I just had to.

[steveo50 3]

Well this post is a little over my head idk wtf your talking about...but I'm just ignorant to this kind of thing...congrats for a higher understanding of car audio lol

[kryptonitewhite 1]

Well this post is a little over my head idk wtf your talking about...but I'm just ignorant to this kind of thing...congrats for a higher understanding of car audio lol

CUBDENNO SAVES THE DAY...AGAIN!

I played with the transition from Extremis to FRs for a bit, Extremis are 250Hz 24dB and FRs are 200Hz 30dB and 12dB... that allowd me to turn the Extremis higher... better and better and better! THANK YOU!

[kryptonitewhite 1]

Why doesn't no one post on your sfuff? Nor any subscribers on your youtube page?

you keep posting.

you must be on the wrong youtube page.

[kryptonitewhite 1]

Reminds me when I had my dips,

I changed from bessel to butterworth filtering, got better at 10k, worse at 4k, crossed a little differently, moved the spikes around, got it better. Decided it wasn't all that important, got a few beers saw a movie, great day actually.

Then I switched amps with 1% better efficiency and slightly lower THD, saw open season 2. Got everything back on an RTA for some measurements and decided I watched Open Season 2 but forgot to see the first one, silly me.

Changed from kicker 8awg wire to stinger 8awg wire, the audible difference is amazing, much less clipping, can't hear as much bottoming out thank god.

So...

I'm sorry but I just had to.

The idea is, example, help me fix that dip from 60Hz-140Hz... and if you can't help, jokes are fine too... I'm full of them myself, I dishem, I takem. I always enjoy your presence, youre more kind than most