** My Frequency Graph **

[wenn_du_weinst 10+ year member]

your tweeters are highpassed at 160hz? are you sure?

 

[CAT MAN 5,000+ posts]

It looks like you've boosted some frequencies with your EQ settings. Maybe I just don't have enough headroom with my setup, but it seems like any time I try to boost a spot that is lacking, it becomes noticeably harsher than before at very high volumes. Have you noticed this with your setup?

that could also be your headunit. in my car i have 120x2 for the front stage and 60x2 on the rear on the 4.60 and i can boost the freq's i need fine. but with a bunch of the headunits i went through even when i had good power when i boosted something it over powered everything . ive noticed that alot with lower pioneer/kenwood models.

 

[Mr.SoloDolo 10+ year member]

your tweeters are highpassed at 160hz? are you sure?

Yes that's what the dial on the amplifier is tuned to

Highpass @ the dial ranges from 30hz-400hz

Should I change this? if so what to?

Check highpass of woofer (midbass, not subwoofer) and see if you can raise the tweeter level by 1-2dB in the crossover

I'm running active off the headunit. Only adjustments i can make are

Crossover: High (Midwoofers): 80hz / 12db slope

Amplifier: FULLPASS is selected

Should I change this? if so what to?

It looks like you've boosted some frequencies with your EQ settings. Maybe I just don't have enough headroom with my setup, but it seems like any time I try to boost a spot that is lacking, it becomes noticeably harsher than before at very high volumes. Have you noticed this with your setup?

The alpine imprint has boosted these signals automatically to give me a smoother curve. I can't adjust them though ;(

 

[Mr.SoloDolo 10+ year member]

ttt before i go try again. look up one post.. asking about crossover settings

 

[wenn_du_weinst 10+ year member]

what tweeters do you have that can be high passed that low and not blow? mine are at 5000hz

 

[winkychevelle 10+ year member]

i might would cross the miss a bit lower like 65-70hz and set the amp to highpass the mids at the same point as the headunit. giving you at least a 24db slope allowing you to more power at the lower frequency. and possibly get rid of the little dip on your graph. a little bit of overlap on your subs and mid will allow them to cover for each others down fall in there frequency ranges and as long as you dont overdo it you shouldnt have a problem

 

[Mr.SoloDolo 10+ year member]

what tweeters do you have that can be high passed that low and not blow? mine are at 5000hz

dda-t28's

400hz is absolute highest i can highpass these at the amp is that what you recommend?

On headunit under the EQ i set 2300hz (Q3) so i'm assuming that protects them as to why there not blown.

i might would cross the miss a bit lower like 65-70hz and set the amp to highpass the mids at the same point as the headunit. giving you at least a 24db slope allowing you to more power at the lower frequency. and possibly get rid of the little dip on your graph. a little bit of overlap on your subs and mid will allow them to cover for each others down fall in there frequency ranges and as long as you dont overdo it you shouldnt have a problem

Thank you for the direct suggestion. I'm going to try this next!

 

[winkychevelle 10+ year member]

dda-t28's400hz is absolute highest i can highpass these at the amp is that what you recommend?

On headunit under the EQ i set 2300hz (Q3) so i'm assuming that protects them as to why there not blown.

Thank you for the direct suggestion. I'm going to try this next!

no prob man i normally cross my mids at 63hz at the deck and as close as i can get on the amp, then i run my subs for 80hz and down sometimes a little lower.

and those dd tweets should be crossed around 2800hz-3000hz a good set of passive crossovers can achieve this without affecting the sound much just protecting the tweets

 

[keep_hope_alive Premium Member]

He should be able to increase the tweeter xover point in the HU. And I would defeat the crossover in the amp since the HU has it covered.

One thing to consider is that a 12dB/oct and a 18dB/oct slope will give a 180deg phase shift. This will present as all kinds of weird issues such as harshness at crossover points.

I like some overlap in my midbass and subs. With a 80Hz sub LPF the kick drum will have more impact. Then the front woofers can run down to 63Hz to keep the kick in the soundstage. 24dB/oct slopes are useful with those points. You also avoid phase shift.

 

[smgreen20 10+ year member]

You never answered KHA, do YOU like the sound?

To me, that's a nice looking curve. What I strive for is a .5 dB drop per/oct from 20Hz to 20k Hz.

I've seen a few talking about boosting and how it's harsh. I haven't seen anyone state this, so I will just so it has been said, some know, others don't and for those that don't, now they will, BUT....

When EQing,

Cut first, boost last.

 

[keep_hope_alive Premium Member]

When EQing,Cut first, boost last.

i agree 100%

 

[Mr.SoloDolo 10+ year member]

You never answered KHA, do YOU like the sound?
To me, that's a nice looking curve. What I strive for is a .5 dB drop per/oct from 20Hz to 20k Hz.

I've seen a few talking about boosting and how it's harsh. I haven't seen anyone state this, so I will just so it has been said, some know, others don't and for those that don't, now they will, BUT....

When EQing,

Cut first, boost last.

Yeah, I've always avoided boosting.

I thought it sounded decent before but now that i've imprinted it sounds GREAT.

Overall satisfied.

1. Set 50 hz at +2 on a Q of 1.52. Cut 125hz ~-2db on a Q of 1.5

3. Cut 315hz on a Q of 1

4. Set 800 the same as 315

5. Cut 2khz by ~3-4 on a Q of 1

This is a suggestion I got from another forum based on the before chart. (( A STARTING POINT ))

Might try one more time in a week or so and try these settings BEFORE I imprint.