Crossing L/R speakers diff?

[Jscoyne2]

HU:80PRS
Front stage amp: sundown 150.4
Hertz ESK 2 way components
substage/amp doesnt matter.


Left and right speakers will have different natural roll off points. Not by a ton but maybe 1-2khz.

What kind of issues would i run into by having a different crossover point on the left driver vs the right driver.

Also. i have these installed inline with my tweeters because i like that extra protection. If i was aiming for a -24 db slope(so i dont have any phase change), should i have my slopes on my tweeters be at 18? Assuming the -18+-6=-24.

https://www.parts-express.com/bass-s...00-hz--266-215

[reedal]

Out of curiosity, why have the crossovers set different per a side? I don't have any input about the effects because I don't know, I just want to know why?

[White Lightning]

Unless you are into advanced notch EQ setups for extreme Stage and Image with full 32 bands of EQ on eash side of your vehicle ... I see no need for this.

Sounds to me like an appetite for disaster.

How ever ... I love the ones that trial and error for themselves !!!

Set it up and tell us what you think ...

[Kyblack76]

why would you cut one off from the other?

if anything, TA it......

i dont get the seperate cut offs ???

someone school me?

[Jscoyne2]

Out of curiosity, why have the crossovers set different per a side? I don't have any input about the effects because I don't know, I just want to know why?

Because the left door speaker and the right door speaker are at different axis angles to your ear. so they will have different natural roll off points. From what ive been taught, natural roll off points is the pristine place to X-over.

[Jscoyne2]

Unless you are into advanced notch EQ setups for extreme Stage and Image with full 32 bands of EQ on eash side of your vehicle ... I see no need for this.

Sounds to me like an appetite for disaster.

How ever ... I love the ones that trial and error for themselves !!!

Set it up and tell us what you think ...

Well i do have full phase control over every driver, 16band L/R EQ, and a ton of time on my hands so...

[reedal]

Or, as kylar said. TA (time alignment), which makes much more sense to me than separate crossover points. I would like to understand your method though? what equipment are you using to find where your roll off is?

[reedal]

Not saying it won't work, I just don't understand it and would like to

[Jscoyne2]

So heres a graph of freq response for my door speakers. This of course will change when you actually put it in a car because of acoustics and a million different things...but for the sake of explaining this work.

Orange line would be if my door speakers were pointed directly at me. grey line being 45 Degrees off axis. Id say more driver side is probably even more than 45 degrees but my passenger side isnt..or is atleast somewhere in the 40-50 degree range.

Your driver side and passenger side are going to have different freq responses and thus need different eq'ing and different crossover points to deal with roll off and other acoustics things.


Im not a total beginner but im not anything near more than that. This is all what i feel make sense. Kinda asking for someone will more experience than i.

Time alignment would do nothing except maybe mess with phase a little and change my stage. Honestly my current set up and stage is just fantastic but always looking to learn more.

[Jscoyne2]

Or, as kylar said. TA (time alignment), which makes much more sense to me than separate crossover points. I would like to understand your method though? what equipment are you using to find where your roll off is?

Phone rta, pink noise. Not the most accurate by any means but not totally off.