Complicated Crossover Speaker Question lol

[squeak9798 5,000+ posts]

sorryw hat excatley is a P9 and a RTA? Thanks lol

Pioneer P9 is a headunit and processor combo. Decently expensive, but would do everything you need I believe.

RTA is a real time analyzer. Basically plots the frequency response of your vehicle. Very helpful for tuning purposes.

 

[squeak9798 5,000+ posts]

Ok if i get a crossover my HU i bought has 6 volt preouts. Does this even matter anymore cause i think they boost the Voltage anyway off the crossover? Can i get a indash screen now with 2 volt preouts and not be worried? im running 3 amps?

Some crossovers have built in line drivers, others don't. Just depends.

But, beyond that.....there isn't a sonic difference between 6V and 2V. The only thing the higher preout voltage does is allow you to keep your gains down lower, reducing the possibility of hearing noise in your system from the equipment. If you have no noise with 2V, then using 6V isn't going really to help you any.

Tru Technology has a nice 4/5-way crossover with dual bandpass channels. I'd avoid any Audiocontrol that uses those stupid resistors packs instead of pots to adjust the xover frequency. Try tuning by ear with those resistor packs and you'll end up pulling your hair out, because in order to change the crossover point you'd need to build a new pack each time. And if you are essentially "guesstimating" the xover frequency, you can guess how many packs you'd need to build //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif So, IMHO stick with something that uses pots (knobs) or is digital.

 

[squeak9798 5,000+ posts]

6khz that CSS will start beaming a bit -- it is awesome even 60 degrees off axis upto about 2.5khz -- 3.5khz is still reasonable -- 4.5khz is more tweeter friendly... 6khz is very tweeter friendly but if you are too far axis there will be a dip near the xover frequency unless you are pretty close to on axis... -- besides an even power response creates a nice sound stage from even less than ideal locations -- that's my .02 //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

Blah...beaming. Wasn't thinking about that. Was worried more about pushing the xover point up as far as reasonably possible for the tweet & to keep as much midrange being played with the midrange. But, if he does kicks, he should be able to keep them relatively on-axis anyways. Beaming for that small of a driver shouldn't be absolutely horrid @ 6khz I wouldn't think (haven't actually looked at the specs yet).

 

[audiolife 5,000+ posts]

since when is a pot exact? lol

 

[squeak9798 5,000+ posts]

Never said it was exact. Just easier to work with //content.invisioncic.com/y282845/emoticons/tongue.gif.6130eb82179565f6db8d26d6001dcd24.gif Plus working with exact frequencies isn't as important as the sound of the settings.

 

[OlogyAudio 10+ year member]

Blah...beaming. Wasn't thinking about that. Was worried more about pushing the xover point up as far as reasonably possible for the tweet & to keep as much midrange being played with the midrange. But, if he does kicks, he should be able to keep them relatively on-axis anyways. Beaming for that small of a driver shouldn't be absolutely horrid @ 6khz I wouldn't think (haven't actually looked at the specs yet).

It is darn near perfect 60 degrees off axis till 2.5khz //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif -- 30 degrees off axis @ ~4khz is -- acceptable...

Even power response does wonders to the sound quality //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif makes imaging a breeze -- Granted you get more reflections -- but there are smoother transitions in the time domain between the first and second reflections due to different angles -- as well as phase orientation of the reflected sound waves -- Did I mention I spent quite some time analyzing the car audio environment ? //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif -- Don't just be concerned with flat on axis -- it needs to be flat far off axis as well... or produce very little spl off axis (more ideal but not everyone can have planar devices in their cars)

 

[audiolife 5,000+ posts]

Never said it was exact. Just easier to work with //content.invisioncic.com/y282845/emoticons/tongue.gif.6130eb82179565f6db8d26d6001dcd24.gif Plus working with exact frequencies isn't as important as the sound of the settings.

anything analog can change with the weather

 

[mega1268 10+ year member]

yea i lost u guys with that... lol so theres no audible diffrence...... and whats on access and off axis..... and who makes this real time analyzer and this other thing..... and some prices may help.

 

[Bake 10+ year member]

Yeah, those resistor packs in Audio Control stuff are a pain in the a$$. Good processors but not the easiest to set up.

 

[squeak9798 5,000+ posts]

and whats on access and off axis.....

On axis = speakers aimed towards you

Off axis = speakers not aimed at you

and who makes this real time analyzer

They are fairly expensive. If you wanted access to one, your best bet would be to check with local shops and see if they have any in the install bay that they'd allow you to use (rent) for a certain period of time.

 

[ngsm13 5,000+ posts]

Loser, you're doing what I was planning on doing...but decided not to do b/c it was too much of a hassle //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif

NG

 

[mega1268 10+ year member]

yea but u said u were in love witht he setup you have now....... how will it be without the 4.5. Ology said they get really sloppy after 1khz.

 

[mega1268 10+ year member]

o and whats the best position for tweeters? In the door by the other speakers facing the person or flush mounted. Is keeping it close the teh speaker good or will it sound diffrent if i mount it in the A piller.

 

[squeak9798 5,000+ posts]

Unless you are crossing it over very high (6-7khz+), I'd keep it as close to the midrange as possible.