What freq to start testing at?

When you build a new set-up, what Freq are most of you starting at to find the peak SPL in your vehicle?

gonna have to many factors to just put out a number, vehicle, enclosure, etc.

I start at 44ish, thats where my truck almost 90% of the time peaks at unless its tuned wayyy higher or something.

track 19 is a sweep hit it at about volume 5 then look at the termlab to see where it peaks at and walla nomore guessing you now know your freaqency to go all out at

sanman wrote:

track 19 is a sweep hit it at about volume 5 then look at the termlab to see where it peaks at and walla nomore guessing you now know your freaqency to go all out at

Not peak freq of system, when you build a new box you always have a starting point freq. Then you start trimming ports 1/2in or 1in at a time and check for SPL increase. Once you hit peak SPL then start dropping off you found the Peak tunning freq of vehicle with that enclosure. I was just wondering where most start tuning at?

Most will do it the right way and find their vehicle tuning first and then work to get the box to peak with the car.

mschwitz wrote:

Most will do it the right way and find their vehicle tuning first and then work to get the box to peak with the car.

Xloud!

Put a sealed box in your car than meter from 35 to 60hz, which ever is loudest score that's about ur cars res freq. And a good starting point.

Skip01 wrote:

Put a sealed box in your car than meter from 35 to 60hz, which ever is loudest score that's about ur cars res freq. And a good starting point.

good tip. i used a 10" sub in a tiny sealed box when i use to do that.

lol most already know the tuning freaquency of there cars, and thats why they use a sweep to see how close the box they just built is. I guess if you dont know then you havent done alot of research as of yet to see what your vehicles resonant freaquency is.

See I used to use the low volume sweep, but my peak at full power is normally 5 -7 notes one direction different.

Navi wrote:

See I used to use the low volume sweep, but my peak at full power is normally 5 -7 notes one direction different.

x2

i tuned my box to 39 hz, i dunno why

im not lying, the box really is tuned to 39 lol

Navi wrote:

See I used to use the low volume sweep, but my peak at full power is normally 5 -7 notes one direction different.

Yehh...same with my

Maybe not 5-7, but its def. diff

I dunno after rereding it if sanman is saying it givez you a good starting point to go from I agree. was kinda tired when I read it first time.

i dont tune it i just know where my ports need to be becuz thats where they need to be to be the loudest

hmm maybe thats why my Dung Pile is always loud at low volume and at high volume it doesnt change at all

eh cut, test.cut, test. cut, test.

Navi wrote:

See I used to use the low volume sweep, but my peak at full power is normally 5 -7 notes one direction different.

yep sir... i dont kow of hardly any car thats liked the same note on a full rip.. besides maybe somthing small with a single 12 or somthing

you guys are both reffering to testing in vans also

Power Compression"

I see a lot of answers that are single car specific. The guy needs a broad spectrum of understanding. The best answer seemed to the sweep on track 19. But, the peak fz can change a little.
The person testing needs to watch for clipping. Either with an O-scope or by paying attention to when the system stops getting louder. You don't nessicarily want to find your note at full blown clipped volume. Maybe one or two clicks below max.

sanman wrote:

you guys are both reffering to testing in vans also

ive worked with much more than just vans. your car flexs and air moves much different full tilt. And your enclosure also works different with more power etc. you should test it loud, not full tilt but at a decent volume