Ported SQ enclosure for Death Penalty 21?

[mjf 10+ year member]

you can get flat response down to 20hz with a ported sub tuned to 30hz //content.invisioncic.com/y282845/emoticons/fyi.gif.9f1f679348da7204ce960cfc74bca8e0.gif no need to tune in the twenties.

if you're trying to tell me thats flat you're crazy.

 

[tcguy85 10+ year member]

if you're trying to tell me thats flat you're crazy.

how is that not flat?

it's +/-3db from 15 - 50hz then rolls off.

it's +/-1db from 19 - 40hz then rolls off.

i'd say thats pretty flat really.

once the mids come in, it gives a relatively smooth and strong response down low.

anyway, my point was that you can get down into the 20's without tuning that low. plus, what music has stuff that low anyway.

 

[Bigbear 10+ year member]

jeeeezy =D

 

[mlstrass 5,000+ posts]

Call IA on Monday and get your answer.

 

[Freelander 10+ year member]

I think he is wanting recommendations on a good DAILY enclosure. Something that sounds relatively good on music not just for burping.

 

[mjf 10+ year member]

how is that not flat?
it's +/-3db from 15 - 50hz then rolls off.

it's +/-1db from 19 - 40hz then rolls off.

i'd say thats pretty flat really.

once the mids come in, it gives a relatively smooth and strong response down low.

anyway, my point was that you can get down into the 20's without tuning that low. plus, what music has stuff that low anyway.

alot of music does, classical, jazz, quite a bit.

and the -4 @50 seems a bit too far out of place.

my point was, tuning low, helps pick up the low end which generally can give you a flat response above. you wont get the normal peak thats usually seen 30+ but the response will be nice and flat, but of course, would be completely different in car, sooooooooooo cant really say much aside from all theoreticals.

 

[audioholic 5,000+ posts]

This thread would have gone alot smoother if the OP would have just said SQL instead of SQ.

 

[tcguy85 10+ year member]

alot of music does, classical, jazz, quite a bit.
and the -4 @50 seems a bit too far out of place.

my point was, tuning low, helps pick up the low end which generally can give you a flat response above. you wont get the normal peak thats usually seen 30+ but the response will be nice and flat, but of course, would be completely different in car, sooooooooooo cant really say much aside from all theoreticals.

yea -4 @ 50hz seems like it drops off but like i said, once the mids come into play it smooths it right out.

anyway, that 1st graph was the bass response in my car with the sunroof open. it's quite a bit different with it shut but doesn't extend quite so low. here is the comparison for open and shut.

 

[mjf 10+ year member]

yea -4 @ 50hz seems like it drops off but like i said, once the mids come into play it smooths it right out.

anyway, that 1st graph was the bass response in my car with the sunroof open. it's quite a bit different with it shut but doesn't extend quite so low. here is the comparison for open and shut.

sharp peak at 40hz there.