Really good SQ for a Type R

[mlstrass 5,000+ posts]

As mentioned, you need to model some enclosures/tuning freq's in winisd and shoot for the flattest response with no peaks or valleys. That "should" have the best overall SQ, but will more than likely be down a few dB from a higher tuned fart box.

Personally I'd ditch the R and get something that has more of a rep for SQ if that's what you're really after...

 

[PV Audio 5,000+ posts]

your not necessarily doing to lose SQ in a ported box, just dont tune it to like 20hz hehe. if designed and built right, a ported box will sound just as good as a sealed, but as you said, could possibly differ on sharp burps such as metal.

I have a subwoofer tuned to 17hz and it's the cleanest I've ever heard.

 

[Immacomputer 10+ year member]

Everybody who says that Type-Rs cannot perform well in a sealed enclosure are wrong. It may not be what they want but it will perform very nice in a sealed enclosure.

You may like it in a smaller sealed enclosure with a net volume of about .75-1.0 cubic feet.

If you want more output, you could also go ported and it will still be able to sound nice but the frequency response will be different. 1.75 cubes tuned to 28hz should be a nice SQ alternative that will keep up just fine with any double bass you throw at it.

I could design either enclosure for you if you like, just tell me which one you would prefer.

The sealed enclosure will have a nice transient response and should blend well with your front speakers. It won't have the same low end output that the ported enclosure will have though. The ported enclosure should have nice transient response as well but will have more output from about 25-40hz. And yes, there is material in rock music that low, it's not just for rap like people think.

 

[PSturmer 10+ year member]

Everybody who says that Type-Rs cannot perform well in a sealed enclosure are wrong. It may not be what they want but it will perform very nice in a sealed enclosure.
You may like it in a smaller sealed enclosure with a net volume of about .75-1.0 cubic feet.

If you want more output, you could also go ported and it will still be able to sound nice but the frequency response will be different. 1.75 cubes tuned to 28hz should be a nice SQ alternative that will keep up just fine with any double bass you throw at it.

I could design either enclosure for you if you like, just tell me which one you would prefer.

The sealed enclosure will have a nice transient response and should blend well with your front speakers. It won't have the same low end output that the ported enclosure will have though. The ported enclosure should have nice transient response as well but will have more output from about 25-40hz. And yes, there is material in rock music that low, it's not just for rap like people think.

actually the type R is no good ported. i have a one cubic foot box i use for testing.

 

[PSturmer 10+ year member]

make sure you dont tune it to low. i made an enclosure for a friend and he wanted sq and i tuned it to 30. he has a 15 R. it sounded good but it didnt get loud. i recently made the same enclosure @ 34hz and what a difference did it make in output.

 

[Immacomputer 10+ year member]

actually the type R is no good ported. i have a one cubic foot box i use for testing.

You mean sealed? You may not like it sealed but that does not mean it cannot sound nice sealed for somebody who has different tastes than you.

I have heard many Type R setups with some sealed and some ported. While I prefer the sound of them ported, they can still perform well sealed.

 

[HighOnFire 10+ year member]

Imma, def. if you could give me some plans based on all that I've said it'd be awesome. Go for whatever you think is best but I want it ported.

I had my R in a tiny 1 cube box and it didnt sound to awesome, it was just too tight and I missed the lows from a ported box when I needed them. Metal is always going to sound not to phenominal with subs so I've learned to deal with it and I can usually EQ it out if I get frustrated so its cool.

I listen to other stuff, but the bulk of what I listen to is metal, however I do

Thanks to everyone for there input. I Hope this turns out well. Imma PM me I guess with the plans!

 

[T3mpest 10+ year member]

Imma, def. if you could give me some plans based on all that I've said it'd be awesome. Go for whatever you think is best but I want it ported.
I had my R in a tiny 1 cube box and it didnt sound to awesome, it was just too tight and I missed the lows from a ported box when I needed them. Metal is always going to sound not to phenominal with subs so I've learned to deal with it and I can usually EQ it out if I get frustrated so its cool.

I listen to other stuff, but the bulk of what I listen to is metal, however I do

Thanks to everyone for there input. I Hope this turns out well. Imma PM me I guess with the plans!

That means your doing something wrong

 

[PV Audio 5,000+ posts]

actually the type R is no good ported. i have a one cubic foot box i use for testing.

Um...//content.invisioncic.com/y282845/emoticons/eyebrow.gif.fe2c18d8720fe8c7eaed347b21ea05a5.gif

 

[Immacomputer 10+ year member]

Try this one on for dimensions:

If it won't fit, let me know your max dimensions.

 

[req 5,000+ posts]

your not necessarily doing to lose SQ in a ported box, just dont tune it to like 20hz hehe. if designed and built right, a ported box will sound just as good as a sealed, but as you said, could possibly differ on sharp burps such as metal.

yes actually.

yes, yes a ported box will always sound different. well. i should not say always, because a 6th order bandpass is technically a ported box.

so in rudementry format, lets contemplate.

sealed; usually exibits a smooth rolloff at lower octaves and little to no peaks in the frequecny response. in theory, usually can play lower frequencies without causing the driver harm. so in total, usually a better blend to any stereo. but not suited for efficent SPL in a daily driver.

ported; usually exibits quite large peaks around and above Fb. rolls off quite a bit faster at lower octaves starting just below Fb. in theory, below Fb, driver is not capable of lots of power because the excursion can (and usually will) hit its limits, and will not play these frequencies very loud. thus the need for a subsonic filter. these boxes get louder than sealed.

so thats why - IN A NORMAL DAILY DRIVER - (excluding all abnormal conditions\people\weird ideas to be brought forth) a sealed box will yield better SOUND QUALITY

because sound quality is not JUST how good it sounds to you, but how good it sounds to pink noise and a RTA. flat response = sq, peaky response = spl.

there you have it.

ported box = peaky response = suited for people who like more bass than anything and spl

sealed box = smooth low end rolloff = suited for a balanced stereo = easier for sq

THERE ARE EXCEPTIONS - but we are talking about a fucking alpine type r. so get over it.

 

[rpfuror 10+ year member]

THERE ARE EXCEPTIONS - but we are talking about a fu*ing alpine type r. so get over it.

That was what I was getting at many posts ago... just didn't phrase it so elegantly.

 

[azimuth 5,000+ posts]

Everybody who says that Type-Rs cannot perform well in a sealed enclosure are wrong. It may not be what they want but it will perform very nice in a sealed enclosure.
You may like it in a smaller sealed enclosure with a net volume of about .75-1.0 cubic feet.

If you want more output, you could also go ported and it will still be able to sound nice but the frequency response will be different. 1.75 cubes tuned to 28hz should be a nice SQ alternative that will keep up just fine with any double bass you throw at it.

I could design either enclosure for you if you like, just tell me which one you would prefer.

The sealed enclosure will have a nice transient response and should blend well with your front speakers. It won't have the same low end output that the ported enclosure will have though. The ported enclosure should have nice transient response as well but will have more output from about 25-40hz. And yes, there is material in rock music that low, it's not just for rap like people think.

^^i agree here^^ i have 2 sealed in just a little under 1 cube a piece and they sound good and get pretty loud. i would probably go with about 1.2 a piece in hind sight, but 1 cube does fairly well. sounds good with any kind of music. i listen to alot of metal and some hip hop. i'm satisfied.

 

[Immacomputer 10+ year member]

THERE ARE EXCEPTIONS - but we are talking about a fucking alpine type r. so get over it.

Yep, my IDQ RTAs better with a ported enclosure than it does sealed. Its low end is really lacking sealed. The poster may be experiencing the same thing with the Type-R when he had it sealed.

Also, a small sealed box can be very peaky with many subs.

 

[PSturmer 10+ year member]

actually the type R is no good ported. i have a one cubic foot box i use for testing.

lol i mean there no good sealed.