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Looking for below 20hz extension for a 1300 cu-ft room, up to $1500~

post #1 of 40
Thread Starter 
Hi all,

I'm looking for a new sub for my room, which is 1300 cubic feet. I'm willing to spend up to $1500 (can go a bit higher but would prefer not to) but would like to only spend what I need to to get the job done.

Usage is going to be 100% movies and games, no concern about music. I'm not going to be blasting the subwoofer, plus I'm hoping the small room size will make output a nonconcern for any sub $1k+. The only consideration I'm going for is as much output in the ultra deep as possible, such as in 10Hz and maybe even lower into the single digits if that's possible in this price range.

So far, I was looking at these:

Rythmik F25 | FV15HP | F15HP

PSA XS30

Any other suggestions? Thus far my frontrunners are PSA XS30 (love the price), and, if that can't get the job done, maybe the Rythmik F25 whenever that's available.
post #2 of 40
Any of those Rythmiks would be fine and probably overkill in that room. An F12 or LV12 should do fine. The FR is roughly the same among the sealed models, just output varies. I'd get an F12 and spend the difference on movies or something else. Or, better yet, give it to me... smile.gif
post #3 of 40
I get lost regarding the part of, sub 10Hz. confused.gif

Sub 10Hz? I don't think any of the subs you listed will give usable, sub 10Hz output.
post #4 of 40
Sealed room??
post #5 of 40
I don't believe the F25 from Rythmik is available yet, still being developed with the new 800watt amp.
I have the XS30, and with room gain Tom V from PSA figured I would have output all the way down to about 8hz after looking at detailed drawings of my room along with where I planned on placing the subs. And I would have to say the way things feel during some movies I would have to believe him. I still need to buy an Omnimic setup and take some room measurements to confirm for sure but it's pretty awesome so far.

For me it would be between the FV15HP and the XS30. I haven't seen numbers on the F15HP but I don't think it would have performance advantage over the XS30. The FV15HP was also on my short list when I was going to purchase new subs.
post #6 of 40
Svs pb-12nsd?
That may give you what you want
post #7 of 40
If big is not a concerned(and ugly) then your best option is a used DTS-10 in the classified ads. Next would be a used Captivator in the classified ads. The DTS-10 will give you the 10hz output you need and the Cap in 17hz tune will give you the 15hz and up output needed. A simple EP-4000 used could drive either to crazy levels.
post #8 of 40
In his ~2,025 cu.ft. basement (carpet over concrete) HT room, my buddy gets a tremendous amount of clean output, as well as flat extension down to 10Hz, from his dual ChaseHT SS-18.1 passive subs ($500/ea.) w/ Dayton SA1000 amp ($400). In your room - which is over 30% smaller than his - a similar set-up should offer similar, if not better, performance.
post #9 of 40
Quote:
Originally Posted by Hygienist View Post

Hi all,

I'm looking for a new sub for my room, which is 1300 cubic feet. I'm willing to spend up to $1500 (can go a bit higher but would prefer not to) but would like to only spend what I need to to get the job done.

Usage is going to be 100% movies and games, no concern about music. I'm not going to be blasting the subwoofer, plus I'm hoping the small room size will make output a nonconcern for any sub $1k+. The only consideration I'm going for is as much output in the ultra deep as possible, such as in 10Hz and maybe even lower into the single digits if that's possible in this price range.

So far, I was looking at these:

Rythmik F25 | FV15HP | F15HP

PSA XS30

Any other suggestions? Thus far my frontrunners are PSA XS30 (love the price), and, if that can't get the job done, maybe the Rythmik F25 whenever that's available.

Of the choices above, for a single sub, I'd go with the FV15HP based on your preference. It will definitely have the most output under 20hz (especially down to port tune; 12.5hz), and will likely have the most output at 10hz as well (with room gain).

 

IMO, none of the above (singularly) will offer usable output below 10hz.

 

All good choices however!

post #10 of 40
Guys, the DTS-10 will have the most output from 12hz and up! It takes two sealed LMS 5400's to equal it in that range. 10hz and below it is the other way around. If he wants deep extension with one sub at loud SPL's this is it, in that 1300 cubic foot room it will be loud and deep!
post #11 of 40
I think the 10 Hz is somewhat unrealistic and likely overkill; my F12 is flat to maybe 14 Hz, about the spec, and pair EQ'd is about -3 dB at 10 Hz bt that includes a peak just a little over that frequency so they it's probably closer to 4 - 6 dB down at 10 Hz in my room. I also think going with a high-power sub in a 1300'cu room is overkill. Whatever.
post #12 of 40
Quote:
Originally Posted by DonH50 View Post

I think the 10 Hz is somewhat unrealistic and likely overkill; my F12 is flat to maybe 14 Hz, about the spec, and pair EQ'd is about -3 dB at 10 Hz bt that includes a peak just a little over that frequency so they it's probably closer to 4 - 6 dB down at 10 Hz in my room. I also think going with a high-power sub in a 1300'cu room is overkill. Whatever.

Why is 10hz overkill? For the 14hz ported sub most likely but overall 10hz should be experienced properly.
post #13 of 40
Meant to say "10 Hz goal"...

It is for me, YMMV. I have not seen a lot of 10 Hz content, and that was usually a brief scene, so have no overwhelming desire to do what it would take to dig significantly below 20 Hz. OTOH, I am not the bass freak many are; no slight intended, just not my thing. The 1812 cannons and some movie blasts and earthquake scenes are more impressive with sub-20 Hz capability, but the systems I have heard that really reach there well (low distortion; many subs have 2HD approaching or exceeding the fundamental for such low tones) are way out of my price range. I am not sure $1500 would get the OP clean sub-10 Hz sound, but, and I do mean BUT, I have not heard all the subs mentioned here.
post #14 of 40
+1 on the FV15HP in max extension mode.
post #15 of 40
Thread Starter 
Thanks for all the input guys.

Just saw the Freq chart for the FV15HP on Rythmik's site, and it seems to have a very sharp dropoff right before 10Hz, so I'd like to avoid that if possible.

F25 just came in stock, so at the moment I'm tremendously interested in that as possibly being my best option. It would be a fantastic option for my needs of ultra low bass, right?

However, I also looked at the Craigsub 18.1 suggestion (thanks!). Two 18"s plus an amp is about the same price, and I noticed this post showing it outperforming a Danley DTS-10 at 10Hz:
http://www.chasehometheater.com/forum/showpost.php?p=74909&postcount=13
Is that legit?

Right now my top two contenders after everything is

Rythmik F25
vs
2 Craigsub 18"s

Any thoughts as to which is going to give me the most output at 10Hz?

Thanks!
post #16 of 40
Lol, are you going to be disappointed when you find out you can not perceive 10 hz.
post #17 of 40
Quote:
Originally Posted by Hygienist View Post

Thanks for all the input guys.

Just saw the Freq chart for the FV15HP on Rythmik's site, and it seems to have a very sharp dropoff right before 10Hz, so I'd like to avoid that if possible.

F25 just came in stock, so at the moment I'm tremendously interested in that as possibly being my best option. It would be a fantastic option for my needs of ultra low bass, right?

However, I also looked at the Craigsub 18.1 suggestion (thanks!). Two 18"s plus an amp is about the same price, and I noticed this post showing it outperforming a Danley DTS-10 at 10Hz:
http://www.chasehometheater.com/forum/showpost.php?p=74909&postcount=13
Is that legit?

Right now my top two contenders after everything is

Rythmik F25
vs
2 Craigsub 18"s

Any thoughts as to which is going to give me the most output at 10Hz?

Thanks!

I am not sure if that is completely accurate. I had dual DTS10's and 4 18.2's and I felt more with the DTS10's except when I added a big amp and LT boost to the CHT subs and then they felt the same with the midbass being better with the CHT's. The CHT's were already flat to 12hz without any EQ and the DTS10 were flat to 8hz. Boosting the sealed subs made them just as deep. It depends on what you want to do and how much tweaking you want to do. The DTS10's will dig deeper naturally but also have a rougher response naturally. I will show you more graphs if you wish. I have lots of experience with both systems. Pictures too.
post #18 of 40
CHT subs(4 or 8 18's)



NO EQ



With EQ or boost down low



DTS10's



With EQ and no boost

post #19 of 40
Thread Starter 
Wow, way more info than I was expecting. Thanks!

Right now I'm keeping Danley DTS-10 as a maybe. It most definitely fits my desires, but I'm not sure if I can integrate it aesthetically well. I'm keeping it as a maybe atm.

In regards to the CS 18" performance, it's good to see it can reach that low at all. I'd think with my small room size (enclosed, w/ door) it'd definitely be very respectable. Would definitely be happy with this.

Now I'm just curious to see how the F25 with its 800W amp performs.
post #20 of 40
Quote:
Originally Posted by Hygienist View Post

It most definitely fits my desires, but I'm not sure if I can integrate it aesthetically well.

Fitting a large, rectangular, square corner box, that's 22"x22"x40" into one's aesthetics (decor), may require one to radically change their sense of aesthetics. tongue.gif

Just a thought, Rythmik posted the price for the F25 today and this will definitely give you some below 20Hz extension in a bit smaller package; 19"Wx21"Dx33"H Unfortunately, this beast is a bit too large for our decor.

-
Edited by BeeMan458 - 3/22/13 at 8:14am
post #21 of 40
Quote:
Originally Posted by BeeMan458 View Post

Fitting a large, rectangular, square corner box, that's 22"x22"x40" into one's aesthetics (decor), may require one to radically change their sense of aesthetics. tongue.gif

Just a thought, Rythmik posted the price for the F25 today and this will definitely give you some below 20Hz extension in a bit smaller package; 19"Wx21"Dx 33"H Unfortunately, this beast is a bit too large for our decor.

-

Why does every sub thread on AVS eventually become about you and your room?
post #22 of 40
That sub has a 20hz HP filter on it at 18 dB/octave, I don't think deep bass at loud levels will ever happen since 10 dBs will be 18 dBs lower and 15hz will be 9 dBs lower. No thank you.

OP,
The bottom line is the single best sub in your budget will be that DTS10 for $900 used. However, if it is too big or ugly then the Captivator will get you great output to 17hz in room. These two subs will have at least twice the output as the others mentioned but they are used and need an external amp. These are the top dogs and work your way down from here.
post #23 of 40
Specifications list the F25 performance at -2 dB @ 14Hz. confused.gif


The rumble filter is spec'd at 18 dB/octave.

Quote:
Rumble Filter (High pass ) 20 Hz 18 dB / octave

Unless one is planning on over-driving the F25 and needs the insurance a rumble filter provides, the rumble filter can be left in the off position.

-
Edited by BeeMan458 - 3/22/13 at 7:32am
post #24 of 40
If that is an outside spec than there is some serious EQ going on. I wonder what the rolloff will be. The filter off is better because if you use it you are better off with the ported sub in 15hz tune.
post #25 of 40
I thought Chase was going out of business. Something about him being pissed about O'bama winning the election. Did he change his mind?
post #26 of 40
It more about having to change what he was doing because of the new laws being implemented. Anyways, it seems he has created a new work around and coming out with new products.
post #27 of 40
Quote:
Originally Posted by MKtheater View Post

It more about having to change what he was doing because of the new laws being implemented. Anyways, it seems he has created a new work around and coming out with new products.

More like he had a hissy fit then changed his mind. The whole episode was absurd.
post #28 of 40
How does one act when something happens to make you change something drastically? I am sure we all have our moments and to call people absurd or whatever acts like you never had a bad moment before. People are not perfect and things happen. He had to shut down because he would not be able to sell the stuff at the prices he wanted to, he would have to increase the price which he did not want to do. Luckily, he found someone to help out and keep things going. He just happened to let everyone know about how he felt about it. People don't have to agree but we also should not judge, we are not perfect.
post #29 of 40
Quote:
Originally Posted by MKtheater View Post

How does one act when something happens to make you change something drastically? I am sure we all have our moments and to call people absurd or whatever acts like you never had a bad moment before. People are not perfect and things happen. He had to shut down because he would not be able to sell the stuff at the prices he wanted to, he would have to increase the price which he did not want to do. Luckily, he found someone to help out and keep things going. He just happened to let everyone know about how he felt about it. People don't have to agree but we also should not judge, we are not perfect.

That's what he claims - if there is any evidence to support those claims, he didn't produce it. Other ID vendors seem to be doing fine.

Publicly injecting personal politics into your business is amateur hour and a sure way to alienate a percentage of your customers. I don't begrudge him or anyone their personal beliefs, but have no sympathy when stated as corporate policy.
post #30 of 40
Quote:
Originally Posted by bfreedma View Post

That's what he claims - if there is any evidence to support those claims, he didn't produce it. Other ID vendors seem to be doing fine.

Publicly injecting personal politics into your business is amateur hour and a sure way to alienate a percentage of your customers. I don't begrudge him or anyone their personal beliefs, but have no sympathy when stated as corporate policy.

I did not know he commited a crime and was on trial. Innocent until proven guilty so if you don't believe someone or don't care why even get involved or state an opinion on the matter? I have bought from many companies and not one went out of their way as much as CHT did. I can only go by my experiences I have had and I don't own any products from them. I own products from eD which did lie and steal. It sure is a good thing they perform well or I would be totally screwed. Although they are smaller and on paper have less displacement, these little 13's dig lower and louder down there. The 18's win the midbass race but I have enough 13's to have great or overpowering midbass.

To get back on track, If the OP can fit the DTS10 or not care about looks it is the sub he should get because it has the highest performance for the price. The Cap used would be next. If they are too big then I would look into the FV15HP. There are two SVS 16-46CS+ subs for sale that are nice as well.
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