AVS Forum banner
  • Get an exclusive sneak peek into our new project. >>> Click Here
  • Our native mobile app has a new name: Fora Communities. Learn more.

Dual sub advice for bedroom

424 Views 9 Replies 4 Participants Last post by  Shadowed
I'm trying to put together a nearfield (desktop) audio setup for my bedroom (~1200 ft^3) that I can be happy with for like ~4 years.

The current plan is that I'm going to have LS50Ws + dual subs + Dirac live on PC + some moderate room treatment if possible.

I'm generally like 55% music, 30% games, 15% HT, and my budget for subs is like ~$2500. Of the music I listen to, a lot of it is EDM music, and the ability to feel the music "hit" me is important (as is having the base be accurate, I'm not just looking for output).

So my main questions are:

1.) I generally know that having multiple subs is better, because it evens base across your room. I assume this benefit increases with 3 or more subs, but is it significant compared to just 2 subs?

2.) My room is not the largest, and on most charts would be defined as "small". Would it be overkill to to have dual 15"? My main concerns are on "feeling" the base, and having that base be accurate, if that can be accomplished with dual 12" or 10" then hey, I'll take the extra room space.

3.) With all that in mind, are there recommendations on which subs to get? At the moment I'm thinking of dual Rythmic F15HPs, or dual F12s. The servo tech excited me, and I'd heard good things about rythmic, so that's why I was thinking of those.
1 - 10 of 10 Posts
Also, thanks in advance for any help!
For mostly music in a room that small, I'd go sealed, a pair of 15's should be plenty and can be had under budget, if not add a third. PSA and Rythmik offer sealed models with dual 15's, those would be good too. Sealed are smaller than ported and would take up less space too.


Why do you have a 4 year time horizon?
Okay, in that case I think I'm going to have my plan be 2 F15HPs then.

If I go for something like a F25 which is dual 15 sealed, wouldn't I still have the same problems as going for a single sub? My understanding was that you want two subs to even out the peaks in the room, and make it harder to locate the sub, and to do that you want to spread the subs a decent bit from each other. If you just had the two subs directly on top of each other you'd get more output, but you wouldn't fix the other problems. If that's not true then I might get the F25 since that's much cheaper than two F15HPs

The 4 year horizon is just because I have a lot of student debt to pay down, and paying it down as fast as I can will take about 3 years, then I have one year to save money and move out. So after 4 years I'm free to spend lots of money on speakers again
  • Like
Reactions: 1
^^ or 2 L22’s will be sufficient and save some cash?
Okay, in that case I think I'm going to have my plan be 2 F15HPs then.

If I go for something like a F25 which is dual 15 sealed, wouldn't I still have the same problems as going for a single sub? My understanding was that you want two subs to even out the peaks in the room, and make it harder to locate the sub, and to do that you want to spread the subs a decent bit from each other. If you just had the two subs directly on top of each other you'd get more output, but you wouldn't fix the other problems. If that's not true then I might get the F25 since that's much cheaper than two F15HPs

The 4 year horizon is just because I have a lot of student debt to pay down, and paying it down as fast as I can will take about 3 years, then I have one year to save money and move out. So after 4 years I'm free to spend lots of money on speakers again

2 F15HP's would be excellent in your room as would the dual L22s suggested.


Generally yes, two subs are better than one, and three is often better than two. That said I doubt you'd be dissatisfied with a single F25, especially if you have some placement flexibility.


One argument for a single larger unit is futureproofing, it sometimes works out better to buy one now and add another later for a future larger room instead of cobbling together 4-5 smaller units or starting over. That's why I was asking about the 4 year time period. But that's kind of a wildcard anyway.
1.) I generally know that having multiple subs is better, because it evens base across your room. I assume this benefit increases with 3 or more subs, but is it significant compared to just 2 subs?
The biggest question is Do you need to have even bass across your whole room?

I would not worry about multiple subs unless you have more than a couple of main listening positions. Even then, the odds may be that you will have adequate bass in most ares.

I have one sub in my bedroom 5.1 and it is just fine. My large theater area downstairs has two, but even when I had just one, it was still pretty good.

It will make a difference with the subs capability and location.


Edit: Bedroom is velodyne impact 12 and downstairs is 2 diy 18's, one at front and one at back.
One argument for a single larger unit is futureproofing, it sometimes works out better to buy one now and add another later for a future larger room instead of cobbling together 4-5 smaller units or starting over. That's why I was asking about the 4 year time period. But that's kind of a wildcard anyway.
The biggest question is Do you need to have even bass across your whole room?

I would not worry about multiple subs unless you have more than a couple of main listening positions. Even then, the odds may be that you will have adequate bass in most areas.
So maybe the compromise to both of these is that I should purchase a single F25? It gives me more future proofing than a single F15HP, let's me see if I need dual, and if in the future some magic happens with audio I could safely move the F25s from my bedroom and place them in the HT room with no lost value.

I feel like I've talked myself into getting the F25...

As a question though, how much does bass response generally change throughout the room? The two main listening positions would be on my chair in front of the desk, and then on my bed ~7 ft directly back from that position, so both main listening positions are still pretty close to each other.
Regarding futureproofing, it's helpful if you know what your plans are. If you will be living in a detached house, there's a good chance ported would be the preferred option. If you will be sharing walls, ceilings or floors with neighbors then sealed is the ticket. If you don't know one way or the other, best to forget about it altogether and just address the current situation. But in that case you might opt for the cheapest option that gets the job done, and save your cash for the longer term situation.


Regarding multiple positions even a couple of feet can make a difference but if you have some placement freedom it's more likely than not you can find a spot for the sub that works for both spots. Maybe you could even move the desk if you needed to.
As a question though, how much does bass response generally change throughout the room? The two main listening positions would be on my chair in front of the desk, and then on my bed ~7 ft directly back from that position, so both main listening positions are still pretty close to each other.
The important distance is each locations proximity to peaks and nulls.
See less See more
1 - 10 of 10 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Top