Too much bass for the space? - AVS Forum | Home Theater Discussions And Reviews
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post #1 of 113 Old 02-13-2017, 03:47 PM - Thread Starter
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Too much bass for the space?

I have a 950 ft3 room with four 12" subs.

I thought the drivers were junk but it turns out the way I set them up was junk.

meanwhile I already bought 2 um-18s and inuke 6000 and built a box for them.

So....if you were in my shoes, would you just use the two 18s, or would you use the two 18s PLUS the four 12s?

dilemma is it only adds 1.5 decibels but now I will have multiple subs that I would want to time align and that is a lot of effort.

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post #2 of 113 Old 02-13-2017, 03:52 PM
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64 base level speakers $10k
28 height speakers $10k,
14 subwoofers $10k
90% of the movie sound coming from the center channel - priceless.

LMAO!

2 um-18s will fill up that room without breaking a sweat.
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post #3 of 113 Old 02-13-2017, 03:59 PM
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There's no such thing as too much bass. Time aligning doesn't have to be too hard, particularly if you have measuring gear. If you've got a spot or two that gives the best response, stack them all near there. You don't have to spread them out.

What type of enclosures, what type of tuning? Think if it this way, you can have really epic bass if you want.
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post #4 of 113 Old 02-13-2017, 04:05 PM
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I couldn't believe this thread name in this forum! As I understand it if you don't have broken drywall or windows, and no flashing lights or sirens, you don't have too much bass,...
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post #5 of 113 Old 02-13-2017, 04:19 PM
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Here is the door....


Now, you've been shown the door. Too much bass in a room...LOL
The nerve of this thread!
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post #6 of 113 Old 02-13-2017, 05:03 PM
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Your almost there you just need 2 more 18's and another 6000 plus the 4 12's. Then you can go deaf like the rest of us!!!
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post #7 of 113 Old 02-13-2017, 06:10 PM
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Now you can have nearfield 18's, unless you can only fit the 12's.
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post #8 of 113 Old 02-13-2017, 07:50 PM
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4 subs around the room for the best FR. Keep the small subs closer to the MLP and the other 2, nearfied. Sounds like a dynamite system.
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post #9 of 113 Old 02-13-2017, 08:26 PM
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Quote:
Originally Posted by 1201 View Post

So....if you were in my shoes, would you just use the two 18s, or would you use the two 18s PLUS the four 12s?
I had 4 21" and 8 12" subs at one stage, so I'd say use the lot. Eventually there will be the 4 21" and 4 UM18's.

If I were you, I'd put the 18's up front and the 12's nearfield.

Quote:
Originally Posted by 1201 View Post
dilemma is it only adds 1.5 decibels but now I will have multiple subs that I would want to time align and that is a lot of effort.
1.5dB sounds too low. What are the 12"s?

Buy a MiniDSP so you can set the delays differently easily and the EQ will be useful.
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post #10 of 113 Old 02-13-2017, 09:39 PM
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Too much what?
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post #11 of 113 Old 02-14-2017, 05:33 AM - Thread Starter
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Quote:
Originally Posted by rontalley View Post
64 base level speakers $10k
28 height speakers $10k,
14 subwoofers $10k
90% of the movie sound coming from the center channel - priceless.

LMAO!

2 um-18s will fill up that room without breaking a sweat.
and in one stroke, i have become, oh no, a consumer.

adding 4 12s for a meager 1.8 db increase doesnt seem worth it to me.

64 base level speakers $10k
28 height speakers $10k,
14 subwoofers $10k
90% of the movie sound coming from the center channel - priceless.
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post #12 of 113 Old 02-14-2017, 05:47 AM - Thread Starter
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Quote:
Originally Posted by rhodesj View Post
There's no such thing as too much bass. Time aligning doesn't have to be too hard, particularly if you have measuring gear. If you've got a spot or two that gives the best response, stack them all near there. You don't have to spread them out.

What type of enclosures, what type of tuning? Think if it this way, you can have really epic bass if you want.
three of the subs are not moving. so its going to make time aligning tricky. they are sealed subs and they sound very good.

Quote:
Originally Posted by MrMky View Post
I couldn't believe this thread name in this forum! As I understand it if you don't have broken drywall or windows, and no flashing lights or sirens, you don't have too much bass,...
normally I would think you were joking but in the diy bass thread with 8 21s being the norm, you just might be serious as a heart attack

Quote:
Originally Posted by dtsdig View Post
Here is the door....


Now, you've been shown the door. Too much bass in a room...LOL
The nerve of this thread!
so you are the one who reported me to a moderator for daring to even think that there might be such a thing as too much bass?

I got a warning- THERE IS NO SUCH THING AS TOO MUCH BASS. YOUVE BEEN WARNED.

Quote:
Originally Posted by Cichlid109 View Post
Your almost there you just need 2 more 18's and another 6000 plus the 4 12's. Then you can go deaf like the rest of us!!!
you have a point. if i do that, do you think I'll finally be able to hear the marvel movies "as they were meant to be heard?" lol

Quote:
Originally Posted by K9woofer View Post
Now you can have nearfield 18's, unless you can only fit the 12's.
the um18s box will be four ft from the MLP

Quote:
Originally Posted by derrickdj1 View Post
4 subs around the room for the best FR. Keep the small subs closer to the MLP and the other 2, nearfied. Sounds like a dynamite system.
unfortunately, three of the 12s are the bottom end of my three way active speakers, so those are not moving. having said that I do firmly believe that the subs should come from the same general area as the main speakers.

Quote:
Originally Posted by A9X-308 View Post

1.5dB sounds too low. What are the 12"s?

Buy a MiniDSP so you can set the delays differently easily and the EQ will be useful.
iirc, the um 18s modelled 121 db at 30hz. the 4 12 modelled 118 db at 30, so 121+118 =122.8
so I guess a 1.8 db increase?

I have something thats kinda like the minidsp that can do delays.

64 base level speakers $10k
28 height speakers $10k,
14 subwoofers $10k
90% of the movie sound coming from the center channel - priceless.
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post #13 of 113 Old 02-14-2017, 07:02 AM
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Try things out with all of them, and make an effort to get them all to play nice together. I doubt you'll want to give up any of them if you can dial things in. Especially if the 12s are part of your main speakers... set your crossovers for those three down low, make sure your AVR isn't set to "LFE+Main" and then just locate the new 18s in the best (feasible) locations. It will be great! If you have one "extra" 12 floating around you can always use it nearfield as an end table or something.
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post #14 of 113 Old 02-14-2017, 07:37 AM
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Ha ha ha, I lost it laughing....
I have cracked drywall (a few times) and still think I could use a little more... ya know... just cause.....
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post #15 of 113 Old 02-14-2017, 07:45 AM - Thread Starter
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Ha ha ha, I lost it laughing....
I have cracked drywall (a few times) and still think I could use a little more... ya know... just cause.....
lol


you do realize that 2x 24s could be used to provide the low end for a mid to large size auditorium right?
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64 base level speakers $10k
28 height speakers $10k,
14 subwoofers $10k
90% of the movie sound coming from the center channel - priceless.
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post #16 of 113 Old 02-14-2017, 07:57 AM
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Quote:
Originally Posted by 1201 View Post
lol


you do realize that 2x 24s could be used to provide the low end for a mid to large size auditorium right?
Yes, but we all know here that small home theater provides acoustical issues that an auditorium doesn't have, so we have to compensate somehow. Right? That's how I see it.
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post #17 of 113 Old 02-14-2017, 08:09 AM
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Quote:
Originally Posted by 1201 View Post
lol you do realize that 2x 24s could be used to provide the low end for a mid to large size auditorium right?

Yes.... yes I do...

Quote:
Originally Posted by mushroommunk View Post
Yes, but we all know here that small home theater provides acoustical issues that an auditorium doesn't have, so we have to compensate somehow. Right? That's how I see it.



Oh yeah.... Any lie I can tell myself to get new gear is great!
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post #18 of 113 Old 02-14-2017, 08:16 AM
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Oh lord I knew this was going to devolve quickly lol. i was hoping I could be the first one in here to scream "ARE YOU MAD NEVER ASK THAT QUESTION HERE!!!" haha. This is a place where anything under 18" is considered tiny, one of the folks on here has a 21" sub in each end table, I've seen photos of people home theaters with a wall of 18" subs or larger. People here buy subs like you buy eggs by the dozen LOL
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post #19 of 113 Old 02-14-2017, 08:20 AM
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Oh lord I knew this was going to devolve quickly lol. i was hoping I could be the first one in here to scream "ARE YOU MAD NEVER ASK THAT QUESTION HERE!!!" haha. This is a place where anything under 18" is considered tiny, one of the folks on herehas a 21" sub in each end table, I've seen photos of people home theaters with a wall of 18" subs or larger. People here buy subs like you buy eggs by the dozen LOL

only a 21" sub??? Pffft..... lol
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post #20 of 113 Old 02-14-2017, 08:23 AM
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People here buy subs like you buy eggs by the dozen LOL

Quote of the day.
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post #21 of 113 Old 02-14-2017, 08:30 AM - Thread Starter
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Yes.... yes I do...






Oh yeah.... Any lie I can tell myself to get new gear is great!
you know you want to come to texas and pick up two more 24s . I saw you lurking in that for sale thread.


I think acoustically , for your space. you need four 24s. matter of fact how do you even bear 2 24s. in that small space I would consider two unlistenable. yuck

64 base level speakers $10k
28 height speakers $10k,
14 subwoofers $10k
90% of the movie sound coming from the center channel - priceless.
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post #22 of 113 Old 02-14-2017, 08:40 AM
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Quote:
Originally Posted by 1201 View Post
in that small space I would consider two unlistenable. yuck
Are you still thinking about building those extra subs @uniquepattern ?? lol Well, i guess the more accurate question is, have you already started?
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post #23 of 113 Old 02-14-2017, 08:41 AM
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Originally Posted by 1201 View Post
you know you want to come to texas and pick up two more 24s . I saw you lurking in that for sale thread.


I think acoustically , for your space. you need four 24s. matter of fact how do you even bear 2 24s. in that small space I would consider two unlistenable. yuck

4 24's up front, and 4 18's nearfield is probably about right for the room...

Gotta have a goal in life... lol.....
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post #24 of 113 Old 02-14-2017, 09:05 AM
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Quote:
Originally Posted by uniquepattern View Post
4 24's up front, and 4 18's nearfield is probably about right for the room...

Gotta have a goal in life... lol.....
I don't know personally I wanna put about 4 up these up front



But then again considering Michael J. Fox is only like 4 feet tall that speaker is probably only a 24" which is hardly worth even considering lol
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post #25 of 113 Old 02-14-2017, 09:21 AM
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I have to admit, I saw a thread titled 18ft subs for under $300 and got all excited....


Then I realized he was talking about the tiny little 18 inch Ultimax subs.... Cute little things they are.....
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Originally Posted by derrickdj1 View Post

4 subs around the room for the best FR. Keep the small subs closer to the MLP and the other 2, nearfied. Sounds like a dynamite system.


unfortunately, three of the 12s are the bottom end of my three way active speakers, so those are not moving. having said that I do firmly believe that the subs should come from the same general area as the main speakers.

Depending on room constraints and personal taste, you can leave the subs like that. I am talking in general and a distributed bass system will give the most even response in the room and best FR in the majority of rooms. Another approach is to have the front sub integrated with the mains at the XO and use a lpf on the rear subs so that they don't interfere with the front subs/main combo. Ultimately, each of us has to find the combo that works best in our rooms and suits our taste.
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post #27 of 113 Old 02-14-2017, 11:16 AM
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Quote:
Originally Posted by uniquepattern View Post
I have to admit, I saw a thread titled 18ft subs for under $300 and got all excited....


Then I realized he was talking about the tiny little 18 inch Ultimax subs.... Cute little things they are.....
Are you familiar with Rotary Woofers? A few adventurous DIY'ers have built them. If you want to beef up the ultra low end. Once I get the rest of the theater squared away I plan on making one if I can.
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post #28 of 113 Old 02-14-2017, 06:18 PM
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one of the folks on here has a 21" sub in each end table
I'll soon have 2 21's in an ottoman and 2 immediately behind the couch.
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post #29 of 113 Old 02-14-2017, 06:20 PM
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Quote:
Originally Posted by 1201 View Post
iirc, the um 18s modelled 121 db at 30hz. the 4 12 modelled 118 db at 30, so 121+118 =122.8
so I guess a 1.8 db increase?
When using dissimilar subs I work out the total volume displacement and calc the SPL from that.
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post #30 of 113 Old 02-14-2017, 06:58 PM
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More like: STILL not enough bass.
  • Until you have dual 36's and 100kW A/B epoxyed directly to your eardrums, then there is still room to grow.
  • If you aren't down -0db @ DC (or atleast 194db @ 0.1hz), then there is still room for improvement.
  • Until you have a Hover dam or nuclear power plant in your backyard, then there is still room to grow.
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