DIY Subwoofer Risers - Page 26 - Blu-ray Forum

pokefan · 07-10-2009, 02:10 PM

So what do you guys think of my poor man's DIY sub riser?

I had to test it out and see if it even made a difference before I started building one. I was pretty impressed with the change so I think I'll try to put one together this weekend.

Aerodude73 · 07-10-2009, 02:19 PM

Quote:

Originally Posted by pokefan

So what do you guys think of my poor man's DIY sub riser?

I had to test it out and see if it even made a difference before I started building one. I was pretty impressed with the change so I think I'll try to put one together this weekend.

LOL - LOOKS GOOD TO ME! I'm sure the "real" one will hopefully work as well...

Aerodude73 · 07-10-2009, 06:32 PM

Just ordered 2 pieces of 1" foam from Parts Express as i'm going to be building 2 risers for my Front POLK T90e's. The foam is 18x24 so I'll have plenty for each one (might double em' up or use a single layer: not sure yet) & then some for my 2nd Sub. I'll have more than enough left over, which I will put on my little DIY Riser for my Secondary Sub (I "may" build a little DIY Riser for that - tho' I have Limited space as it sits Beneath an End table). The Risers will be approx. 10x16x3 (W/D/H) as the speakers' footprint is 7x13.25", so I'll have a little clearance all around. I plan on using 2x2's for framing & a 3/4 or 1" MDF or Pine on top.

Stand Back: Amateur Carpenter At Large!

Big Daddy · 07-10-2009, 10:41 PM

Quote:

Originally Posted by pokefan

So what do you guys think of my poor man's DIY sub riser?

I had to test it out and see if it even made a difference before I started building one. I was pretty impressed with the change so I think I'll try to put one together this weekend.

If you can make the legs longer (4"-5") and increase the distance between the driver and the floor, it may help the sub's performance. Look at Post #1 and see how I added longer legs to my Hsu cylindrical subs.

Also, if you move the sub slightly away from the wall and other furniture, it may help. Give it some breathing room.

crazyBLUE · 07-13-2009, 12:12 AM

Built A GRAMPA

for the PSW110 this weekend

This is the new version of A riser & I got to test the dual front subs today & they do sound great in the spot I have them both!!!

Fors* · 07-13-2009, 12:24 AM

Quote:

Originally Posted by crazyBLUE

Built A GRAMPA

for the PSW110 this weekend

This is the new version of A riser & I got to test the dual front subs today & they do sound great in the spot I have them both!!!

Looks good crazy...was your goal to get both drivers at the same height? Because they do look like that now. I like the idea of further dampening under the riser platform. It's just too bad the legs are not longer on the sub itself, huh? I love the new riser, however, I don't see a small boxer dog or elephant any longer in your set-up? LOL!!!

crazyBLUE · 07-13-2009, 12:50 AM

Quote:

Originally Posted by forsberg21

Looks good crazy...was your goal to get both drivers at the same height? Because they do look like that now. I like the idea of further dampening under the riser platform. It's just too bad the legs are not longer on the sub itself, huh? I love the new riser, however, I don't see a small boxer dog or elephant any longer in your set-up? LOL!!!

Thanks forsberg , Really just wanted to get it up off the floor . With the top level of the riser cut out & open to the foam directly , There might not be any reason to rise the sub up off the riser itself !! No dogs this time

Big Daddy · 07-13-2009, 12:50 AM

CrazyBlue,

You should quit your day job and go into business of making risers.

Looks really good. They can can easily compete with the $400-$500 SubTraps from ASC.

crazyBLUE · 07-13-2009, 01:02 AM

Quote:

Originally Posted by Big Daddy

CrazyBlue,

You should quit your day job and go into business of making risers.

Looks really good. They can can easily compete with the $400-$500 SubTraps from ASC.

Thanks Big Daddy ! How the covering goes on needs to be worked on but all in all piece of cake . With the center of the top level cut out , I think it did have an affect on the way the sub sounded Still being close to the riser itself .

duneaholic · 07-13-2009, 01:06 AM

Looks great crazy...cheaper too then what I was gonna do I bet...that'll save me some coin....let me copy?

crazyBLUE · 07-13-2009, 01:12 AM

Quote:

Originally Posted by duneaholic

Looks great crazy...cheaper too then what I was gonna do I bet...that'll save me some coin....let me copy?

There is no patent on it duneaholic . Feel free , I put pics up so people could see how I did it & Build there own ! Good luck with it !

Big Daddy · 07-13-2009, 01:38 AM

Quote:

Originally Posted by crazyBLUE

There is no patent on it duneaholic . Feel free , I put pics up so people could see how I did it & Build there own ! Good luck with it !

The only constructive comment I have is to make the surface area a little bigger. You don't want the subwoofer to fall off the riser during big vibrations.

crazyBLUE · 07-13-2009, 01:53 AM

Quote:

Originally Posted by Big Daddy

The only constructive comment I have is to make the surface area a little bigger. You don't want the subwoofer to fall off the riser during big vibrations.

You're right Big Daddy , Guess I wasn't thinking about that . I will keep an eye on it over the next few days then I will be moving them around ,They do sound great where they are . I thought they would hurt the center but they did not !

jerix · 07-13-2009, 02:57 AM

For a 2-sub setup, is it necessary that the height of the RISERs of the 2 subs are equal to obtain the maximum benefit? Thanks again.

Big Daddy · 07-13-2009, 03:01 AM

Quote:

Originally Posted by jerix

For a 2-sub setup, is it necessary that the height of the RISERs of the 2 subs are equal to obtain the maximum benefit? Thanks again.

The best and easiest option for setting them up is to use identical subwoofers on identical risers. When subwoofers or risers are not identical, you may have to spend more time tweaking them and their placement to get even and smooth bass across the room.

jerix · 07-13-2009, 03:22 AM

Quote:

Originally Posted by Big Daddy

The best and easiest option for setting them up is to use identical subwoofers on identical risers. When subwoofers or risers are not identical, you may have to spend more time tweaking them and their placement to get even and smooth bass across the room.

This appears to be my concern now. Got 2 subs (one 15" and one dual 12") that are not identical hence, my problem in tweaking and placing them in the most desirable location inside my already cramped living room. Anyway, this is the joy of the hobby-it is like looking for a hidden treasure.

Moefiz · 07-13-2009, 03:23 AM

I skipped a few pages but what type of carpet do you use..just the regular carpet that you get at Home depot....and can you use a rubber coating instead of carpet

Big Daddy · 07-13-2009, 03:26 AM

Quote:

Originally Posted by Moefiz

I skipped a few pages but what type of carpet do you use..just the regular carpet that you get at Home depot....and can you use a rubber coating instead of carpet

Both Home Depot and Lowes sell small rolls of carpet in different colors. They should cost below $10.

bluseminole · 07-13-2009, 03:29 AM

Quote:

Originally Posted by Big Daddy

The best and easiest option for setting them up is to use identical subwoofers on identical risers. When subwoofers or risers are not identical, you may have to spend more time tweaking them and their placement to get even and smooth bass across the room.

This raises an interesting question, and if it belongs elsewhere maybe you can redirect me, but...

The recommendation according to your sticky (Guide to Subwoofers, Part II) is for identical subs in a multi-sub setup. But couldn't a different sub offer advantages, such as making up for the weaknesses of the first sub? If you duplicate subwoofers identically, the weaknesses of one will still be weaknesses with two of them. I understand that from an evenness standpoint, identical subs are the most predictable...because different models will interact with the room differently. But couldn't performance be enhanced with...i dunno, four subs that are 18" (for lowest freqs), 12" and 12" (for the "typical" bass freqs and two of them for evenness), and 8" for the accuracy and punch in "higher" bass freqs? These are random picks, but still. BD, As an owner of differing sub models in the same listening room, what are your impressions? Would you recommend identical subs or properly calibrated differing subs for a multisub setup if you had to choose?

bluseminole · 07-13-2009, 04:08 AM

Quote:

Originally Posted by crazyBLUE

Thanks forsberg , Really just wanted to get it up off the floor . With the top level of the riser cut out & open to the foam directly , There might not be any reason to rise the sub up off the riser itself !! No dogs this time

That could be arranged.....

07-10-2009, 06:32 PM	#503
Aerodude73 Blu-ray Archduke Member since:Oct 2008 Location:Middletown, RI (MEMBER OF THE "ECPP")™ Home Theater Gallery:134 4K collection:426 Blu-ray collection:2497 DVD collection:7 Digital collection:3 Blu-ray reviews:9 Trading Score:31	Risers for my Front speakers Just ordered 2 pieces of 1" foam from Parts Express as i'm going to be building 2 risers for my Front POLK T90e's. The foam is 18x24 so I'll have plenty for each one (might double em' up or use a single layer: not sure yet) & then some for my 2nd Sub. I'll have more than enough left over, which I will put on my little DIY Riser for my Secondary Sub (I "may" build a little DIY Riser for that - tho' I have Limited space as it sits Beneath an End table). The Risers will be approx. 10x16x3 (W/D/H) as the speakers' footprint is 7x13.25", so I'll have a little clearance all around. I plan on using 2x2's for framing & a 3/4 or 1" MDF or Pine on top. Stand Back: Amateur Carpenter At Large! Last edited by Aerodude73; 07-10-2009 at 06:35 PM.

07-13-2009, 12:12 AM	#505
crazyBLUE Moderator Top ranked HT gallery Top contributor Member since:Aug 2008 Location:Pacific Northwest Home Theater Gallery:89 Blu-ray collection:479 DVD collection:1 Blu-ray reviews: 38 Trading Score:30	Built A GRAMPA for the PSW110 this weekend This is the new version of A riser & I got to test the dual front subs today & they do sound great in the spot I have them both!!! Last edited by crazyBLUE; 06-20-2010 at 11:12 AM.

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07-10-2009, 02:10 PM	#501
pokefan Senior Member Member since:Jan 2009 Location:Stillwater, OK (MEMBER "ECPP" - Tornado Alley Affiliate) Home Theater Gallery:26 4K collection:23 Blu-ray collection:242 Trading Score:22	So what do you guys think of my poor man's DIY sub riser? I had to test it out and see if it even made a difference before I started building one. I was pretty impressed with the change so I think I'll try to put one together this weekend.

07-13-2009, 12:50 AM	#508
Big Daddy Blu-ray Champion Top ranked HT gallery Member since:Jan 2008 Location:Southern California Home Theater Gallery:79 Blu-ray collection:122 Trading Score:1	CrazyBlue, You should quit your day job and go into business of making risers. Looks really good. They can can easily compete with the $400-$500 SubTraps from ASC.

07-13-2009, 01:06 AM	#510
duneaholic Active Member Member since:Jul 2009 Home Theater Gallery:15	Looks great crazy...cheaper too then what I was gonna do I bet...that'll save me some coin....let me copy?

07-13-2009, 02:57 AM	#514
jerix Member Member since:Aug 2008 Location:Philippines	For a 2-sub setup, is it necessary that the height of the RISERs of the 2 subs are equal to obtain the maximum benefit? Thanks again.

07-13-2009, 03:23 AM	#517
Moefiz Blu-ray Knight Member since:Jul 2007 Blu-ray collection:288 DVD collection:20 Blu-ray reviews: 15 Trading Score:70	I skipped a few pages but what type of carpet do you use..just the regular carpet that you get at Home depot....and can you use a rubber coating instead of carpet

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