2. home-theater
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Is This Sub Powerful Enough For This Room?

I will be receiving my Velodyne DD-18 sub next week. I see a lot of people here using 2 subs. The Sub will be for home theater only. The sub has the room-correcting software and all that latest stuff.

I will be running a pair of Infinity Kappa 9 speakers full range for the rears. I will be using a pair of Infinity Kappa 7 speakers laid horizontally for the center channel.

My front speakers will be a set of Infinity IRS Beta.

Powering the front speakers will be two pair of Pass Labs X-600 monoblocs. Powering the rears and center channels will be Carver Silver 9t monoblocs for each speaker.

My processor is a Sunfire Theater Grand II.

The room is 70 ft long and 22 ft wide with a 20 foot ceiling. The speakers will be positioned on the long wall.

The front speakers have a total of eight 12" woofers and the rears have two 12" woofers each.

I have run a home theater setup in the past with the Kappa 9's as the front speakers and the Kappa 7 as the rears and no sub in this same room with good results. However in the past, I'd always feared the for the health of my woofers with the onlslaught of bass that some movies have and I don't want to submit my Betas to that kind of stress.

I'm wondering if the DD-18 has the testicular fortitude to provide enough bass for a room this size.

Click on this link to MyRoom
see my room. Click "slideshow" to view the photos.

thanks......mitch
128x128mitch4t
gunbei
2,327 posts
 
Hey Mitch, if any sub has the 'nads for a room like that it would be the DD18, but as you fear you may find that operating with just one nutsack isn't enough and two huevos grandes will work better in that gi-normous room.

Set up the DD18 when you get it and see if it's got enough sperm count for your HT system. If not, it may be time to go with the double hairy beanbag approach.

"The first rule of government spending; why build one when you can build two at twice the price?"
- S.R. Hadden
tafka_steve
115 posts
 
Your huge room has roughly 10 times the volume of a medium-sized room. If you need something that plays bass louder than the DD18, consider the Servodrive Contrabass (http://www.servodrive.com/contrabass.html) or bass horns like the Labhorn or Bruce Edgar's Titan.
narrod
1,064 posts
 
Well, I think you're going to need something pretty big to load that room properly. My first recommendation would be the Wilson Watchdog...maybe two.

Good luck,

Wendell
audiooracle
387 posts
 
You defiantly need two for the room volume you have. Bass output fall off 3db for every 6 feet of space away from the speakers.

Secondly you need even bigger front speakers realistically.

Thirdly you need room correction and or acoustic tunning a room this big and as apparently as empty will suffer from slap echo, and have all sorts of nulls and peaks.

Fouthly you should have someone measure your room and help you set up your system correctly, no matter how much you
ve spent on equipment the room is the dediciding factor.

I am a tweenty year industry veteran. What state do you live in? If you are close I will come and see you.
flrnlamb
508 posts
 
Yeah, what Audiooracle said...
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