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Audio/Video Tip: Subwoofer Crawl |
June 12th, 2010 at 2:36 pm
I have two woofers, …
I have two woofers, they are 9.5 ft tall and weigh 700 lbs/ea. The crawl however could be done with any subwoofer. Just place a small sub at your listening position and use it for the crawl then once you find the optimum spot place your larger sub there. I didn’t do the crawl, I just put one on each side of the room about 4 ~ 5 ft from the front wall. These are dipole subs so they work a bit differently. Bass response across the eleven seats is very uniform.
June 12th, 2010 at 2:36 pm
Also my diy JBL …
Also my diy JBL 4645 sub is a bit large to pick up and it might break the sofa! LOL I could move the sofa out of the way and place the sub in this location and use pink noise with microphone and spectrumlab where it paints a colour frequency spectrum. Its quicker to move the microphone around and it will see nulls dips and peaks. The aim is for smoothest frequency response.
June 12th, 2010 at 2:36 pm
Also subs in a …
Also subs in a cinema are many feet above seated ear height be radiates down and around uniformly. You might have range from 50 to 65Hz where the bass is in huge dip and that is not good. The sub might be doing well from 20Hz to 45Hz? Place a another sub of the same on top of the first one and might improve the 50Hz 65Hz it might have a bit more strength on the 20Hz to 45Hz. It doesnt happen overnight it can takes days to set-up.
June 12th, 2010 at 2:36 pm
Crawling around …
Crawling around youll ears will be a few many inches below the seated height level! So you might as well do, The Crouching Tiger Itching Dragon where you crouch and walk around slowly with wideband pink noise. The sub will filter off the rest of the lows.
June 12th, 2010 at 2:36 pm
lol
lol
June 12th, 2010 at 2:36 pm
thanks it worked
thanks it worked
June 12th, 2010 at 2:36 pm
Does it matter what …
Does it matter what the orientation of the sub when you place it where your sitting for the crawl?
June 12th, 2010 at 2:36 pm
The bass is non …
The bass is non directional below 80hz…
June 12th, 2010 at 2:36 pm
when i bulid my …
when i bulid my home theater not only am i gonna do the crawl for one sub, but also two. its gonna be ridiculous =D
June 12th, 2010 at 2:36 pm
hmm Yes but what if …
hmm Yes but what if i have a subwoofer with 2 x 12″ ? where to put….. check my video don’t know where to put the box its 150 cm and 45cm each side long cube model .. it’s different from classic sub…
June 12th, 2010 at 2:36 pm
I used to have the …
I used to have the same woofer setup right next to my TV. I would sit down to listen and hear literally no base at all. Yet everyone in my house was freaking out and complicating about me shaking everything down stairs. So I got up and went half way down the stairs, and the bass was so strong it felt like my heart was going to explode. I did this (as directed by a friend, before this video came out) and it turned out the sweet spot was dead center in the room.
June 12th, 2010 at 2:36 pm
oh man i have to …
oh man i have to move my bed
June 12th, 2010 at 2:36 pm
My problem is I …
My problem is I can’t have the subwofer sticking out anywhere I need to “hide” it.
June 12th, 2010 at 2:36 pm
I know what thats …
I know what thats like to have a large fireplace and chimney sticking out into the room, my room is the same but the room I have my system setup in can have the woofer in the corner of the room thank goodness. but the “Subwoofer crawl” is a little extream and I have never come across any one doing it before
June 12th, 2010 at 2:36 pm
Sometimes, but …
Sometimes, but there’s no hard & fast rules, especially when you have a room like mine where it is all open along the left side and a large fireplace and chimney sticking out into the room on the right-hand side. I have my sub at the back of the room between the 2 rear surrounds and i get fairly even base whatever chair i’m sitting in. Just trial & error…
June 12th, 2010 at 2:36 pm
WOuld you say that …
WOuld you say that having the woofer in the corner of the room because then the bass can bounce of the walls and it will give it a bigger boost in sound then what is there?