Hi All,

I have the typical 5.1 setup and I would like to do some tinkering with my bass to test the different ranges. What's the best way to do this at all different levels on my sub from low-high? Do I need to buy one of those Avia/DVE discs?

One reason why I'm asking (other than just geeking around)is because I have a rattle that I'm trying to isolate in my room and I'm having difficulty telling where it's coming from.

Thanks!

Try the downloads on this site and burn them to disc to test out your system. Always be careful when using sine waves to test speakers.

http://realmofexcursion.com/

If you really want to see what your sub is doing, and more importantly how your sub and room interact, you need something like this: http://www.velodyne.com/products/product.aspx?ID=15&sid=893b590y

or some other way of seeing where your peaks and dips are. You can also measure with test tones and SPL meter and then use some other parametric EQ to get rid of those peaks (most boomy bass is caused not by the sub itself, but by the room). The SMS-1 is nice because you can see the graph in real time on your TV and then make corrections.

You should also plan to spend time experimenting with subwoofer placement. Even moving a sub a foot or so can have a dramatic effect.

If you have a laptop you can do it for free with room eq wizard, you can download it for free and hometheatershack.com.

Using the program it will send test tones through your receiver and plot your in room frequency response showing where your peaks and nulls are at all frequencies.

If you want to address them that is a different matter and will require funds, but at least you can see how your room interacts.

If you really want to see what your sub is doing, and more importantly how your sub and room interact, you need something like this: http://www.velodyne.com/products/product.aspx?ID=15&sid=893b590y

or some other way of seeing where your peaks and dips are. You can also measure with test tones and SPL meter and then use some other parametric EQ to get rid of those peaks (most boomy bass is caused not by the sub itself, but by the room). The SMS-1 is nice because you can see the graph in real time on your TV and then make corrections.

You should also plan to spend time experimenting with subwoofer placement. Even moving a sub a foot or so can have a dramatic effect.

Yah, I was just a friend's house yesterday and he had the SMS-1 running.

Fairly impressive to see the tonal changes occur on the X/Y Axis as you shut doors, seal ceratin areas. Makes a difference that I didn't think it ever would.