Recent content by Stephen Weller

If you don't need massive amounts of power, check this out S1554kit $19.95 2 x 22 WATT STEREO Here: http://www.dckits.com/audio.htm I built three of these for my temporary 5.1 amp until I could convince the spouse that an integrated amp was worth it. I'm still using one in my DVC sub...

I asked about exactly this not very long ago, wondering if it would actually quarter the required volume...but if you think about it, it would really be a dipole. Would make for an interesting experiment though. On a side note: I rejected the Shiva for isobaric configs. Can't remember why...

Turn the sub off where? If you're telling the AV amp "No Sub" then it sends full spectrum to the mains and sats. No? This will absolutely give you different measurements between sub-on and sub-off. If you're just switching of the sub - turning off the sub's power, that's a different matter...

This guy has the right idea (though I'm not crazy about the overall shape). Simple skirting hides the "uglies.": http://www-personal.engin.umich.edu/...mids/subs.html

That's something I'm still trying to figure out. All the illustrations I've seen on the web depict an isobaric configuration as sealed. Then I've seen several DIYer's websites where they built what they call isobaric subs that are ported. So I'm wondering if they haven't created some kind of...

Yup. Flat roof and block walls. But I wish...:frowning:

Used it to make my...uh...new/old sub.:confused:

I still can't get the concept out of my head. I want to tackle a DIY SonoSub, but I have restrictions: Hers: It must be invisible. Well, OK. Less visible. The smaller the better. Mine: It must be accurate and reach lower than what I have. Ideally, down to 20Hz or lower. These points...

As a general rule, if it is optically transparent, it will be acoustically transparent (Which makes sense to me). I think I got that out of a speaker builder's cookbook.

($0.02 warning) If you scope a clipped sine wave, it may look like a square wave until you zoom in on it. Then you'll start to see the rates of rise and fall. But a true square wave will remain...uh...square.

There are (at least) two different kinds of distortion, too. Harmonic distortion (THD) is something you can hear, while intermodulation distortion (IMD) is something you can feel and can, over time, wear you out; making you feel tired. Sadly, the FTC must've given up on trying to force...

No. The discomfort (pain) is caused by excessive (S)ound (P)ressure (L)evels.

Well, that sounds like a load. Think about it for a minute. To get the signal from the amp to the sub, you need a positive(+) and a negative(-). If either conductor is disconnected at either end, what you have is an antenna.:rolleyes EDIT: Maybe I jumped the gun. Is this otherwise a...

Get the analog and try it. If you don't like it, take it back and get the digital. Try it. If you don't like it, take it back and get the analog. Etc...etc...etc...