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I was planning on using a roofing cement and sand mixture as an extensional damping compound on some loudspeakers that I am building. I just realized that the stuff I bought is solvent based, and I know that both Weems and Dickason have warned against using solvent based products on loudspeaker...

I was wondering if anyone has built there own DIY quadradic residue diffusors? And if so how was the result? What type of material would you recommend to seperate the wells? Travis

I just purchased a CyberHome CH-DVD 500 DVD Player at my local Best Buy. I was very pleased at the fact it had the DD and DTS Decoder on board (especially considering the low price.) However, when I got home I was extreemly disappointed to discover that there was no way to turn off the dynamic...

I understand that the MTM provides better imaging, which makes me wonder why anyone would choose the 2.5-way format. Is there any "pros" the 2.5-way has that the D'Appolito design doesn't? Travis

As I understand it BFD automatically adjusts for a flat response when you have a calibrated mike hooked up to it and feed a little pink noise into the room. I also understand it has an adjustable subsonic filter. Has anyone here tried using it with a dipole subwoofer to get the 6dB/octave boost...

I'm building some MTMs with these Bravox 5 1/4 Shielded 4 Ohm Woofers. I have been breaking them in with track 35 off my Bass Mechanik cd (12 hours per driver). Two of the four that I have broken in make a slight fluttering sound. I know that I can't expect the world of $8 drivers but is this...

Hello everyone, I feel like the prodigal son. It's been awhile but it's hard when you don't have the internet. :D My father-in-law asked me to design him some speakers for him to play a small local night club (I am thinking maybe 20 - 40,000 ft^3). I have never designed a full range speaker...

Has anyone here built their own Shroeder Diffusors here? I am thinking about building some and I would like to here comments from people who have built some. Travis

Perhaps someone here can explain this better to me. I've been stuck on this paragraph for a couple days now. This paragraph was from Dickasons LDC:

I am not talking about dipoles. I am talking about bipoles like Definitive Tech's and Blose (all drivers radiating accoustically in phase). Is there really an advantage or is it just a gimmick. I don't believe this would sound good at all. I think it would just reduce the critical distance...

What is the difference between these symbols? _ - symbol 1 (an equal sign) ~ symbol 2 (wavy line over top of a straight line) ¯ ~ ~ symbol 3 (one wavy line over another wavy line) They were in the LDC and I have never seen them before.

It seems that Bose is taking credit for inventing the Transmition Line. They are calling it a "Wave Guide" and making outragous claims like "no audible distortion." Link Removed How can they leagally get away with this? :angry:

Is there really a need to use batting in subwoofers? I have heard that batting reduces standing waves but is there a need when the wavelengths are much longer then the enclosures size?

I was at Utlimate Electronics today looking at thier projectors and I noticed that the blacks were kind of grey. I really hate when I'm watching Star Trek and space looks grey instead of black. So I asked the salesman if he could fix it and he said that they had already been calibrated. Is...

I was at Ultimate Electronics today and I saw some Electrostatic speakers. I had never heard of them until now. I was wondering if anyone here can tell me the pros and cons of electrostatic speakers other then the obvious price difference. I found a website about building electrostats and...

I am trying to learn to build fullrange loudspeakers and I've been reading some books but none so far have really explained the pros and cons of a Linkwitz Riley vs a Butterworth crossover. The last book said that a Linkwitz Riley crossover provides better damping. What exactly does this mean...

I built a subwoofer a couple years ago with two Shivas and a Mackie M1400i to power it. I have never had any problems with it and I haven't noticed distortion; hoewever... I am reading a book called "The Sound Reinforcment Handbook." It's about PA systems but much of it applies to hi-fi. It...