Posts by diy speaker guy

If you like I can attempt to find the threads where people measured their port output, which I then simulated and showed a remarkable similarity. (They all look just like the same thing as the pic I just posted.) I don't know what you...

Quote:Originally Posted by Ricci ... ports are only effective over a limited bandwidth of about 2 octaves. I'm trying not to dispute every single thing point by point but finding it difficult to resist... WinISD (with port...

Quote:Originally Posted by Mark Seaton Varying Q related to exact geometries are separate from compression effects. Simple fact: A large diameter port that is a fraction of its diameter in length behaves rather differently at...

Quote:Originally Posted by robertcharles 10-26-10: Drew_eckhardt I do not have winisd on my new computer, so I would ask if you could model the sealed version of the same enclosure and then compare the two and post them here. That...

Quote:Originally Posted by Ricci The basics of port operation are well established and will not change just because it is tuned lower than normal. You seem to be claiming that they will. I know how ports work but as Mark is pointing...

Quote:Originally Posted by Scott Simonian A guy with the same idea as this comes by every year. I'm tired of explaining every little detail. All the important stuff you really need to know has been said already by several...

Quote:Originally Posted by Scott Simonian Annnnd what we are telling you is that you will create more problems than make. BUILD A SEALED ALIGNMENT. Gosh. Yeah, but if you are convinced it won't work you should be able to use your...

Quote:Originally Posted by N8DOGG I do have to know, have you ever built anything? Forgot to answer this. Yes I build. But (like most people, I thnk) I simulate a lot more than I build. My first tapped horn was documented online...

Quote:Originally Posted by Mark Seaton Short answer: As ports get to any sort of extreme, the Q can deviate greatly from assumptions in the model. Those extremes can be short/long, small/large, high Q/low Q alignments, etc. I...

Quote:Originally Posted by Ricci You are not listening to what we are trying to tell you. This idea has come and gone many times before. Go back and look at the simulations I posted. There is zero as in ZERO gain anywhere above 7Hz....