Posts by randyc1

Quote:Originally Posted by Mark Seaton Very high aspect ratio (non-square) ports do behave as though they have less effective area than a more square port. I've seen and measured some approximate rules of thumb, but there are...

You are right riverwolf , i am using the RSS315HO-44 , , i just assumed everyone would know it was the double voice coil , i should have been more specific! I level matched with REW sound meter ,and thought i was quit accurate ? the...

...Found out that when, "Are you using a Slotted Port " is checked on the web calculator, it deducts 1/2 of the Width from the Un -checked calculation !! Here's the calculator...

Quote:Originally Posted by LTD02 i have not seen air drag as part of any calculator. that would require some fairly sophisticated fluid dynamics math and would even start to depend on variables such as the 'roughness' of the...

Quote:Originally Posted by mtg90 Slot ports with a high aspect ratio tend to slow down the air due to the increase in friction from having more surface area inside the port which the same volume of air must pass over. I can't say...

Im trying to replace a 2" round Port x 8" long by a slot port , the area of a 2"port is 3.14 . Now i can make a 3.14" x 1" slot ...or a 6.28" x .5" slot port which are both = to a 2" round port(3.14) ....Why when I enter these diff...

I don't get this paragraph of yours"" With the HO-44, coils wired in series, drivers in parallel, you could show the amp a net 4 ohm load. No way to get 4 ohms net from a pair of HO-4s. Unless you're using one SA1000 per HO-4, but your...

Quote:Originally Posted by eXa Turn off the filters and level adjust them at 200hz or something instead. You will notice that the Daytons doesnt lack higher frequenzy extension, but have WAY more low end than the KEF.. Do you have...

Quote:Originally Posted by tuxedocivic But how are you level matching things? The input sensitivity of the SA1000 may be lower compared to the Kef amp. In reality, if both subs were to be getting 2.83V at the woofer terminals, the...

Quote:Originally Posted by Bill Fitzmaurice Quote:Originally Posted by eXa If that was to take effect at lets say 65hz ish you would need to have them 1.3m out from the wall.I said midbass. By the look of it the baffle may be...