Posted by uW [ 208.42.91.66 ] on October 15, 2005 at 13:48:00:

I'd like to build a pair of Pi-aligned cabinets for my newly-acquired pair of Goodmans Axiom 201 12" extended-range drivers.

As a first step (and also just as a learning exercise), I'd like to measure the T-S parameters of my particular pair of 201's.

I have all of the information I need to get started except:

How should I calculate a reasonable volume for the closed box I will use to measure Vas?

The Readme.txt file contained in PiAlign.zip says, "The test box should be 0.5 - 2.0 of the expected Vad, which can be
approximated using the ratio method described above."

I may be misreading the Readme.txt document somehow-- because I can't spot the ratio method for approximating the expected Vad. Can you help me out?

Thanks very much,

-uW

Replies:

• Re: Measuring Vas? - Wayne Parham 14:51:02 10/15/05 (4)
  • What volume box for sealed-box test? - uW 19:41:38 10/15/05 (2)
    • Re: What volume box for sealed-box test? - Wayne Parham 19:43:21 10/15/05 (1)
      • Thanks! - uW 09:22:40 10/16/05 (0)
  • Re: Measuring Vas? - Paul C. 19:26:04 10/15/05 (0)