[Trevor]

On 23/01/2015 2:16 AM, Scott Dorsey wrote:
Les Cargill wrote:
I have never had problems finding the manufacturer's published T/S
parameters.

Sometimes those published parameters are pretty fictional.

I'm not going to mention any particular manufacturers here, but a quick
sweep in free air to determine Fs by ear will tell you who they are.
--scott

And when they are not entirely fictional, they are often just ball park
figures which don't allow for individual and batch variations. If I'm
going to the trouble of designing and building a box, I'd rather take
the time to measure the drivers first, and then tune the finished box.
But each to their own.

Trevor.