The correct box modeling program?

[planet10]

but one usually starts with small signal T&S parameters that are consistent and reproducible to two places

I rarely see that

Right now I see two sets of numbers that represent two entirely different drivers that would live in two entirely different boxes.

Makes designing a box a conundrum... i always start with the factory parameters. Rarely has it taken a 2nd try.

dave

 

[Conrad Hoffman]

I probably phrased that wrong, but meant two significant digits. IOW, if the Qts is .43, I get that number very consistently. For some companies I also get extremely close to their published numbers. I do it the old fashioned way, driver hanging on a string, manual signal generator and meter/scope, plus test box. No software other than for the calculations. Though people and methods have gotten quite sophisticated in the last decade or so, it really isn't rocket surgery. Measure driver, design box, enjoy (or not, depending on quality and suitability of driver). IMO, there are a lot of drivers out there best suited to klaxons and sirens, as opposed to hi-fi.

 

[planet10]

For some companies I also get extremely close to their published numbers.

I always take that to indictate that the driver has close to horizontal T/S curves.

dave