Mark K's Speaker Pages

...when you can measure what you are speaking about, and express it in numbers, you know something about it; but when you cannot measure it, when you cannot express it in numbers, your knowledge is of a meagre and unsatisfactory kind; it may be the beginning of knowledge, but you have scarcely in your thoughts advanced to the state of Science...Lord Kelvin

 

Tweeter Group 1-Vifa DX25, XT25, D26, SS9500, and the Usher 9950

 

Driver page links

Vifa DX25

Vifa XT25

Vifa D26

SS9500

Usher 9950

 

 

Vifa XT25

Frequency response

Impedance

Off axis response

Page 2-XT25 Linear distortion measurements

Waterfall

Linear distortion measurements

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11.5k

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Page 3-XT25 Nonlinear distortion measurements

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