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

 

 

Scan Speak 9500

Frequency response

Impedance

Off axis response

SS9500 Linear distortion measurements

Waterfall

Linear distortion

1.8k

2.5k

4k

6k

8.5k

11.5k

15k

SS9500 Nonlinear distortion measurements

1.3k

1.5k

2k

3k

5k

7k

11k