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 3-Seas 27TDC and 27TDFC
|
Seas 27TDFC and TDC comparison
Frequency response
Impedance
Off axis performance.
TDFC
TDC
Waterfall
TDFC
TDC
Linear distortion
Nonlinear distortion
The Seas 27TDFC will be first, followed by the TDC version.
Conclusions.
Both the Seas 27TDFC and TDC measure very well. They have very good nonlinear distortion numbers all the way to 1-1.3k. If you compare my 1.5k data between these and the mdt30/xt19/ow2, both Seas versions are clearly better. The TDC has slightly lower nonlinear distortion numbers, especially as you go up in frequency. There are a notably higher number of higher order distortion products in the -60 to -80 dB range for the TDFC in comparison with the TDC. On the other hand, the TDFC does edge out the TDC on linear distortion and off axis performance. Overall, a toss up between two very good tweeters. A bargain in their price range.