D'Addario EJ45 VS D'Addario EJ25B

This is a video (mostly audio) for being able to hear the differences the black nylon has, by comparing it to the well known nylon of the D'Addario EJ45. By comparison of the strings on the same guitar you might be able to hear the differences of the timbre the black nylon strings have.

The image in the video for D'Addario EJ25B is not correct, sorry. (It says EJ25C) The image for the preview is correct though.

0:00 Francisco Tárrega - Recuerdos de la Alhambra
2:24 Verano Porteño - Astor Piazzola
3:26 Francisco Tárrega - Lágrima
4:34 Francisco Tárrega - Adelita
5:23 Sabicas - soleá
7:49 Jerónimo Maya - Tango
10:05 Paco de Lucia - Guajiras de Lucia
12:40 simple buleria compás
15:25 Francisco Tárrega - Capricho árabe
17:53 Agustín Barrios - Vals No.3
19:14 Isaac Albéniz - Asturias
22:37 H. Villa-Lobos - Prelude No.5
26:39 Vicente Amigo - Vivencias Imaginadas

Things that cannot be heard in the video:
EJ25B is a bit harder than the EJ45. The tension is medium for the basses, which is the same as the EJ45, and hard for the trebles, as in EJ46, so the as expected, the EJ25B is a bit harder to fret and play.
The black colour on the strings also changes the sound a bit, at least to my ears. I always feel the black strings, of any brand, take a bit away from the clarity their transparent counterparts have. But for playing only flamenco, the EJ25B is a very nice and powerful set, the EJ45 is still more versatile.

Hope this video helps!

Cheers!