On 2020-12-27 11:55, Dainiushas wrote:
> tai jei įtampa spėja kilt ant 20kHz, kaip ten tai gali kažką įtakot
> žemuose dažniuose?

Kas yra "spėja"?

Songs for Testing Attack and Decay Quality
Attack and decay refer to a tune's sudden start and stop. The sound 
system should be able to cushion the abruptness, so the tune doesn't 
come out shrill or sharper than it's supposed to be.

The best tracks for this test are:

Das Spiegel” – Chemical Brothers
“The Rite of Spring” – Igor Stravinsky