30:16

As peças importam?

13:07

FOR BEGINNERS ONLY: How Does a Loudspeaker Work?

13:15

How NOT to design a CROSSOVER

50:22

KLH Model Five ~ Restoration Part 1 ~ Disassembly & Crossover Rebuild

23:27

Atualizações de crossover de alto-falantes: valem a pena o esforço?