Βλεποντας το ηχειο διαβαζω αυτο...........
I have a pair in my system right now and they are an enigma to me at this point. They have forced me to rethink many things I have known to be true about woofer design. The bloody things just shouldn't sound this good; at least, according to the physics I have known all my life. Yet the degree of clarity, tonal accuracy, dynamics, and pitch definition they afford throughout their operational range is nothing short of scary spectacular. I have NEVER heard piano's sound so reach-out-and-touch-it real.
According to designer Tierry Budge (Wilson, Talon and now Escalante Designs), most 12" drivers in the high end world have a response time of 5000 µS or slower (2500 µS for pro-sound drivers—which tend to sound a bit forward and "sharp."). This 12", in this patented loading, is said to have a rise time of 70 µS! In comparison, "High End" applications using 6.5" drivers typically have a rise time of between 1100 and 1500 µS (or worse, if the designer is not careful); the best 5.25" drivers are typically between 800-1000 µS. This means (as far as "clarity" goes) that this Escalante designed 12" driver can complete more than 11 inclusive excursion cycles while the fastest 5 ¼"s can complete one!
However, even with that kind of speed, the cone itself can't really produce anything above 450 or 500Hz, or so. That's where the dust cap comes in. Tierry says he actually had to design it "from the ground up" because it was acting like an actual dome midrange! He had to design its shape, size, and composition (he uses 3 separate low-q materials, in an attempt to minimize any self-resonances). This dome naturally rolls-in at 500Hz and radiates "omni-directionally" quite well all the way up to about 3200Hz. Since the woofer is rolled off at 2500Hz (700Hz below where the dome begins beaming), the whole system images remarkable well. This "speed" not only helps remove what would normally be the whole radiation issue, but it keeps distortion way down, and increases believable output to an enormous degree.
Αρα ποσο σημαντικο ειναι το response time στα μεγαφωνα, αφου οτι μεγαφωνο, και ειδικα γουφερ εχω δει, κανενα δεν το αναφερει στα specs.
Μηπως ξερετε τι γουφερ φοραει?
σπεσιαλ αναφερει, αλλα τροποποιημενα στην ουσια πρεπει να ειναι.
Εμενα κατι σε Βeyma μου μοιαζουν