Statai antrą subą priešingai jam :) 1. http://www.audioholics.com/tweaks/get-good-bass/subwoofer-placement-the-place-for-bass-part-1 2. http://www.audioholics.com/tweaks/get-good-bass/subwoofer-connection-guide 3. http://www.audioholics.com/tweaks/speaker-setup-guidelines/crawling-for-bass-subwoofer-placement Galima skaičiuoti tuos, ilgius, bet praktikoje viskas susives į subo pastatymo vietą, krossoverio, fazės-vėlinimo nustatymą ir aišku EQ (equalization-išlyginimą). Kam sau saukti galvą su šiais nustatymais, apart pastatymo vietos, kai, kaip jau čia minėjau, EQ kalibravimas pakankamai gerai-l. gerai tai padaro už tave ;/ P.s.: mano nuomone, jūs abu klystat, kad garso banga išeina iš kambario. Kiek aš suprantu, ji atsimuša į sieną kaip ir kitos dažnių bangos. Iš knygos skyriaus apie žemų atkūrimą: "The mechanism responsible for the resonant behavior, a perfect constructive interference between sounds traveling between and among two or more room boundaries, creates what are known as standing waves" "To compute the frequencies at which axial standing waves occur, simply measure the distance between the walls (this is one-half wavelength of the lowest resonance frequency), multiply it by 2 (to get the wavelength), and divide that number into the speed of sound in whatever units the measurements were done (1131 ft/s, 345 m/s). The result is the frequency of the fi rst-order mode along that dimension. All higher-order modes are the result of multiplying this frequency by 2, 3, 4, 5, and so on. Example: A room is 22 ft long. The fi rst-order resonance occurs at 1131/44 = 25.7 Hz. Higher-order resonances exist at 51.4 Hz, 77.1 Hz, 102.8 Hz, and so on. Do this for the length, width, and height of the room, and all of the axial modes will have been calculated" "How far the subwoofer should be from the listener is a bit different because, from 150Hz down, the lower the frequency, the harder it is to determine the source of the sound. As the lower limit of human hearing (20Hz) is approached, it becomes nearly impossible to locate a subwoofer by sound alone: the wavelengths are so long that they become nondirectional, or omnidirectional. Not only does this mean the subwoofer doesn’t need to be placed near the main speakers (i.e., at the front of the room), it also means that it can be placed closer to the listener, if that placement gives the most even frequency response." (iš čia: http://www.psbspeakers.com/audio-topics/How-to-Set-Up-a-Subwoofer-Placement-Basics) "Signalizacija" <signalizacija.master@gmail.com> parašė naujienų news:ha51lf$n6u$1@trimpas.omnitel.net... > gerai bandau aiskintis > 30Hz bangos ilgis 11.43m > 40Hz bangos ilgis 8,57m > 50Hz bangos ilgis 6,86m > na ir t.t. > ka cia galima pakeisti, kad tas galas kambary liktu? > > "Zose" <Nera@jokio.lt> wrote in message > news:ha41k7$341$1@trimpas.omnitel.net... >> matau kad nesusipratelis kazkoks esi, toij isaiskinsiu: >> gali but tokia ilga banga, kad pas kaimynus jos galas atsiras. >> ar supranti?