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optical sau coaxial - JBL escxcite
Last Updated: Sep 12 2007 21:36, Started by
gciubotariu
, Sep 06 2007 11:33
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#1
Posted 06 September 2007 - 11:33
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Salut
Intentionez sa-mi cumpar un sistem 5.1 JBL escXcite care drept intrari are doar: analogic - AUX unde sunt 2 mufe RCA - TV unde sunt tot 2 mufe RCA digital - OPTICAL o singura mufa patrata (asemanatoare miniusb) - COAXIAL o singura mufa gen RCA Buuun, sistemul este 5.1 si intentionez sa il conectez la un mediacenter si vreau sunet 5.1 (in filme, jocuri etc) CUm se conecteaza, pentru ca eu pana acum conectam prin cabluri analogic cu 6 mufe rca. Sau sistemul nu stie 5.1 curat si il preia din stereo si il manareste el cumva incat sa sune ca 5.1? Daca se poate 5.1 curat, exista placi de sunet care sa scoata ce vrea JBL? Adica mufe similare pt. coaxial sau optic? http://www.jbl.com/h...;CheckProduct=Y |
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#2
Posted 11 September 2007 - 07:42
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Daca mediacenter-ul tau are iesire pe Digital (coaxial sau optical) ia-ti un cablu audio OPTIC. Nu trebuie decat sa-l conectezi la iesirea din mediacenter si intrarea din subwoofer, acolo unde ai tu partea cu conectica. Din ce am vazut in manualul lui, sistemul ala 5.1 are o intrare pe Optical. Acolo bagi mufa.
In rest nu te agita sa selectezi tu manual DD sau Stereo sau DTS, pt ca o va face el singur pe Optical (va comuta automat, in fct de tipul semnalului pe care il simte pe fir). Oricum fii atent la puterea sistemului declarata de JBL: Built-in Power Amplifier (RMS) 25 Watts x 5 + 60 Watts. Acum citeste si asta: Continuous power is often referred to as "[true] RMS power", although this is technically incorrect: while RMS (Root Mean Square) power is a valid quantity, it is neither useful as a measurement nor what is intended by those who use the term. The sine wave power is found by averaging the instantaneous power output over either a long period of time ('continuous or RMS power') or one complete cycle ('music power'), so it is actually the average power or mean power. For a resistive load such as most loudspeakers the average power is the product of the RMS current and RMS voltage. To get an idea of the relationship between PMPO watts and watts "RMS", consider the following numbers advertised for some current loudspeakers. These models have been selected at random, and inclusion in or exclusion from this list is neither a recommendation nor a criticism. Teac PM-100 3D surround-sound speakers: 16 W RMS, 180 W PMPO Kinyo "200 W" PC speakers: 3 W RMS, 200 W PMPO Philips Fun Power Plus MMS-102 PC speakers: 10 W RMS, 120 W PMPO (The Philips data sheet mentions only the "RMS" value; the PMPO value is claimed by retailers.) This list shows that PMPO figures are hugely exaggerated compared with the "RMS" values used by professionals. It also shows that there is little consistency in how much the figures are exaggerated making them almost totally meaningless. Cu alte cuvinte, in realitate sistemul tau va avea mult mai putina putere REALA decat cea declarata in RMS. |
#3
Posted 12 September 2007 - 21:19
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Multumesc pentru explicatii.
Oricum, sunt din ce in ce mai dezamagit de JBL, si nici nu am gasit o placa de sunet decenta pt. digital. asa ca... poate z5500? :) |
#4
Posted 12 September 2007 - 21:36
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