PCDVD¼Æ¦ì¬ì§Þ°Q½×°Ï

PCDVD¼Æ¦ì¬ì§Þ°Q½×°Ï (https://www.pcdvd.com.tw/index.php)
-   ­µ®Ä°Q½×°Ï (https://www.pcdvd.com.tw/forumdisplay.php?f=6)
-   -   ¤@¸U¤G¶R¤£¨ì®a®x¼@°|³â¥z?? (https://www.pcdvd.com.tw/showthread.php?t=148291)

ups 2002-11-01 12:27 PM

¥Îar edeg*5¥[¤@°¦¤£¿ùªº­«§C­µ---´N¥i¦³«D±`¤£¿ùªº¼@°|®ÄªG¤F¡I¦n½Õ¾ã¤½¦¡ºâºâ¬J¥i¡I

¤½¦¡¦A¶K¤@¦¸ÁÙ¦³°ÝÃD¦b°Ý¦b¤U¡I
³â§a­µÀ£­pºâªk¥H¥þAR EDEG¬°¨Ò91db/m/w¥Î¨ä¥L³â§a½Ð¦Û¦æ±a¤J¬J¥i¡I

¨Ò¦p«e¸m¨ì²âÅ¥ÂI¬°3.5m¤¤¸m¬°3m«á¸m¬°1.5m
©Ò¥Hµ¥©ó¥H¤U
1,«e¸m¨ì²âÅ¥ÂIªº­µÀ£¬°91-20log2.5m(¬°¦ó¬°2.5m£z¦]¬°91db¬Oedeg 1m/wªº­µ­µ»Ý¥ý¦©°£1m)=91-7.959=83.041db³o¬O¨ì²âÅ¥ÂIªº­µÀ£¡I
2,¤¤¸m91-20log2=91-6.02=84.98db
3,LJ˙91-20log(1+0.5/2)=91-1.938db=89.062
¤j³¡¤À­µÀ£½Õ¾ã³£¬O¥H«e¸m¬°°ò·ÇÂI´N¬O¦h¥X«e¸m¡©©Î¥H­µÀ£³Ì¤Ö¬°°ò·ÇÂI¡A¦ý¥ç¥i¨ú­µÀ£¤¤¶¡­È¬°°ò·ÇÂI¡ª¥H­t¼Æ½Õ¾ã¤Ö«h¤Ï¤§
©Ò¥Hµ¥©ó¥H¤U
«e¸m=¡©¦¹®É«e¸m¤º°Ñ¼Æ¬O³]¹s¬°°ò·ÇÂI¡ª
¤¤¸m=83.041-84.98=-1.939db
LJ˙=83.041-89.062=-6.579db
¡·¦ý¥ç·|¦³¤H½èºÃ¨ä·Ç½T©Ê¡A³o¤]¬O¹ïªº¦]¬°¨C°¦³â§aªº­µÀ£¬Ò¦³»~®tÁÙ¦³ªÅ¶¡ªº¼vÅT¤]«Ü¤j¤×¨ä¬O§C­µ¡A¦ý¤p³â§a¥H¦¹­pºâ¿é¤J°µ¨Ç+/-¤@¨âdb­×¥¿¬J¥i±o¨ì
¤£¿ùªº®ÄªG¦pÁÙ¤£¦n¨º´N¬O³â§a¯uªº¤£¦æ©Î­n¥Î¨ä¥L­×¥¿¤è¦¡©Î¬O·f°t°ÝÃD¡©Áp¦X°ê¦¡ªº³â§a°tªk¦ý³o¤]¤£¤@©w¡I¡ª©Î¬OªÅ¶¡¤Ï®g¯uªº¤Ó±j¨ÏµM......¡C
©Ò¥H¥H¦¹¤è¦¡¦b¨S¦³­µÀ£­pªº«e´£¤§¤U´£¨Ó°ª­µÀ£³]©wªº·Ç½T©Ê¡I¡C

PS LOG¨ç¼Æ¤£¯àµ¥©ó1,·í¤p©ó¤G¤½¤Ø»Ý¥ý´î¤@¤½¤Ø¡©°ò¦­µÀ£¶ZÂ÷¡ªµM«á¦A°£¥H¤G==¨Ò¦p«e¸m1.5¤½¤Ø==1.5-1¡©°ò¦­µÀ£¶ZÂ÷=O.5µM«á===20 LOG 1+(0.5/2)=20 LOG 1.25=1.938°I´î¶q

ÁÙ¤£¤F¸Ñ¶Ü¡HCALL§Ú0932957203
ÁÙ¤£¦æ´N¬O³â§a¸òªÅ¶¡ªº°ÝÃDÁM¬Û«HEDEG¥Î¦¹¤½¦¡³£·|·Ç¤~¹ï¡AÁÙ¤£¦æ¨ä¥L´N­n¥Î¥t¥~ªº¤è¦¡ÁM¡I

stan70 2002-11-02 08:44 PM

¤Þ¥Î:
Originally posted by catch

¹wºâ¦h¤Ö¥[ÂI,¶RA1 ©Î¬OAR¨t¦C
¤£­n¦]¬°¤@®Éªº½Ä°Ê, ÀH·N¶R¤U¥i¯à·|Åý¦Û¤v«á®¬ªºªF¦è
¤Z¨Æ¤£¥Î«æ, ¤j¤£¤F¤@¹ï¤@¹ï³o¼ËºCºC¶R´N¦n¤F:)
»À¤HªºÆ[©À¬O:ªF¦è¨ä¹ê¤£¤Ó»Ý­n¤@¦¸¨ì¦ì, °£«D¹wºâ§¹¥þ¨¬°÷,§_«h¤£­n»´©ö¤U¤â

catch¥S»¡ªº¦n,¤@¤ß·Q¦b·h®a«e,·Ç³Æ¦n³]³Æ,§Ñ¤F¤Z¨Æ¤£¥Î«æ, ¤j¤£¤F¤@¹ï¤@¹ï³o¼ËºCºC¶R´N¦nªº¤j­ì«h
¤Þ¥Î:
Originally posted by Ivy Jan
SR5200 ±ÀS520ªºÁn­µ·|¤ñ±À¦è¹çµPªºÁÙÄê
³o¬O¤Á¨­¤§µh.........·í¤@¹ï¦è¹çµP¦A¤j®a²´«e¬¡¥Í¥Í¤K±¼S520....
¤ßµh

¨þ!¨þ!¨º§Ú¨M©w­n¥hťť«¥­Ì°ª¶¯ªø©úµPªº¬Ý¬Ý

·PÁÂashuro¥S
Pantiacªº«e¸m¯u¬Oº}«G,´N¬O³ßÅw³o«¬°ª°ª½G½Gªº
¡@¡@¡@¡@¤¤¸m,Àô¶¥u¦³40w,·|¤£·|«Ü©_©Ç
Buck¤Q¶g¦~¬ö¦~T-¨t¦C,´X¤Ñ«e¤w¸gµo²°T°Ý³W®æ,¤£¹L»¡­n½Ð¤H¥Nµª,µM«á´N¨S¤U¤å¤F,
¡@¡@°ª­µ³æÅé´Â¤ÑªáªO,:confused: ,¦³¾÷·|¥hťť¬ÝÅo¡I
ARªºEdge ¼È®É¤£¦Ò¼{,ÁöµM¦WÁnÅT«G,¦ý¬O,¦n·Q­n¤j¤@ÂIªº«e¸m©O

·PÁÂsoccer¥S´£¨Ñonix¨t¦Cªº¡A¤K¤d..................

¤Þ¥Î:
Originally posted by Kev
ÁÙ¦³ARªºPerformance¨t¦C¤]¦b³o»ù®æ¤º³á.
½æ¬Û¤]¤£¿ù. ¥D³â¥z¬Ý°_¨Ó¤]¦³"ªO".
¼@°|ªº®ÄªGÁÙÆZ¤£¿ùªº.
¦³¦h¾lªº¹wºâ¦b²KÁʤ@Áû­«§C­µ®ÄªG·|§ó´Î.

Kev¥S,¦h»¡¤@¨Ç¹À!ARªºPerformance¨S·§©À­C!­«§C­µ¬O¦³¤F

¤Þ¥Î:
Originally posted by KGV
³Þ~ stan70:
§A¬O­n¬Ý°_¨Ó¤]¦³"ªO¶Õ"ªº¹ï¤£¹ï!?
»ù®æ¤£¯à¤Ó¶Q;Án­µ¤]¤£¯à¤Ó»¹.³Ì¦nÁÙ¬Oª¾¦W¤j¼tªº...
JBL¦p¦ó?

KGV¥S»¡ªº¦n,JBL¦p¦ó?¶â!§Ú¦A¥h¦h¦s¤@ÂI§a!

Tomacx 2002-11-03 01:29 AM

¤p§Ì­Ó¤Hı±o³â¥z¨Ã¤£¤@©w¶R¥þ·sªº°Ú!§Ú·|
¸ÕµÛ§ä¤@®M¤G¤âªº¬O³Ì¦³¸gÀٮįqªº©O?
(¦Ó¥B¤]¤£¥Î¦ARUN IN):D

KGV 2002-11-03 02:40 AM

stan70:
§Ú°O±o§A¦n¹³¦³­«§C­µ;ÁÙ¬O§Ú°O¿ù¤F?

ÎNÎN Sonic Ron 2002-11-03 03:45 AM

³â¥z¯u£x«Ü­«­n¡ã¦h¦sÂI¿ú¶R¦n¤@ÂI£x¡ã¤@³Ò¥Ã§Ð¡ã
¦Ó¥B³â¥z¤£¥Î¸Ñ½X¡ã°£«DÃa±¼¡ã§_«h¤£¥Î©È²^¨O¡ã:D

soccer 2002-11-03 09:42 AM

¸É¥R¡G

¦pªG¬O¥Hav¾÷¬°¥Dªº¸Ü¡A°O±o¶R¦n¡u±À¡v¤@ÂIªº...........

stan70 2002-11-03 11:41 PM

¨ÓËç!À°§Ú¬Ý¤@¤U,JBLªº®@!
ùþJBL¥D³â¥zJ900MII¡C
¤T­µ¸ô¤T³æÅé ¡B«á§C­µ¤Ï®g¦¡ ¡BÀW²vÅTÀ³35Hz - 25kHz 8 ohmsªý§Ü¡B91db120W¥\²v¡C
ùþJBL¤¤¸m³â¥z J40¡C ¡B¨¾ºÏ³]­p¡B ¤G­µ¸ô¤T³æÅé¡B 80W¥\²v¡C
ùþJBLÀô¶³â¥z¡B ¤G­µ¸ô¤G³æÅé¡B 40W¥\²v ¡C
ùþJBL¥D³â¥zJ900MII 266 x 855 x 260mm¡C
ùþJBL¤¤¸m³â¥z J40 250 x 150 x 160mm¡C
ùþJBLÀô¶³â¥z 160 x 150 x 250mm¡C

³oºâµsÃì¹Ï¤ù§a!¥ý¤£ºÞ,¦³¤H§Üij¦A»¡


TO:KGV¥S
­«§C­µ¬O¦³ªº,¤p§Ì¸Ô­z¤@¤U
¥Ñ©ó®a¸Ì¦³¥|Áû12"³æÅé,©ó¬O§ä¤F¤@Áû¤]¬O4¼Ú¥À,©MT-320«Ü¹³ªº,¹ï·Ó·Ó¤ù¯uªº«Ü¹³,¦Ó³æÅé«e¤è¦r¼Ë¤£¬OBUCK,¦Ó¥BÀò±oUPS¥SÀ°¦£,¶i¤FÁû¨S¦³³æÅ骺T-320
©ó¬O,§Ú¿W¤@µL¤Gªº­«§C­µ´N¦¹½Ï¥Í

ups 2002-11-04 12:10 PM

stan70¥S
\\¤£¬OBUCK,¦Ó¥BÀò±oUPS¥SÀ°¦£,¶i¤FÁû¨S¦³³æÅ骺T-320
©ó¬O,§Ú¿W¤@µL¤Gªº­«§C­µ´N¦¹½Ï¥Í
¡·´N¬O§A¼Ú¡I¦n¤[¨S¨£¡I:)

KGV 2002-11-04 01:41 PM

¤Þ¥Î:
Originally posted by stan70
¨ÓËç!À°§Ú¬Ý¤@¤U,JBLªº®@!
ùþJBL¥D³â¥zJ900MII¡C
¤T­µ¸ô¤T³æÅé ¡B«á§C­µ¤Ï®g¦¡ ¡BÀW²vÅTÀ³35Hz - 25kHz 8 ohmsªý§Ü¡B91db120W¥\²v¡C
ùþJBL¤¤¸m³â¥z J40¡C ¡B¨¾ºÏ³]­p¡B ¤G­µ¸ô¤T³æÅé¡B 80W¥\²v¡C
ùþJBLÀô¶³â¥z¡B ¤G­µ¸ô¤G³æÅé¡B 40W¥\²v ¡C
ùþJBL¥D³â¥zJ900MII 266 x 855 x 260mm¡C
ùþJBL¤¤¸m³â¥z J40 250 x 150 x 160mm¡C
ùþJBLÀô¶³â¥z 160 x 150 x 250mm¡C

§Ú­è­è¥h®õ¤@Å¥JBL LX2005(¤£ª¾¹D¦³¨S¦³°O¿ù)
ÁÙ¬O¤@¥y¸Ü:¶W­È!:)

stan70 2002-11-04 01:55 PM

¬Oªº,´N¬O§Ú,¦A¦¸·PÁÂUPS¥S¬Û§U

¨º®É¬Æ¦Ü¦³ºØ·Qªk
·s´ÚT-320®t§O´N¦b³æÅé,´ڬO¥W¬Ö,·s´Ú¬O¥­¬Ö,¦Ó¥B·s´Ú®ÄªG§ó¨Î
³o¼Ë´ګȤá´N¥i¥H¥u¶R³æÅé,¶i¦æ¤É¯Å
­ì¥»·Q¤½©Æ³o­Ó¦n®ø®§,¦ý¦Ò¼{¨ì¤]­nUPS¥SªÖ,¦Ó¥B·s´ڮɻڤW®t¶Z¦³¦h¤Ö§Ú¨Ã¤£½T©w,©Ò¥H´N¦¹½}¤â


©Ò¦³ªº®É¶¡§¡¬°GMT +8¡C ²{¦bªº®É¶¡¬O08:04 PM.

vBulletin Version 3.0.1
powered_by_vbulletin 2025¡C