- #77 [38super], 11-07-08 22:23
- #76 [孟波], 11-07-08 20:20>>>why cant amps deal with phase shifts? does phase shifts affect voltage? current? resistance? or what? >>>
哈哈!呢次你重唔露出馬腳!
再問你一次,你到底知唔知呢條相位曲線代表乜既? - #75 [孟波], 11-07-08 20:16cpu8088你咪擾亂視聽啦,我每晚都係度等你隻縮頭烏龜上黎直到12點訓覺,我唔同你無所事事,日頭要返工,你係我返緊工既時間上黎梗係唔得閒x你啦,晏晝點半係度學人叫陣。
尋晚你成晚去左邊呀?睇時間就知邊個係縮頭烏龜啦。
咁多日你仍然未搵到人教路呀?咁又係,你係網上都咁乞人憎,現實世界都會係隻過街老鼠。
自己上網搵料又睇唔明,卡卡,你真係廢呀!
最後修改時間: 2011-07-08 20:28:09 -
- #74 [cpu8088], 11-07-08 19:41"""you like to criticize people,"""
did i criticize u? as a person? dont get mixed up. i only queried your statement and nothing personal.
regarding your statement i cannot buy that phase shifts of speakers has anything to do with speakers hard to drive.
big swings in phasing means the speaker is poorly designed.
"""amplifier cannot deal with phase shift problems"""
why cant amps deal with phase shifts? does phase shifts affect voltage? current? resistance? or what?
最後修改時間: 2011-07-08 19:49:51 - #73 [faimiu], 11-07-08 18:53cpu ching
you knew the answer already - amplifier cannot deal with phase shift problems.
But is my statement wrong? -"speakers with volatile changes in impedences or irregular phase shifts over the frequency range are not easy or "friendly" to deal with"
That is exactly my point - you like to criticize people, and that is not a desirable behaviour.
Time to say goodbye la... - #72 [cpu8088], 11-07-08 18:19"""- in general, speakers with volatile changes in impedences or irregular phase shifts over the frequency range are not easy or "friendly" to deal with"""
impedance not impedence is a factor due to demand of current, but irregular phase shifts has anything to do with how hard to drive? what makes u think changing amps can correct phase shifts against different frequencies?
最後修改時間: 2011-07-08 18:30:15 - #71 [MDLP], 11-07-08 18:15刀仔無去串過人
最後修改時間: 2011-07-08 18:15:58 - #70 [hiphopzz], 11-07-08 18:128088 + 6410 = 天生一對, 直頭係複製人一樣
................................................................
唔係wor.... 我覺得佢同"刀兄"先係天生一對wor...
可惜大家唔同台.....
@@" - #69 [faimiu], 11-07-08 18:10Leaving aside all the disturbances... Just some personal opinion on the original post.
- I appreciate the efforts of the writer, but i have different thoughts
- BBC LS3/5a is an important pair of speakers in the audio industry. It has its own constraints, as it was originally intended for voice broadcast. Yet it has surprisingly accurate mid range. I have experienced superb LS3/5a performances with subwoofers.
- in general, speakers with volatile changes in impedences or irregular phase shifts over the frequency range are not easy or "friendly" to deal with
- I tend to support that fact that speakers with ~90db sensitivity are relatively easy to drive. This is a factor to consider for AV speakers, cos most AV amplifiers are not really powerful to fully exploit the speakers' capability.
Beware that speakers with over 100db i/p sensitivity could be a bit too sensitive to noises
- to only allow 8ohm speakers, 90W amplifiers, 90db sensitivity speakers are questionable. Hi-end speakers demand for other high end gears to work collaboratively to produce best performances. i.e. you cannot expect top gears to be cheap anyway.
最後修改時間: 2011-07-08 18:20:49 - #68 [MDLP], 11-07-08 18:01using foul language?
incorrect ideas ?
posting erroneous statements ?
最後修改時間: 2011-07-08 18:02:08 - #67 [cpu8088], 11-07-08 17:48faimiu
actually u can count only just so many against me. u will notice those are the ones that like to use foul language, have incorrect ideas and posting erroneous statements.
heated discussions is abound in internet forums. u can get used to it. - #66 [faimiu], 11-07-08 17:40CPU
It is your altitude that attracts attack. It is not related to whether you (or your theory) is right or wrong. You are perceived as the one who likes to critize others. You are building enemies everywhere - you better overcome this ego.
You have strong beliefs that there is no problem with your critizing behaviours - But then why so many people against you? - #65 [cpu8088], 11-07-08 17:33"""nor dare to point out what's wrong with Man Ball""" ???
have u read all the posts here? there is nothing wrong with man ball only his statement. - #64 [cpu8088], 11-07-08 17:31defeated by nar and man ball???
why i dont have the feeling of being defeated?
on what subject? or by their bull and incorrect statements?
did i post a photo of mouth to mouth? showing your relationship with your dear friends nar and man ball?
oh i remember now u are the one when arguments lost then resort to using foul language. get real george u are not a well educated person.
最後修改時間: 2011-07-08 17:37:01 - #63 [george1977], 11-07-08 17:26Seems to me that you never learn from previous lesson after being defeated by NAR and Man Ball, just keep crashing your head against the wall ....
Never give an answer nor dare to point out what's wrong with Man Ball - #62 [cpu8088], 11-07-08 17:20"""why do think you are qualified to seek other rendering explanation"""
as a member of r33 i like to tell other members not to blindly follow the blinds.
these type of discussions exist everywhere in other discussion forums. if u have experience in other forums u will know. but sadly u have inadequate experience in this regard.
lol - #61 [cpu8088], 11-07-08 17:04george
i would say u know that man ball's statement was wrong thats why u need to support him. if his statement is technically correct then there is all to see and will not attract criticism.
be a good friend of man ball and help him to admit his mistake and retract his misleading statement.
what i use or dont use has nothing to do with this thread.
最後修改時間: 2011-07-08 17:06:16 - #60 [george1977], 11-07-08 16:48CPU still fail to explain your rationale and to tell us what speaker and gears you are using
This is a world with "Give and Take", why do think you are qualified to seek other rendering explanation, yet you fail to do it on your part?
What a kidding and yellow chipset! KA KA KA
最後修改時間: 2011-07-08 16:50:10 - #59 [k.c], 11-07-08 16:37呢個建議幾爽:
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小功率匹配高效率
為了避免浪費能源,及得到正確的搭配,我個人有兩點偉大的建議,但需要全球音響界認同:一、效率低於90dB的喇叭,不准製造、銷售、進/出口,而且阻抗應盡量恆定於8Ω;二、高過90W輸出─8Ω/ch─的後級/綜合擴大機,不論晶體管、真空管,也是不准製造、銷售、進出口(當然,專業器材不受以上的限制)。
果真如此,則Dynaudio、VIFA、ETON…等著名喇叭廠,就會開發出不是號角型,而且體型又不很大的高效率喇叭。又因擴大機輸出功率降低,電源變壓器、濾波電容…都可減小,故材料成本、重量、體型及售價都可降低,這絕對是消費者、愛樂者之福。您說對嗎?
copy from :
http://bbs3.gogo.la/viewthread.php?tid=94183 - #58 [cpu8088], 11-07-08 16:24come on man ball be a big man and admit your mistake.
your mouth to mouth friends cannot help u in substantiating your nonsense and misleading statement. - 下一頁 (3 of 6)
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Sound System Design and Optimization - McCathy
about HK$ 600.00 each, you will fill more about speaker phase shift vs frequecy, worth buying^^