後牆不是石屎牆，請教

musicolic

牆穌在後牆，聽歌時我將手放在後牆無意中發現後牆在震，後牆是花式牆，用木板做成，不是石屎，這樣會否衰聲和不穩定的原因??

timmywan

底音定位會無甘清晰

racewong

timmywan 發表於 2013-3-23 19:28
底音定位會無甘清晰

我很同意!, 由其樓主對喇叭咁近後牆, 影響應該會更大.

feellikecyber

師兄, 小弟覺得要看整體間格和佈局.....(本人後牆也是花式牆也)

timmywan

因為低音要靠後牆反射形做能量，後牆唔夠實淨會化解部份低音
加上後牆共震影響低音定位

mahi

美國加拿大Dhouse絕全都系木板做牆，房間特點系低音走得快（另高中反射相對少D），所以美製啦叭好多時會設計得低音多D來就翻。dave wilson講過所以好多時他的喇叭去到亞州用會變得低音過多，因這里都是小空間和石屎牆。

講甘耐係想話，setup hifi其中一環就是要配合房間特性，所以都無話木板間就一定吾典，是事在人為。

mahi

不過你摸到有野震就當然要搞搞它！

kmg

應該沒到衰聲這麼嚴重吧?!

feellikecyber

mahi 發表於 2013-3-23 23:33
美國加拿大Dhouse絕全都系木板做牆，房間特點系低音走得快（另高中反射相對少D），所以美製啦叭好多時會設 ...

師兄,此言甚是

t1174

不過點改呢，入吸音棉，加擴散板?

OldHenry

t1174 發表於 2013-3-24 09:27
不過點改呢，入吸音棉，加擴散板?

千奇唔好加得大多吸音棉，會吸走晒D高音尾音

Law記

Musicolic兄唔提都冇發覺我屋企都有呢個情形

calcal

其實後牆同喇叭距離太近一般都會有呢個問題. 真係幾難搞!

musicolic

其實我係指震盪會震到個牆穌，影響供電。

我用3m隔音貼在門隙，以隔走廊聲，點知低音好左，背景亦靜左。

wttam

musicolic 發表於 2013-3-24 18:30
其實我係指震盪會震到個牆穌，影響供電。

我用3m隔音貼在門隙，以隔走廊聲，點知低音好左，背景亦靜左。 ...

CHING，3M隔音貼邊道有得買？容易整嗎？

musicolic

日本城或家品屋

hsbkl

咁背後距離10幾尺先有牆, 係好處定壞處多?

hahayanyan

mahi 發表於 2013-3-23 23:33
美國加拿大Dhouse絕全都系木板做牆，房間特點系低音走得快（另高中反射相對少D），所以美製啦叭好多時會設 ...

this is why...Wilson's Speaker have different resistor value for the bass for different parts of the world, and it is fun to play around those resistors  , not only the Bass but also the treble...

hahayanyan

we should able to hear the different after we use different kind of "Cable Elevator"
i DIY a few Cable Elevators.., it is noticeable.... before and after ...less background noise..and why not..

based on that..i suppose having a rigid power supply socket and having less vibration..should make a different too..

hahayanyan

OldHenry 發表於 2013-3-24 11:35
千奇唔好加得大多吸音棉，會吸走晒D高音尾音

make it more rigid.., double layer? reinforcement? ...etc.., it is almost day n night different for image quality if that "wall" is rigid, especially..the speaker is so close to the wall

Pro and Con about a speaker at 10ft away..? I have freedom from 2 ft to 11ft..and now..my speaker is 10Ft away....  i like the tonal balance at 10ft away, it is of coz speaker dependent

i would said.., 10 ft away is less "truth" , but...FUN...very HIFI but not that turth..

we may also notice Dave Wilson Room is big.., pair of XLF witha Pair of Hummer.., but why he dose not place the XLF at 10ft away.., i suppose it is because of Density of image is closer to the truth at such distance but not 10ft 11 ft away  

it has right and wrong.., and which one is closer to the "live" sound , however i suppose someone prefer sitting further away or even at the corner for live performance..  haha

in a room, there is always a position which is closer to the "live" sound , and a position of very hifi sound..and many positions of not so good sound too