多謝 beanbean
M&K show- AVbuzz sunday program
http://www.av100fun.com/viewtopic.php?t=25299
beanbean 寫:Hi, I went to the sunday program, joining the AVbuzz show in the M&K showroom.
I would like to write my observations and opinion. Please excuse my English, and it is in English because I don't want to type so many Chinese.
This is not an offical report, just my feelings. I am only a beginner and I have no golden ear.
The equipments used today are M&K s150 7.1 + mx-350. Room equalization only with Denon 4306 (auto setup with auto eq). DVD player A1xv with Denon link connecting to Denon 4306 as preamp. Power amp using Parasound flagship A51 + A21. The strange thing I see is the placement of mx-350 facing the wall away from the listerning position. If I understand correctly, the wall is not solid concrete and is lining with wood and fabric, with acoustic material and space inside.
beanbean 寫:Before the show starts, the M&K representive describing the new s150, with two switches on the back of the speaker. The switches can change the horizontal dispersion between wide and narrow. The M&K representive said the old s150 can not be change, and the old s150 is narrow dispersion by default ( which is different from MartinTong's s150 because his s150 is wide dispersion-confirmed by US M&K).
Stereo music was played from Net radio and IPOD. I would say the materials they chose instantly gave me a feeling of too much 50 or 60hz. Is it called booming? I don't know. I have limited experience, don't ask me. The bass is not as fast as I heard before from other M&K subwoofer user. But I can't really tell if there are too much 100-300hz because only one song is played.
Upper note extension is limited. Felt like soundstage is not as wide, and not as lively without upper note harmonics. I can't say it is dead, but increase treble tone should improve the situation a bit.
beanbean 寫:After stereo music, next is the Chinese film 猛龍- one of the gunfight scene . Before I went to the show, I watched the whole movie in the morning. The gun fight scene has very good gun popping sounds, to me is very realistic. MP5 sounds different than M4....all guns sounds differently. The scene also has some bomb explosion sounds. The M&K represenative said if the subwooferis put in the corner, it can provide bass with less effort, so we won't need to turn up the volume and the bass reporduction has less distortion. Well, I don't agree on that. I think if you put it in the corner and it is louder, it is louder only on certain hz, for example 50hz. In this case, the rest of the bass will be cover by this 50hz and you need to turn the subwoofer down because it is too boomy........... I might be wrong, because I am only a beginner.
The bomb explosion bass was reproduced pretty good, but the window cracking sounds were not as ear catching, which M&K speakers should be famous for.
beanbean 寫:Another movie played is Flight of the phoenix, the closing scene when their homemade airplace starts and running from the arabs. Right when the scene is played, the background music again made the room very boomy (wrong choice of demonstartion scene). I would say good scene from this movie to demonstrate should be when the plane fly into the storm and flip over. Anyway, after the boomy music, I found another problem. The speech is not as clear. Why why why. Oh, I think maybe because I sit in the back roll.
beanbean 寫:The last piece of demonstration is DTS9- special feature- swedish radio5.1- The run. This piece I had played in my home at least over 20 times. Everytime I changed something new, I played this track. And after playing this track in M&K showroom today, my feeling is:
The subwoofer is not powerful enough for this 400ft area to give enough impact, I felt this because the punching sound, the airplane take off sound, is not as powerful as I expected.
Treble is not high enough, because at the beginning of the car crash should catch ear, but it was not. The sword fight was not catching ear neither.
Side surround is not as loud as surround back, the sound stage is not as wide as I expected in the church, hall.
The bass is not as fast, because the crashing sound in the banquet was not punchy.
Wow, I think I said too many bad things already. Sorry
This concluded my feelings. One more thing, the M&K representative said push-pull design is for compressing air inside the speaker box to produce bigger powerful sound, but I thought push-pull is designed for fast bass.......... maybe I am wrong.
All of my feelings were based on todays setup only, and I haven't have the chance to try their parasound preamp with active s150p. Maybe next time. Thanks for listerning.
附上中文翻譯
內容未經beanbean教對及審核,
一切以英文版本為準
多謝beanbean
beanbean 寫:
Hi, 我去了星期日節目, 參加AVbuzz 在M&K 陳列室的示範。
我希望寫下我的觀察和看法。 請體諒我的英語, 並且這是用英語寫下因為我不想要鍵入許多中文字。
這不是一個官方正式的報告, 只是我的感覺。 我只是一名初學者並且我沒有黃金耳朵。
今天被使用的設備是M&K s150 7.1 + mx 350 。房間均衡(Room equalization )只用Denon 4306 (自動設定於自動eq) 。
DVD 機是 Denon A1xv用Denon link連接到Denon 4306 作為前置放大器。 功率放大器使用Parasound 旗艦A51 + A21 。
我看奇怪的事情是mx-350的擺放位置是面對牆壁離開聆聽位置。 如果我瞭解正確, 牆壁不是堅實混凝土而是襯上木頭和織品的,裡面有隔音材料和空間。
在示範開始之前, M&K 代表描述新s150, 有二個開關在音箱的後面。 開關可以改變水平寬和狹窄之間的分散作用(wide and narrow dispersion)。
M&K 代表說舊款s150 是無法變動的, 並且舊款s150 是採用狹窄的分散作用(與MartinTong 的s150 不同,因為他的s150 是寬分散作用經由美國M&K證實) 。
立體聲音樂從Net radio和IPOD播放 。 我會說他們選擇的材料立即給了我許多50 或60hz 的感覺。 它是叫booming嗎?
我不知道。 我經驗有限, 不要要求我。 低音不是一樣地快速不是像我以前聽到其它 M&K subwoofer 用戶的而言。
但我無法真正地告訴這有許多100-300hz 因為只有一首歌曲被播放。
高音調(upper note)伸廷是有限的。 感覺像音場不夠寬, 並且不是很活潑欠缺高音調泛音。 我無法說它是死的, 但增大高音音調(treble tone)情況應該會改進一點。
在立體聲音樂以後, 其次是中文影片猛龍 - 一幕槍戰場面。 在我去展示之前, 早上我觀看了整套電影。
槍戰鬥場面有非常好槍爆破的聲音, 對我來說是非常真實的。 MP5聲音不同於M4....所有槍聲聽起來不同。
那場面並且有一些炸彈爆炸聲音。 M&K 代表前述如果低音箱置放在角落, 它可以用較少能量提供低音, 如此我們將不需要扭大音量並且產生的低音有較少變形(distortion). 但是, 我不同意那。
我認為如果您放置它在角落它是更加大聲的, 它的大聲只在某些赫茲(Hertz), 例如50hz 。
在這種情況下, 剩餘的低音將由這50hz蓋著, 並且您需要調低subwoofer音量因為它太boomy........... 我也許錯誤, 因為我是個初學者。
炸彈爆炸低音是被再重現得相當好, 但窗口裂化的聲音不像是很悅耳, 哪應該是M&K 音箱盛名的。
其它被播放電影是Flight of the phoenix, 是結束的場面由當他們的自製飛機開始和逃離阿拉伯人。
正當場面被播放, 背景音樂再使房子非常boomy (示範場面選擇錯誤) 。
我會說這部電影較好示範面應該是飛機飛入風暴和反轉。 無論如何, 在boomy 音樂以後, 我發現了其它問題。
對話不清楚。 為什麼為什麼為什麼。 噢, 我認為因為可能我坐在後排。
最後示範片斷是DTS9- 特別登載-swedish radio5.1- 奔跑。 這個片斷在我的家我至少播放了在20 次遍。
每次我改變了新設定, 我會播放這個片斷。 並且今天在M&K 陳列室裡播放這片斷以後, 我的感覺是:
subwoofer 沒有足夠強有力量使這400ft 區域給予足夠的衝擊, 我這感覺是因為猛擊的聲音, 飛機起飛聲音, 不是像我期望一樣強而有力的。
高音不夠高, 因為在車禍的開始應該悅耳, 但它不是。 和劍戰鬥兩者都不悅耳.兩旁環繞(side surround)不像后環繞(surround back)一樣的大聲, 音場不像是我期望的在教會裡, 大廳一樣寬。低音不快速, 因為在宴會的碰撞聲音沒有魄力。
哇, 我認為我已經說了許多件壞事。 抱歉
這結束我的感覺。 再多一件事, M&K 代表前述推挽式(push-pull)的設計是為了音箱裡面的空氣壓縮而產生更強而有力的聲音,但我認為推挽式為快速的低音而設計.......... 可能我錯誤。
所有我的感覺是基於今天的設定而已, 並且我有沒有機會嘗試他們的parasound 前置放大器與及主動s150p 。
可能下次。 感謝聆聽 。