2008年8月12日 星期二

ATC SCM 20T




ATC(Acoustic Engineers)仍聞名世界的著名鑑聽揚聲器廠家,早年專做Studio(錄音室)之生意,而這些採用ATC作為鑑聽喇叭的公司計有---錄音室: BBC英國廣播電台、丹麥國家電台、英國Themes電視網、EMI、香港寶麗金、中國廣東電台;古典音樂:Nimbus Records、英國皇家歌劇院、三藩市弦樂團;流行樂:Pink Floyd、Mike Oldfield;音響界:van den hul、Dan D‘Agostino (Krell設計者),他們全部皆非泛泛之輩,追根究底,ATC到底有何煞食之處,讓它有本事令如此多的權威音響設計師與著名錄音公司樂意採用呢?答案就是ATC工程師Billy Woodman所研製出的那一顆天下無敵的著名75mm半軟球形『中音王』,此單元中頻厚度無敵,分析力超強,而且音質密度非常之高,質感好到無人能取代,在舉世單元素質當中,ATC這一顆『中音王』可說是前無古人,後無來者之驚世之作!
然而ATC喇叭進軍民間Hifi市場亦只不過是近十年之事,為迎合一般家居環境使用,
廠方特別為ATC設計出一款與其『中音王』連接在一起的『整體』低音單元,然後再裝
在一個甚小的聲箱上,結果這一型號甫一出道,立刻一炮而紅,迅速被各地權威寫手齊
聲讚好,論者一致認為此喇叭中低頻衝擊力強橫,中音質感無敵,結像力與『耐爆』度
都達致同體積聲箱中的最高境界,如事者,這一ATC第一對進軍民用Hifi市場的喇叭仔了
,而這一對至今仍然為人津津樂道的喇叭就是ATC-20了。
隨著ATC-20取得空前絕後的成功後,使得Billy信心大增,接著他又設計出比20更
為嬌小的ATC-10及比20更為大型的座地式喇叭20T,而這兩款喇叭的聲音特質,基本上
與ATC家族的聲底一脈相承,只不過在重播低音素質方面,因體積上的關係,而各有不同
的量感分別而已,由於ATC每出一款民用喇叭都取得同一價位內最靚聲的美譽,促使它在
這一段期間紅透半邊天,與此同時,ATC這一品牌也招惹其他廠家的妒嫉,視ATC為喇叭
製造商的一個勁敵,事隔多年後,ATC喇叭在踏入2000年的今天,其實已無復當年勇,
主要原因,是因為各個用家都指責ATC喇叭,雖然素質非凡,但卻異常大食(即難推)及
高頻有一種不出不出的感覺,總之就是難玩出靚聲的水平。
發展下來,促使ATC各款喇叭頓然身價大跌,個個移情別戀,而獅城代理又因利益上之關
係,而宣佈放棄此品牌的代理權,一時之間ATC各款喇叭身價直線滑落,新淨的ATC喇叭
比正常的市場便宜30%左右,而二手價則全部被折舊到超過50-60%,到底ATC喇叭真的
是如此『乞人憎』嗎?如果不是,那它又為什麼會在星馬兩地落得如斯下場,如果你很
想知道,但又沒有人能告訴你,那本文就是你的『最佳ATC精神糧食』,此精闢文獻裡
我會詳盡的告訴你,它好在那裡,衰在何方及以今日的喇叭素質水平而論,它又屬何地
位,大膽的為你指出與劃出並重新探討ATC的魅力之論。
現就請大家揉一揉雙眼,屏息片刻,然後跟隨我進入這一耐人尋味的ATC世界。
我迷上ATC喇叭是在三年前好友以Krell Power Amp來推動一對體積龐大的ATC-100
開始,在當時我被ATC那種忠實、準確、厚潤及雄渾與碩大無朋的中低頻所傾倒迷醉,
剎那間,我有如被此喇叭的聲音特性所俘虜,相比起來,我家那套與LS 3/5A為首的喇
叭仔根本不可同日而言,有了一次美好的經驗,我竟情不自禁的愛上了它,自此之後,
我又聆聽過ATC-20,低頻份量是少了,但其中低頻上段的效果依然無半點『走樣』,神
韻猶存,經此一役,我對ATC喇叭之迷戀程度已達無可自拔的地步,於是乎我就趁用家
拋棄及代理不做的『大好形勢』下,用最低的價位買了一對ATC-20T!
目前ATC-20T已在我家中服役了差不多一年,我前後為它匹配不少器材與接線,從
中所得出對ATC喇叭聲底的心得,而歸納出以下的幾點:(一)初聽ATC你會被它那清楚
ATC喇叭的中音非常厚潤甜美,而且分析力強橫,播放靚錄音時,一件件樂器
會『彈』出喇叭來,給人一種非常真實自然的立體感,再加上ATC先天性感染力非凡、韻
味獨特,擁有一種令人一聽難忘的『終生』感受,可以說任何人一經ATC洗禮,除ATC喇
叭外,其他舉世喇叭當中肯定無法找到相同的中音魅力,而ATC之所以有『中音王』之
稱,亦由此而來,而又由於ATC的中音素質已達『典範』級數,因此我可以很肯定的告
訴你,不管是在今天還是未來可見與不可見的日子裡,它至今已可名符其實稱為『經典
』級的優質喇叭之一,地位無可取代,成就也無人能及,歷來稱得上經典之作的音響產
品,都是目前市場上沒在生產的產品,ARC SP-10、SP-11是其二,Marantz與McIntosh膽機
亦是一批,而更早期的W.E喇叭及放大器亦是一款,如此觀來,ATC喇叭,在目前只要有
錢就能以合理的價錢來購得的『環境』來看,你說今天才開始玩Hifi的你,是否覺得很
幸運,起碼你不需要面對因停產而被逼購買被『炒起』,但貨源也並非充足的ATC喇叭,
所以我奉勸全天下愛好音響的朋友們,在你有生之年,就算不擁有,起碼也要聽過其
聲,否則你會抱撼終生!
ATC喇叭在連貫性方面造得非常出色(這是High End級喇叭必備之條件),
你很難察覺它在何處分頻,因此聆聽ATC喇叭你不會聽到那種因高中低銜接不佳而所引
致的一種『突兀』聲,它整體流暢自然,重播任何樂聲,從來不會突擊某一頻段來吸引
發燒友,不像一些著名喇叭,老是嘩眾取寵,不是高音突出,就是亂『送』低音,搞到
整體連貫性不三不四,純以連貫性而言,任何同價位甚至比它昂貴幾倍的超級喇叭,都
難以和ATC在這方面一爭長短,它的『平直』與『一體式』的渾然之聲,是ATC各款喇叭
的第二煞食絕招。
無話可說,ATC喇叭的中低頻素質超卓,以打鼓計,ATC那種『打
扁頭』的壓力與收放自如又充滿彈性的衝擊力好得令人無可挑剔,像ATC這種『下下到肉』
的中低頻響應,是很多巨型喇叭所辦不到的,有些超級大喇叭雖然低頻向下伸延度與份
量勝過ATC,但卻甚難表達出ATC那種滴水不進的節奏感,總是讓人有種洩氣的感覺,所
以ATC重播鼓聲速度並非最快,但卻輕重分明,鼓的此起彼落,交代得清清楚楚,控制力
非凡,在喇叭世界中,ATC喇叭無疑在此成就傲世同輩,成為『鼓中之王』的鼓王喇叭。
分析了以上ATC喇叭最煞食優點之後,現輪到其遭人詬病的地方:
是的,我得承認ATC喇叭的高音是比現今『高科技』喇叭少得太多,老是給人
去不盡的感受,美國著名喇叭Thiel與英國長青樹ProAc就明顯比ATC優秀得多,由於ATC天
性如此,因此在空氣感與泛音方面就缺乏了一點變化多端的美艷音色。
基本而言,ATC在此方面已可說是好的不得了,任何喇叭一旦拍埋,都會
有即輸的場面出現,然而這只是在喇叭世界中的比試結果,但若以追求傳真度的角度來觀之,ATC的聲調則是較為偏重於中頻下段的,於是無論你如何將ATC『玩轉』,在重播小提琴又或女聲時,它仍然避免不了『下圍』較為厚重的弊病,簡單來說,ATC喇叭在當代喇叭設計中的平衡度已務求做到盡善盡美,只要有任何喇叭能在其整體頻率減少一些『重量』而又不損其原味,那它就是一對天下無敵的唯一喇叭皇,但這有可能實現嗎?
ATC難推動,是舉世公認的事實,而在我與20T相處的一年時間裡(前後為它匹配
多部不同後級),聲音不但會軟弱無力,而且高音會有『推不開』的醜態,播放樂器之王---鋼琴,在大聲壓重播下,你會聽到那種令人『難堪』的拍拍開叉聲, ATC喇叭效率偏低是一個事實,但一般『普通』發燒友都對其了解未夠深刻,認為只要用瓦數足夠的PowerAmp就能『搞定晒』,其實這是一個錯誤的觀念,因為我曾經為此ATC-20T匹配過數部著名靚聲的Power Amp,在它們互相切磋下,所得出的結論就是,以Aragon 8008B推動ATC時,低頻則收得最為緊湊,而高頻也有足夠的量感來推開整個音場,不過在中頻方面就表現得有點老氣橫秋似的呆滯,缺乏生猛活潑之魅力,而Marantz在整體的感染力無疑比8008B優勝得多,一高一低也有一定的水準演出,但整體基調仍然給人『收』得不夠乾淨俐落,即是多了一點贅肉與脂肪,兩者雖有足夠的力水與潛勁去服侍ATC的胃口,但要使ATC魅力重現的活靈活現,除了Power Amp力水充沛之餘,亦要講求聲底氣質上的吻合始能成大器,因此有心把玩ATC喇叭的朋友們,請勿以為你的Power Amp夠力水就得以事半功倍,我的忠告則是:玩ATC喇叭,此一環節稍有差池,你想ATC靚,難矣!
然而在ATC眾喇叭型號當中,我又為什麼偏偏愛上ATC-20T呢?原因如下:
(一)效率偏高;(二)聲音更富感情與魅力。
坦白說,玩喇叭幾時都是效率越高越『著數』,一方面容易推動,二來不用為放大
器而煩惱,縱然閣下的Power Amp有足夠的力水去驅策它,但如落在一個高效率,一個
低效率的喇叭時,你就會發覺到高效率喇叭永遠都比低效率的喇叭來得更從容與自然,
因此用Marantz來推動ATC-20T固然可營造出驚天動地式的爆炸場面,但用一部只得三十
五瓦的VAL 845亦能夠讓ATC-20T發揮一定水準的音壓再生感,就是20T受我垂青的地方
,音準方面,ATC貴為鑑聽級喇叭,自然不會為你無端端加添一些令人聽得感覺清甜、
爽口的『味之素』,所以如果發燒友一旦在搭配上有錯誤,其聲音的惡化程度就會更加
之嚴重,因此部份發燒友喜歡批評ATC的喇叭聲音『粗』,就是此原因,而20T則不一樣
,由於他設計上影響聲底使然,所以20T重播任何錄音都帶有一種『溶』與『厚』的滑
潤聲底,即是說20T在聲音上較容易讓人討好,而對放大器的兼容度也較為友善,容易
服侍,聲底醉人,就是20T讓我愛不釋手的另一原因,當然我亦知道有部份的發燒友不
甚喜歡ATC-20T的聲底,它們指出20T沒有ATC家族各款喇叭那份傳統準確及忠實的優點
,缺乏ATC喇叭的一貫特質,然而這對我而言,根本無關痛癢,因為我這數年來一直
『埋堆』ATC喇叭群中,對,說到大公無私的準確度,20T明顯比其他ATC喇叭遜色,但這
並不意味著20T毫不準確、毫不忠實,不要忘記20T仍出自ATC工程師之手筆,無論20T
如何感情與魅力非凡,它仍然保持ATC一定水平的鑑聽本質,只不過20T在此方面作出些
小妥協,然而設計出這一對感情更豐富的20T型號,喜歡與否,完全見人見智,而我是
『好色』之徒,20T當然是我在眾ATC喇叭群中的首選目標之一。
好了,ATC的聲底特性與魅力,基本已盡於此,它韻味之獨特是世上任何多昂貴的
超級喇叭所不能比擬的,ATC不會讓你有『驚艷式』的感覺,但卻擁有令人揮之不去的
音樂感染力,聆聽它久了,你我不會覺得ATC喇叭有何『威水』之處,但一旦你聆聽其他
喇叭時,你就會即時想念ATC喇叭,並說出,原來此喇叭是如斯的靚聲與『襟聽』,所以
目前正擁此ATC喇叭的朋友,我勸你切勿隨便沽掉,免得日後你日想夜想它之時,要被逼
買回價格一直逐年攀升的ATC喇叭,那就真是悲哀喔!

以聲底氣質而言,我認為最能發揮悅耳動聽音效兼夠潛力來驅策ATC喇叭的Power
Amp來推當今兩大品牌:一為Krell各型號;二為Threshold T-400及T-800。
ATC喇叭聲底雄渾壯大,故整體線條會缺乏形體,如何將它玩得玲瓏浮凸,線條
優美,前級的選擇性尤為重要,我聽過匹配ATC喇叭最靚聲的前級如下:
(A)CAT SL 1 Signature:它高中低頻瓣瓣平均,整體音場輪廓分明,中頻聲
音鏗鏘夠勁,高頻伸延標青而低頻則收得緊湊無比,是一部超級High End前級。
(B)ARC SP-11:聲底幼細通透,高頻充滿空靈美,整體連貫性好到令人無可挑剔,動
態表現超凡入聖,一靜一動的對比似乎比Cat前級更勝一籌,不過低頻略缺『重量』,
一得一失,自古皆然。
(C)Sonic Frontiers Line 3:此前級音色美艷亮麗,由高至低整個音域充滿美感,
而線條之優美更是前二部High End前級當中幼細潤滑者,說到味道之佳、韻味之濃與滑
若無骨的通透聲底,Line 3可稱首選。
三部前級都是水準之作,各有本身之聲音魅力,總之玩ATC喇叭起碼用上這幾部前級
(又或者更高型號的ARC Reference One、Two及C.J Premier系列)。否則ATC喇叭整體
音效會大打40%折扣。發燒友切記。

結論
ATC喇叭不但感情豐富,而且還動態非凡,爆得非常,歷來『動態』與『感情』並兼
的喇叭甚少出現過,但ATC就是這樣的一批精品,我買了20T喇叭已有一年之久,但卻遲
遲未動筆去『真正』論述它,主要原因就是怕此文一出,而影響到我收集各款ATC喇叭
的目標有所阻滯(深怕發燒友看了此文後,個個都不想賣出),不過,若然你真的很討
厭它,而又要盡快將它拋棄,那請你聯絡編輯部,我會親自與你接洽商談。
另外,ATC喇叭『煲煉』需時,沒有一千幾百個小時,你很難從ATC喇叭聽出什麼端
倪來,所以請發燒友好好『服侍』它,待它『成材』後,你就會知道它的『味道』如何
了。
其二,我是膽機之擁躉,世人皆知,但如果你要我放棄膽機,那世上只有一樣東西
能徹底改變我的『至愛』,那就是ATC喇叭!即是說,如果ATC喇叭一定要它匹配原子粒
後級才能靚聲,那我就必定會放棄膽機,而投入原子粒機的懷抱就是ATC喇叭給我最大
的『壓力』!

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