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樓主: 柒喜

[擴音機/組合] CAMBRIDGE AUDIO TOPAZ AM10 INTEGRATED AMPLIFIER & CD10 CD PLAYER

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發表於 2013-9-16 23:22:55 | 顯示全部樓層
拆開計,每邊2500
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發表於 2013-9-16 23:34:37 | 顯示全部樓層
I have got the SR 10 receiver ! The sound is very nice ,for rock or classical !
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發表於 2013-9-16 23:37:11 | 顯示全部樓層
呢set 真係幾抵玩,對於鍾意人聲同曲樂嘅愛好者係不錯嘅選擇
35W一般家庭夠晒聽
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發表於 2013-9-16 23:54:33 | 顯示全部樓層
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發表於 2013-9-17 00:21:43 | 顯示全部樓層
本帖最後由 auraheart 於 2013-9-17 00:49 編輯
柒喜 發表於 2013-9-16 17:12
配高效率喇叭仔就OK


配高效率喇叭仔 not mcot, I like low efficiency big, heavy speakers. This integrated amp might match well with Rogers LS 3/5A, even it is kinda not "loud speakers".  However, I did use a 25 Watts power amp years ago, was surprisingly good (Bedini 25/25 + Quad ESL speakers).
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 樓主| 發表於 2013-9-17 00:49:08 | 顯示全部樓層
uncleting 發表於 2013-9-16 23:37
呢set 真係幾抵玩,對於鍾意人聲同曲樂嘅愛好者係不錯嘅選擇
35W一般家庭夠晒聽

翻就無問題,無時間打
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 樓主| 發表於 2013-9-17 01:03:52 | 顯示全部樓層
auraheart 發表於 2013-9-17 00:21
配高效率喇叭仔 not mcot, I like low efficiency big, heavy speakers. This integrated amp might matc ...

Bedini 25/25 至夾 Quad ESL多年前聽過舊款ESL,人聲和小品無敵,低頻乾淨快速,但量稍嫌不夠,聽大型差點點,可而且ohm數會跌,幾考功放,水塘弱D都比佢扯乾
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發表於 2013-9-17 03:07:48 | 顯示全部樓層
本帖最後由 auraheart 於 2013-9-17 06:59 編輯
柒喜 發表於 2013-9-17 01:03
Bedini 25/25 至夾 Quad ESL多年前聽過舊款ESL,人聲和小品無敵,低頻乾淨快速,但量稍嫌不夠,聽 ...


The Bedini 25/25 was mostly driving the hi/mid range.  Had the Decca ribbon super tweeters and Audio Pro sub-woofer with 100 watt amp build-in.  Was the only low power transistor amp I ever used, but very good.
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 樓主| 發表於 2013-9-17 06:36:55 | 顯示全部樓層
auraheart 發表於 2013-9-17 03:07
The Bedini 25/25 was mostly driving the hi/mid range.  Had the Decca ribbon tweeters and Audio Pro ...

玩ESL大都加超低,舊款最難搞係音壓唔夠,到90dB已經極限。喇叭阻抗又大上大落,音頻一到10KHz時阻抗竟跌至1ohm,不知幾多功放比佢玩謝
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發表於 2013-9-17 06:47:20 | 顯示全部樓層
回復 柒喜 #49 的帖子

Isn't it makes the Hi Fi World wonderful? hehe....fun , challenging  and burning $$ along the way.  I actually learned how to design audio circuits in college long ago, the more I knew, the worst it got...and that was not it...I love music and singing....dammmmn !!! LOL..
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發表於 2013-9-17 07:15:53 | 顯示全部樓層
本帖最後由 auraheart 於 2013-9-17 07:35 編輯
柒喜 發表於 2013-9-17 06:36
玩ESL大都加超低,舊款最難搞係音壓唔夠,到90dB已經極限。喇叭阻抗又大上大落,音頻一到10KHz時阻抗竟跌至1ohm,不知幾多功放比佢玩謝


That was the reason why I added a pair of Decca ribbon super tweeters, it takes over at about 7khz and impedance is kept at 8 ohm or a bit above.  In actual listening environment, it adds noticeable harmonics and very lovely.  Maybe why Mark Levenson chose Decca for his H.Q.D. system (D for Decca).
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發表於 2013-9-17 08:40:04 | 顯示全部樓層
it is a nice audio system
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發表於 2013-9-17 11:48:44 | 顯示全部樓層

咁更係
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 樓主| 發表於 2013-9-17 12:33:40 | 顯示全部樓層

無得再平
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發表於 2013-9-17 16:38:04 | 顯示全部樓層

有排子應該武
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發表於 2013-9-17 17:34:29 | 顯示全部樓層
Checked the web and The AM10 might not be well build.  SMALL toroidal  transformer and really tiny filtering caps.  Looks like no so good voltage regulation before out-put stage, circuit board looks too simple.  I seriouly doubt if the amp will clip at full out-put.  Additional specs by manufacture listed below:

35 watts x 2 channels into 8 ohms (20-20,000 Hz), 0.15% THD at 80% of rated power
signal-to-noise ratio: 82 dB
large toroidal power transformer for low noise and high-current output
5 RCA audio inputs, including a phono input for connecting a turntable
front-panel minijack input for connecting a portable music player
RCA record output
full-size headphone jack
one pair of binding-post speaker terminals
sleek brushed aluminium exterior
remote control
16-15/16"W x 2-15/16"H x 14-5/16"D
weight: 12.3 lbs.
warranty: 3 years
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 樓主| 發表於 2013-9-17 18:02:35 | 顯示全部樓層
auraheart 發表於 2013-9-17 17:34
Checked the web and The AM10 might not be well build.  SMALL toroidal  transformer and really tiny f ...

你講得無錯,此機絕不適合過大音壓,否則輕則會拆,嚴重會扯乾電容燒機,筆者亦有提及不宜過大音壓。一分錢一分貨,也不能苛求二千零蚊比足靚料
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發表於 2013-9-17 18:37:45 | 顯示全部樓層
觀月瞳 發表於 2013-9-17 16:38
有排子應該武

You might like to check out NAD C 316BEE 40 Watts integrated amp, much better specs. ($379.95 USD)
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發表於 2013-9-18 04:19:09 | 顯示全部樓層
柒喜 發表於 2013-9-17 18:02
你講得無錯,此機絕不適合過大音壓,否則輕則會拆,嚴重會扯乾電容燒機,筆者亦有提及不宜過大音壓。一分錢一分貨,也不能苛求二千零蚊比足靚料

I can't agree more, but clipping could also destroy speaker drivers and cross-over due to over heat.
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 樓主| 發表於 2013-9-18 07:21:16 | 顯示全部樓層
auraheart 發表於 2013-9-18 04:19
I can't agree more, but clipping could also destroy speaker drivers and cross-over due to over hea ...

35Wpc doesn’t sound like a lot of power. But let’s put this in context. Amps only know they’re small in a big room or with the wrong speaker. Shackled to a low-sensitivity loudspeaker in a palatial listening room and urged to perform routinely in the 95dB+ range, we would indeed have a Houston-level problem. But that’s not the AM10’s job description. The AM10 exists for the smaller application—to provide high-level musicality in tighter confines.

筆者早說明此機應匹配什麼,況且絕大多情況聽音樂也甚少將音壓調至95dB,如長期維持此音壓不用4小時足以令耳朵永久損害。你講既無錯,功放clipping是非常危險的事,以往我第一套西裝山水就clipping暗而燒毀喇叭,現今大多擴音都有保護電路,除非蓄意將音量調至極限。
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