review33 - 影音天地: etsang3 - Audiolab 8000A 機背加前後分體開關

#1 [etsang3], 16-07-20 01:41
較早前,有個網友send張Audiolab 8000A 嘅相比我睇,問點解機背有pre-out 同power in唔洗駁jumper.
點解用第二部前級輸出駁8000A Power In 無聲出, 可唔可以幫佢check下同修理下。
往網上爬文凈係話要"摩"機, "摩"乜好神祕下搵唔到資料。
"摩"會變純後級, preamp再不能用了(咁神奇?)。相片都無。我都好好奇之下就接左番黎睇下。
打開一睇原來後級輸入欠一對"交連電容"。同埋要焊改跳線成為變純後級(Pure Power Amp Mode)
#2 [etsang3], 16-07-20 01:42
不過我見跳線位寫住SW(開關),底板窿位可以裝粒雙刀雙擲, 同埋機背有一孔對正開關可裝開關推扞,
決定做一個開關,那便可以選擇用內建preamp還是外置preamp了, 機主將來賣機出路會好些。
#3 [etsang3], 16-07-20 01:44
加輸入電容。(這是從前在鴨記電容俠侶買到的奇貨, 很musical的松下6.8uF Mylar Film caps,我覺得襯英國機,不能太飆)
#4 [etsang3], 16-07-20 01:45
屈做holder連接開關与推干
#5 [etsang3], 16-07-20 01:45
用焊錫的方法去連接和調較推杆高度最方便快捷
#6 [etsang3], 16-07-20 01:46
完成了。開關好按又柔順。
原來CDP直入(我的CDP有內建volume)8000A後級是很好聲的。噪聲低了,動態大了。仲用乜鬼前級
#7 [道果], 16-07-20 09:22
Thank you Tsang Sir, 非常實用分享.
#8 [r33_kevin], 16-07-20 09:32
手工一流！勁
好奇問下，原裝點解會冇左兩粒cap?
#9 [user_aaron], 16-07-20 10:51
真係堅正!!!
美貌與智慧並重!!!
#10 [254mm], 16-07-20 11:19
曾 Sir, 入行好耐矣, 做過 Radio People, 你話幾耐呀?
#11 [olddude], 16-07-20 12:16
勁勁勁!!!
#12 [busbus], 16-07-20 12:32
勁勁勁!!! X2
#13 [kilee915], 16-07-20 13:39
讚
#14 [achow], 16-07-20 13:46
very good sharing. tks
#15 [hifilester], 16-07-20 14:48
勁勁勁!!! X3
#16 [mark1], 16-07-20 17:16
繼早前借殼上市之後.............而家又黎一招槓桿分拆.........
#17 [neon636], 16-07-20 18:38
勁勁勁!!! X4
#18 [etsang3], 16-07-20 22:06
各位師兄,多謝鼓勵。
#19 [futuretc], 16-07-20 22:19
師傅即係師傅，無話可說！兩個字，，，，，巧勁！
#20 [oldsam], 16-07-31 12:51
Tsang Sir

I have a Cyrus 2, the CD section sounds good but MM/MC phono section has no sound at all. I suppose those orange bipolar caps are dried out on the servo board already. Those orange caps are either 1uf/50V or 2.2uf/50V. I am thinking to replace them all with Wima red caps with same capacitance and voltage rather than electrolytic caps. I dont know the outcome if it will sound better or worse. Can you pls kindly give your opinions?

Thanks
Sam
下一頁 (1 of 2)
返回 ...