- #1 [黃思璁], 11-02-23 17:36
- #2 [黃思璁], 11-02-23 17:49有網友W君問:
My pre-amp is Mxxk Levison ML 6A (phono card is PL3a). 本人初玩轉盤, 想問:MM唱頭配MC的前級可以嗎? 問題大嗎?
不才答:
大! PL3a phono card有55 dB gain,MM頭隨時有3-5mV output(1kHz@5cm/sec),很易會overload!
還有,劃一825 ohm輸入阻抗,對MM頭而言也太低,會好聲...都幾難!
要加外置phono amp入ML 6A line in或轉專用的PL2 phono card(如果仲有的話...)
最後修改時間: 2011-02-23 17:56:37 - #3 [黃思璁], 11-02-23 18:28網友D君問:
我用Wxxl Tempered Amadeus以下是它們提供的alignment
Inner null point: 47.64 mm(一般唱片的沒有訊號的位置)
可否改用Stevenson/Baewald/Lofgren B等常見alignments?
不才答:
Amadeus「鬼才」設計師William Firebaugh唔建議用家改動原廠alignment。 但要用原廠的〝油〞,(Manual只寫了:Arm fluid is very stiff(很「杰」), 應該是silicone fluid一類,數值不詳。不要用稀身的液體,例加: 水。相信是有其個中道理的。
Amadeus屬另類設計,相信他就不要改動原廠alignment及〝油〞的濃度。
最後修改時間: 2011-02-23 18:42:26 -
- #4 [巴斯], 11-03-02 17:25想請教關於有grounding的RCA訊號接綫同普通用的有甚麽分別?
如果用普通的而在外罝phono amp上加地綫去插蘇的地綫位又如何? - #5 [黃思璁], 11-03-02 18:56問: 想請教關於有grounding的RCA訊號接綫同普通用的有甚麽分別?
答: Phono cable要有地線,防止hum noise,由於輸出電平較低(尤其是低輸出MC頭),駁去phono amp的也應選用較低阻抗類型,又或用MM頭時,粗略計算一下總電容值(pF),方便校聲。
問: 如果用普通的而在外罝phono amp上加地綫去插蘇的地綫位又如何?
答: 如用「普通」RCA線,另加地線,在防止hum noise方面是可行的。但其它方面則資料不詳,難下定論。「接地點」一般可以連上昇壓牛、phono amp、前級、後級、牆蘇...甚至floating(浮地),一切應取決於何處「最靜」,冇hum,...和你自己收貨!
最後修改時間: 2011-03-02 19:04:47 - #6 [巴斯], 11-03-03 11:42謝謝!
如果要將唱盤遠離喇叭,那麽photo amp去amp的訊號線便會很長,是否這樣會好些? - #7 [黃思璁], 11-03-03 11:57不用謝,只集思廣益吧。
問:如果要將唱盤遠離喇叭,那麽photo amp去amp的訊號線便會很長,是否這樣會好些?
答: 建議phono cable(TT去phono amp)「盡量」要「短」(一般是0.5-1.5m),有足夠屏敝(shieldings),遠離干擾(如:大型火牛、天線、摩打等等),要trial & error,慢慢試。
如你是說phono amp去pre amp,cable能否走長一點,就要看個別設計才能作準...
最後修改時間: 2011-03-03 12:02:50 - #8 [hc21924900], 11-03-09 12:27黄兄,想問有甚麽MM/MC頭推薦?(最好係低、中價)~thx!
最後修改時間: 2011-03-09 12:35:07 - #9 [黃思璁], 11-03-09 13:14最少要先知道盤臂及phono amp資料,才可有較準確建議。
- #10 [hc21924900], 11-03-09 13:58我用Pro-ject RPM1.3及原裝臂---->Yamaha A2 AVamp(phono)~thx!
- #11 [黃思璁], 11-03-09 16:04建議有:
1)Benx Ace SL (0.4 mV, Net Weight: 8.8 g)
2) ZxX RS-10-2H (0.48 mV, Net Weight: 5 g)#
Cost around $2-3k
#may need to add spacer - #12 [doctorjohn], 11-03-09 16:25
黃 hing:
The arm of the RPM 1.3 has VTA adjustment. It accommodates my tall Ortofon Kontrapunkt's with no problem. - #13 [黃思璁], 11-03-09 16:32Ortofon Kontrapunkt C is a very decent MC cart but it's price surges up to $9k level...and there are lots of contenders
- #14 [AV-Son], 11-03-09 16:34請問黃兄及其他高人"LP anti-static mat"有咩好介紹呀?
- #15 [vt75], 11-03-09 16:40
最重要的...
5)大量清潔的黑膠唱片!!!
--------------------
入番部正洗碟機 + 洗碟水
最後修改時間: 2011-03-09 16:49:24 - #16 [doctorjohn], 11-03-09 18:11
黃 hing:
I don't mean to suggest Ortofon. Too expensive indeed for this thread.
Just to point out the RPM 1.3 arm has VTA adjustment and can accommodate the ZYX you recommended.
For myself, in this price point perhaps I'd pick the cheap Denon DL-103/103R - #17 [黃思璁], 11-03-09 18:35Denon DL-103/103R is "too short"(or arm has to tail up) & "compliance too low" for Pro-Ject's arm.
Resonance frequency at 16-17Hz is "too high". - #18 [caro1106], 11-03-09 18:40Hi Wong c-hing
The best resonance frequency shall be at 10-12Hz ???? Is it ? - #19 [黃思璁], 11-03-09 18:46Yes, something like that.
I set my Trxplanar VII at 9-11 Hz now. - #20 [黃思璁], 11-03-09 19:09AV-son Hing
"LP anti-static mat"
Sorry,"anti-static" mat就唔知。靜電又關mat事? <<唔明之處
買過一只日本出的"Ultima Turntable Mat",代替老化了的PL-70的platter mat。
但有不同物料,厚度,對校聲就真係多的野玩...
現有,羊皮、acrylic、水松、及橡膠...
最後修改時間: 2011-03-09 19:11:33 - 下一頁 (1 of 345)
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因小弟有一毒友將相贈一台Prx-jxxt 唱盤給我,而我想問除左唱針磅要買外(有唱頭跟,而我部AV amp有phono入,可再入我的膽前、後級)還有甚麽需要添置?煩請指教,不勝感激!
不才答:
1)要一枝小毛刷來清除唱針塵埃(只用來乾刷)
2)一隻防靜電唱片刷
3)有地線(grounding)的RCA訊號線,由Prx-jxxt去phono stage
4)(如果要玩埋alignment/控速)一隻cartridge alignment/speed strobe disc
最重要的...
5)大量清潔的黑膠唱片!!!
Enjoy!!!
最後修改時間: 2011-02-23 17:39:28