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| [#1] 請教玩直線循跡唱臂的師兄們 小弟只玩過Rabco的機械式直線循跡臂，對直線臂如ET和Clear Audio等設計沒有使用經驗。 想問問正在使用這類唱臂的師兄，如果隻唱片偏心得厲害時，唱頭會向左右擺動得幅度甚大，這程況下，直線臂能否完全追隨音軌的左右擺動，還是由針桿的柔順度去追隨音軌的移動的呢？ 即是說可以看到針桿左右擺動，而臂身則相對不覺擺動。 謝謝分享。 |
孟波 正式會員218.xxx.xxx.240 |
2010-01-31 11:26 | |
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| [#2] 請教玩直線循跡唱臂的師兄們 孟波兄. 就我的ET2加AT33R來說, 係看到臂身跟住擺動的. |
Gauss4000 正式會員 219.xxx.xxx.205 |
2010-01-31 12:26 |
| [#3] 請教玩直線循跡唱臂的師兄們 Gauss4000 兄： 那ET2的橫向靈敏度真的很高了，唔知見唔見針桿先歪唱臂才動的情形呢？ |
孟波 正式會員 218.xxx.xxx.240 |
2010-01-31 12:30 |
| [#4] 請教玩直線循跡唱臂的師兄們 孟波兄. 我無留意. 等我留意下再說給你知. |
Gauss4000 正式會員 219.xxx.xxx.205 |
2010-01-31 12:45 |
| [#5] 請教玩直線循跡唱臂的師兄們 trust your naked eyes? lol use some equipment to measure will tell you a better picture. |
cpu8088 正式會員 115.xxx.xxx.214 |
2010-01-31 20:00 |
| [#6] 請教玩直線循跡唱臂的師兄們 惨啦, 條咁好題目又俾人攪破壞啦 |
254mm 正式會員 219.xxx.xxx.16 |
2010-01-31 20:09 |
| [#7] 請教玩直線循跡唱臂的師兄們 如果你見到針桿擺動, 就真的很有問題, 理論上, 真線臂是會跟着坑紋左右擺動, 只是針桿擺動, 即表示Off Alignment或是臂身不夠Free!! |
terrybond0075 正式會員 58.xxx.xxx.59 |
2010-01-31 20:31 |
| [#8] 請教玩直線循跡唱臂的師兄們 ET2的橫向敏感度是極高的。在很多時候就算水平尺也未見差別, ET臂已反映出米。 |
yukclee 正式會員 218.xxx.xxx.254 |
2010-01-31 20:51 |
| [#9] 請教玩直線循跡唱臂的師兄們 cpu8088 你收皮啦學人講唱臂，仲未出夠醜咩！ http://www.hifi33.com/avforum/forum_message.php?topic=68090712005254 |
孟波 正式會員 218.xxx.xxx.240 |
2010-01-31 22:25 |
| [#10] 請教玩直線循跡唱臂的師兄們 dont get jealous as i believe in designs and precision manufacturing of tone arms. if u want something that is done by hand or using naked eyes go for it. it is not my problem. funny man ball u started this topic showing how naive u are. |
cpu8088 正式會員 115.xxx.xxx.214 |
2010-02-01 07:23 |
| [#11] 請教玩直線循跡唱臂的師兄們 get this one and have it done with  |
cpu8088 正式會員 115.xxx.xxx.214 |
2010-02-01 07:32 |
| [#12] 請教玩直線循跡唱臂的師兄們 惨啦, 條咁好題目又俾人攪破壞啦 X 2 |
Condefly2 正式會員 218.xxx.xxx.65 |
2010-02-01 10:40 |
| [#13] 請教玩直線循跡唱臂的師兄們 Hi 孟波 Gauss4000 yukclee Condefly2 and all C-hing Long time no see! Arm swing is normal followed by the centre. If the arm not swing according the off centre LP, that means extra force will be add on the stylus and has to be absorbed by the damper that’s we don’t want. 最後修改時間: 2010-02-01 11:15:34 |
et2 正式會員 58.xxx.xxx.77 |
2010-02-01 11:14 |
| [#14] 請教玩直線循跡唱臂的師兄們 ET2的橫向敏感度是極高的。在很多時候就算水平尺也未見差別, ET臂已反映出米。 Exactly, so for ET2 水平尺 is not enough! |
et2 正式會員 58.xxx.xxx.77 |
2010-02-01 11:21 |
| [#15] 請教玩直線循跡唱臂的師兄們 "In conventional pivoted arms the arm/cartridge system moves vertically and horizontally around a common point; thus, horizontal and vertical effective masses are very similar. In linear trackers there is a big difference between the effective vertical and horizontal masses. Being a pivoted system in the vertical axis, a linear tracker's effective vertical mass is low because it consists of the relatively short armtube and cartridge. Horizontal mass is much larger: it includes the entire arm/sleeve assembly as well as the cartridge, all of which must be carried across the record and which do not benefit from being a pivoted system. "Hang a small weight on the end of a spring and it bounces at a fairly high frequency over a short distance. Put a bigger weight on the spring and the rate of movement slows while the excursion length increases. The high mass of a linear-tracking arm in the horizontal axis can create a very nasty low-frequency resonance. The eccentricities due to the off-center pressing of virtually every LP made will excite this resonance as the system moves back and forth trying to track the shifting groove. "In any arm/cartridge system, the arm should hold steady while the cantilever remains free to extract information from the groove. If the two were dancing partners, the cantilever would 'lead' and the arm would follow. In an undamped high-mass system the 'tail' (arm) begins to wag the dog (cantilever). Unwanted cantilever movement creates unwanted electrical output. In addition, any electrical output created with the coils uncentered in the magnetic gap is nonlinear, thus making it virtually impossible for the cartridge to act as a linear transducer, which is its job. Cantilevers can actually snap in undamped linear-tracking systems....In my opinion, a linear-tracking arm without damping is simply not viable if the goal is a 'reverse machine tool' accurately tracing what's in the groove." |
df41 正式會員 110.xxx.xxx.141 |
2010-02-01 13:56 |
| [#16] 請教玩直線循跡唱臂的師兄們 香港有不少直線臂高手，特別系ET。唔識真系唔好亂甘嗡，會比人地齒笑。 最後修改時間: 2010-02-01 14:48:06 |
zanua 正式會員 116.xxx.xxx.22 |
2010-02-01 14:47 |
| [#17] 請教玩直線循跡唱臂的師兄們 波 sir 轉玩直線臂? |
et2 正式會員 203.xxx.xxx.22 |
2010-02-01 18:17 |
| [#18] 請教玩直線循跡唱臂的師兄們 各玩臂高手們(不包括cpu8088)： 小弟還未轉玩其他直線循跡臂，有此一問係由支damper瓜瓜地既Denon DL-103針引起，這針的damper不是沒有了彈性(施加2.5g唱重後沒有拖肚，高度正常)，但當遇上魷魚或偏心唱片時，激發起的諧振振幅大到令唱針跳線，就算未跳線都見到成支臂勁打冷震拋拋下，要出到Audio Craft AC-3000油浸oil damping臂先正常唱到。 問題來自如果我將oil damping校重手少少，支臂當然唱得好定，但有次我唱一隻勁偏心唱片時，卻發現原來damp得太死，左右擺幅差不多由針桿食晒，因此聯想到，水平移動質量較大的直線循跡臂(df41兄解釋得好詳盡)會唔會有相同現象，由於我未親自玩過ET-2等臂所以請教師兄們。 至於這cpu8088乘機抽水已經預料之中，我特登等佢回應多幾次講多錯多時才一棍打落去。上次佢講9吋和12吋出醜已經係舊年既事，網友都想睇下小丑2010年新既表演了。 |
孟波 正式會員 218.xxx.xxx.240 |
2010-02-01 19:12 |
| [#19] 請教玩直線循跡唱臂的師兄們 Ball Hing, Even with a cheap cheap SL10, you can see the tone arm follows the LP if it is off centre or wrapped. Cheers! 最後修改時間: 2010-02-01 21:01:27 |
38super 正式會員 203.xxx.xxx.85 |
2010-02-01 21:00 |
| [#20] 請教玩直線循跡唱臂的師兄們 以前kuzma有段片示範佢支直線臂行偏心唱片既表現，冇記錯的話支臂好free甘少少左右移動。有興趣睇 kuzma臂review http://www.stereophile.com/tonearms/804kuzma/index.html 另有一篇http://www.stereophile.com/turntables/407kuzma/index.html 當中 "...If you're seriously interested in the Air Line, it would be a good idea to read my review, as well as Kuzma's "Manufacturer's Comment" in the September 2004 issue, in which he does the math to show that an eccentric LP produces a disturbance of 0.5Hz or 0.75Hz (at 331/3rpm or 45rpm, respectively)—well outside the Air Line's horizontal resonant frequency of 2–5Hz, and therefore not a problem" 佢話Phantom 比 kuzma表現好，就唔知真唔真，因為我聽朋友對直線臂既評價(佢聽過versa 同 et)系同pivot arm 兩個世界。 |
zanua 正式會員 123.xxx.xxx.146 |
2010-02-01 21:50 |
