我爱蜂鸟(最新款乌木白金蜂鸟)！！！ [复制链接]

问题是cello网站现在都找不到了，说明书更加不用想，只好向用家取经了。
谢谢老大指点。

呵呵，做戏做全套嘛，也是个心愿。这里如果没有发现，就去香港论坛问问咯，应该没问题的。大陆玩家少点。

下面是P101唱放卡的设计者Tom给用户的回信。因为英文水平不过关，黑胶水平更不过关，只能大大概概看出来说P101输入阻抗为1000欧，并且推荐用一个前前级，但是又说这个很难找到合适。哪位英文好的黑社会大佬帮忙解释一下子？先鸣谢鸟。

RE: P101 and MPS

From: Tom Colangelo
dated Wed, Apr 5, 2006 at 8:58 PM


Dear Jonathan, I would use the transformer in your particular case. The problem is finding one. Due to the the minute signal levels involved requires a very well shielded transformer.The nominal input impedance (" Z ") of the P-101 is about 1k Ohm. This is shunted with a .03 micro Farad capacitor. This will require modification of your P-101 to use a typical step-up transformer. With the present input "Z" of the P101 would need a transformer with an output "Z" of of 1k Ohm or less. A transformer with an output "Z" of 1k and an input "Z" of 10 Ohms would provide 20dB (10X voltage "gain" would work well. FYI: The "Z" ratio is equal the square of the turns ratio or the voltage ratio. For example transformer with with an output "Z" of 600 Ohms and an input "Z" of 6 Ohms would provide a voltage step-up of 10X and have a turns ratio of 10X. Another possibility is to use a pre-pre that has a gain settings of 12dB, 20dB, and higher. It is difficult to find such devices because most transformers and pre-pre(s) were designed to be interfaced with moving magnet phonon designs and as a result provide a large amount of gain. There may be some transformers that will work because the 1k input (z) of the P-101will help reduce the output enough to provide to bring the output level near to the point desired.

按照cello论坛里面讨论，如果用mc唱头，一个是要挑选高输出，一个是用前级增加20db增益。不过也有不少人是专门找cello的p100 mm唱放来加优质升压牛。

原帖由 recorders 于 2013-2-11 11:29:00 发表 我瞎猜的，估计cello的p100 和P101唱放卡增益是一样的，只是输入和输出阻抗不一样而已

现在mc升压牛也不是说难找，不过匹配还要试过才知道。当然最好先找个0.5mv输出的唱头，然后慢慢调整，一下子上鸟估计会搞到一头烟。

原帖由 我爱LP 于 2013-2-11 18:26:00 发表 Cello唱放卡点玩问深圳老杜啦，不过印象中他好像是用来玩单声道的。

记得他当时是用b100卡加audio note 3牛用在930上面听单声道
用p101听立体声的。当时对黑胶更加一无所知，所以光顾着流口水，没问唱头是啥。
现在不知道怎么变化了。我发了短信给他，他还没理我呢。