美国顶级西湖音箱北京代理，Lc3w12\Lc8.1\Lc6.75全新原包现货，... [复制链接]

图片在23楼

已经安排人去做6根地DIY的PE线:
请看23楼

已经安排人去做6根地DIY的PE线:
2根3米 Y对Y;
2根3米 Y对香蕉;
2根3米 Y对鱼尾夹;
快的话今天可以拿到，拿到后明天看能不能安排测试。
吴兄直接把香蕉插往电源插座地线插,这种方法千万要注意安全。严重不建议使用。

哈哈！P.E降噪推广活动！背景应该更安静，细节更多！

根据残剑兄的转引：

原帖由 残剑831 于 2011-1-5 15:10:00 发表
转一段关于新款西湖lc系列上带有的静电泄放功能的原理说明：  

这个“静电释放系统”的原理来自西湖发现喇叭单元在驱动空气发声的时候，与网罩反射的气流产生摩擦静电，这种失真干扰了声音纯度，继而也极大影响低电平下的微动态表现

如果P.E系统只是为了消除静电,我看倒不必专门设计这个东西了. BAIDU一下静电消除器,价格不贵而且能把整个环境的静电全部消除.

请看以下产生P.E的十大原因:

How’s Your P.E. Distortion??
Top 10 Reasons You have P.E. Distortion 1
产生P.E. Distortion的10大原因
1) You’re Not using Edison’s Cylinders.
你没有使用Edison’s Cylinders (这个是什么,不知道?)

2) You have many (uninvited?) guests in your listening room.
听音室里有太多客人
3) You leave your silver discs scattered around your listening room.
你把银碟分散环绕在听音室周围(KAO!我家全是磁的,我做梦也想有很多银器,呵呵)
4) You use electronics with lots of negative (NFB) feedback.
你的音响系统NFB(负反馈)过多
5) You use wires without a P.E. Bus? and unorganized by Cable Muffs?.
你使用的线缆没有P.E. Bus?，Cable Muffs? (卖自己的东西了)

6) You use loudspeakers in the same room as you and your equipment.
你的音箱、你和你的设备同处一室 (不在一起怎么听啊,不明白)

7) It has/has not rained recently or is currently...
最近没有下雨，空气太干燥……
8) You haven’t learned how to defeat the laws of physics*...
你没有学过如何解决一些物理规律带来的麻烦……
9) You have every piece of electronic equipment you have ever used, or are likely to use in the next 10 years, in or in the immediate vicinity of
your listening room.
你有一大堆使用过的设备，有些可能会在未来10年内用到(就是电子垃圾又舍不得扔掉呗)，它们都堆放在听音室内
10) You have an expensive, state-of-the-art playback system.
你有一个昂贵的回放系统(贵的未必好)?

是啊，万一哪天地线端子带电的话，估计喇叭会受损了，如果接到功放上还好点，至少如果短路的话还有保护措施。

全部做好了，个人感觉应该是鱼尾的最好用，但可能会伤到机器表面，所以要小心寻找可以夹住的地方。
正好明天有客人预约试听，就做个测试，结果随后上。

顺便请教,图片的最大SIZE是多少?

西湖兄，残剑兄，我今天抽时间也做了一下PE的测试，我之前是把箱子的PE端子的接线直接放到地砖上，感觉和不接线的区别不大，看了你们二位的帖子后也想试一下。但使我困惑的是PE端子到底要接到哪里，它要起什么作用？如果按西湖兄的建议，夹到功放外壳的话，我的后级整个外壳是铸铝的，外面经过抗氧化处理，外壳本身就不导通，背板是金属喷漆的，所以只有外壳的螺钉是相互导通的，如果用夹子夹到外壳上，估计没什么作用，夹到螺钉上才可能有效。其次我又测试了一下外壳和电源地线的导通，发现除了前级有50多千欧的阻值外，后级和cd机的外壳全部没有接地。这样我就得出结论，PE端子直插墙插的接地端与夹在器材外壳上肯定不会是同一个效果了。接着我又试了下直插墙插的效果，基本与残剑兄的听感差不多，但说不上十分喜欢，感觉之前特有的质感没有了，就有点像数码与模拟的区别似的，也可能是还没有适应。而且我觉得这种接法受环境的干扰较大，房间是否真正接地，是否是零地合一的接法，是否会受其他电器的干扰都不一定。请西湖兄看一下有独立接地端子的南瓜功放的接地端是否和电源的接地端导通？最后我猜测西湖的PE系统是否为专门的功放而设计？功放必须有一套独立的PE系统电路？因为一般来说防止电源干扰的有效手段就是断掉地线，西湖偏偏相反，挺奇怪的。

尽管我已经做了测试,也有了初步结果, 但此事不能就这样下结论,我已经发信给厂家,让他们给出合理建议, 待有结果后一并公布.

P.E 失真是西湖主推的技术,我想也不会是儿戏. 请大家多讨论.

不知道西湖兄昨天的测试结果如何？我现在是习惯直接接地线的声音了，真是背景更宁静，细节更多，也更紧凑，原来的宽松度有些许减少，等待你的正确答案。现在为了避免危险，我只在听音乐的时候接上PE线，平时不开的时候拔下来。另外mao兄说是对此线的材料也有要求，不同的线声音也不一样，不知对此您也有何见解，如果方便，一起问问西湖厂家吧。我也在北京，等您器材到齐了想去拜访，蹭听一下啊，不知道欢迎否？

NAGRA金字塔功放的接地端口,与电源地线/外壳镙丝/XLR/RAC地线相通!
NORDOST 插排也提供了一个类似的接地端口,同样也有香蕉输出,经测量地电源地相通!
P.E的接法我仍然没法肯定,刚才查了BOULDER 2060的手册,里面也没有说法. 看来只有等厂家的答案了.
欢迎月光兄来交流, 因平时没有人在位, 请提前预约15911083319.

At the rear of the unit is a 3 position terminal strip which provides  electrical access to the chassis (center terminal) and left and right audio grounds respectively. Lowest noise (mainly hum) may be achieved  with the chassis connection open or connected to the system audio ground, or lacking this, to the left or right, or both left and right terminals. Some experimentation may be required to find the combination most suitable  to a particular installation. Many high quality power amplifiers (or pre-amps) provide user selectable connection from chassis to audio common. It is usually best to start by opening the audio to chassis links on all equipment  and listen to the hum and noise present in the output of the speaker system.

大意是许多优秀的高素质功放都提供"共地"接口(我认为与NAGRA相似),用来与音箱相连. 断开/连接可以听到系统哼声的区别.

还是等厂家回复吧

Glenn has given me information to hopefully answer your question.  The short answer is:  Yes, to the amp chassis, close to the output terminals unless there is a dedicated audio ground or "P.E." jack.  
We hope to eventually solicit "P.E." licensees to provide dedicated P.E. terminals on the equipment, but that time is not at hand just yet.  Although the P.E. signal can be drained through the ground or chassis connection, what we are really looking to do is provide a safe return to the amplifier' power circuitry which may or may not be the amp ground or chassis.  If the amplifier output terminals have one terminal connected to ground or chassis (our old style Boulder amps are this way) then the P.E. connection can be just piggy-backed on to the (-) terminal.  This is how we demo'ed the system we had at CES 2011 in Las Vegas.  If, however, you are using an amplifier that has both (+) and (-) terminals actively driven, then connecting the P.E. wire/jack to the amp audio ground or chassis is the way to go.
By the way, if your customer neglects to connect the P.E. jack at all, he will still be getting much of the benefit due to a circuit we include in the speaker that we refer to as the "safety virtual P.E. Bus".  This is a version of our "Virtual P.E. Bus" we developed for the smaller speakers where limited space precludes the use of a 3rd terminal.  We drain the rogue P.E. electrons out through the 2 signal conductors.  Not quite as effective as a "real P.E. Bus" and dedicated connection, but unless you have a very good listening environment, I doubt you can detect the difference on most program material.
The Lc4.75, Lc24.75, Lc265.1, Lc5.75 and Lc6.75 use a virtual P.E. bus technology and thus have no physical jack on the back.  Some earlier production units of other models used a modified version of the virtual PE Bus, and thus may not have a dedicated jack.
注: Glenn R. Phoenix, President

P.E线接法:
机壳/镙丝/或者" -----" 接线柱;
what we are really looking to do is provide a safe return to the amplifier' power circuitry which may or may not be the amp ground or chassis.
最好是有一个专用的独立的电源地(不是功放地或机壳), 西湖希望所有的功放厂家能提供这样一个接口.

西湖兄辛苦了，谢谢你终于找到了答案，那我的理解是不是就是可以接到外壳上，但是要像NAGRA那种有独立接地端子的功放，如果没有的话，就应该接到一个独立的电源的地线？

1、功放输出的负端子（—）；
2、功放机壳或机壳镙丝（用万用表测量与电源线的地线相通）；
3、专用接线柱（我一般连到插排的接地点）；

厂家推荐使用接法1，可以购买他们家的带PE线的喇叭线，好不好我不评价。市场上只有他们一家有这样的产品。

这下彻底搞明白了，谢谢西湖兄。现在很喜欢西湖的声音，觉得西湖的平衡、宽松以及密度感都很好，这正是我想听到的声音，不过国内对西湖各个型号产品的评价和介绍也不多，也比较少有机会能听到，希望西湖兄和烧友们能够多收集一些西湖产品的资料和评价，如果能搞一次展示会就更好了，让更多的朋友能够了解、喜爱西湖。

感谢月光兄对西湖产品的喜爱！

因本公司订购的自用展示品HR-7意外地销售了，现在只有一对TOWER-12大箱也很快会被主人颔走。缺乏最能表现西湖特点的号角箱，现在暂无计划举行交流会，当然小范围的交流是经常有的，欢迎有兴趣参加的烧友发短信留下联系方式，有机会有我会通知大家。

谢谢！

ACTIVE BI-AMP
SINGLE AMP WITH HLX 400
ACTIVE QUAD AMP WITH HR-X CROSSOVER

Well, each has its advantages.

Active Bi-amp: Of course, requires a minimum of 2 amplifier channels per speaker, so amp requirements are double–although there is some thought that because the load of the speaker is less without the HLX 400, that the amplifier capability can be less. The presence of the MRX-2-400 active crossover in the system allows some adjustment of L.F. versus H.F. level. Less high-level crosover sound but more active electronics in this version is a sonic trade-off that only the listener can evaluate. They are different even though we do our best to minimize the sonic fingerprint of each. Optionally, this version can be passively tri-amped (more block diagrams available).

Single Amp with HLX-400: Can be powered with just one stereo amplifier (bi-wired speaker cables recommended). Optimally it can be passive bi-amped (we have block diagrams if needed) for higher resolution. Single Amp operation allows the use of a very high quality amplifier (say Jadis JA-800 or Boulder 2000) at the start and upgrade to a 2nd set for passive bi-amplification as budget allows.

Active quad-amp with HR-X crossover: This system will have the least high level networks (although still some driver correction pats in speaker cabinet) and the maximum number of active circuits. Again, we do as much as is practical to minimize the sonic impact of both. The speaker requires the 4-way active crosSover and 4 amplifier channels per speaker. There is no single amp or bi-amp mode for this version. Four stereo amplifiers or 8 mono amplifiers should have equal gain if possible although there is a control range of about 6 dB for each of the 4 outputs on the signal boards of the HR-X 4-way, 2 channel active crossover. Connecting 4 amplifiers (or  plus the active crossover, pre-amp and source components into such a revealing system can be quite challenging, and it best done by someone with patience and experience. The other 2 versions are a bit less sensitive to system issues like cabling, routing, grounding and component placement.

All 3 systems can be double-wired (spades and bananas) from amp to speaker for additional resolution.