最好的带式高音厂 - 行业动态室 - 声学楼论坛

请问各位,国内目前最好的带式高音厂是那一家?是以下几家里的一家吗?
1.山东海皇
2.浙江FOUNTEK
3.惠威
4.厚纪

谢谢

以下是引用钟灵在2009-07-17 22:57:10的发言：
FOUNTEK和海皇是铝带的真带式,
其他两家是平膜驱动(假带式)

能否详细谈谈海皇的带式高音

以下是台湾人写的关于金郎带式高音

採訪之際，金瑯說鋁帶高音的原理並不困難，關鍵在於變壓器，由於鋁帶振膜是經特殊加工的純鋁材料製成，要求特?輕薄，加上全幅導電直流電阻非常低（阻抗低），無法直接用普通擴大機推動，必須透過變壓器在振膜和擴大機之間架起橋樑。通常鋁帶單體使用的變壓器要求磁路系統磁通密度B值足夠，因磁間隙要寬於G2鋁帶振膜的寬度（8.5mm），普通磁鐵材料漏磁多只能利用到總磁通量的千分之幾或萬分之幾，遠遠低於一般動圈式單體的磁通量利用率（50%左右）。

研發掌握單體關鍵技術

過上千次試驗，研製出磁利用率高的U型磁路結構，具有靈敏度高、頻帶寬、失真小等優點。另外還使用N40釹鐵硼材料，使磁間隙的B值達到5500-6000高斯，這樣輕而機械阻尼很小，容易推動控制的振膜，在同相位作用力的推動下，使G2鋁帶高音的效率達到96dB/w/m，2000年推出的G3更進一步達到100dB/w/m。

其實金瑯剛開始仍以傳統單體喇叭為主，1996年推出的HL-801與PL-901喇叭，第一次宣示中國有能力製造高品質的Hi-Fi揚聲器系統。1997年的HL-808B與HP-306 AV不但在媒體廣受好評，消費者也非常喜歡。這個時期他們主要採用英國Morel、法國Audax、德國Eton、德國Thiel陶瓷單體、LPG、丹麥Vifa的喇叭單體，從中學習，進而開發屬於自有智慧財產權的產品。

他們採購的單體數量算是龐大，但所有國外大廠的品質仍不穩定，昂貴的Thiel陶瓷單體甚至有將破損單體修補後再賣出來的情形，長期備受困擾的金瑯決定自己生產單體，鋁帶高音就是邁向成功的第一步。

獨家磁路與變壓器設計

金瑯鋁帶高音的振膜厚度僅為0.01mm，寬度8.5mm，初期也發生容易斷裂的情形，但經過不斷改良後，現在金瑯的鋁帶高音整體剛性良好，幾乎沒有分割振動失真，也沒什麼相位差影響，這是球頂、錐盆等傳統高音單體很難達到的「純淨」振動狀態。

廠方的標示鋁帶高音頻率響應40kHz±3dB，實際上有效頻響範圍上限可達到100kHz，G2的二、三次諧波失真在1%以下，G3的二、三次諧波失真在0.5%以下。最新的G3 Si頻率響應1400Hz-40kHz，效率99dB，可承受50瓦功率，足以和世界上最好的產品一較高下。有趣的是，目前國內（大陸）幾家生產鋁帶單體的廠商，都與金瑯有直接或間接關係。

金瑯推出鋁帶高音初期，曾有國外代理商質疑他們模仿法國某款鋁帶單體，他們的確借鑒了不少國外同類產品的成功經驗，但金瑯從未滿足於簡單的仿造，除了外形上實在變不出太多花樣外，從材料、結構到工藝，都有金琅自己的一套，特別在磁路結構和變壓器這兩大關鍵部位，金瑯比國外產品更有實質性的突破。

德國測試打響國際名聲

根據德國某專業電聲測量機構的測量結果，第一代G2高音的許多性能已超過了他們所借鑒的國外鋁帶單體。這位國外代理商後來不但成為金瑯的忠實客戶，還幫他們介紹許多生意，最後連這家法國鋁帶單體的製造商，都反過頭來尋求與金瑯合作，因為金瑯真的做得好！
於鋁帶單體生產工藝複雜，產量有限，所以一直處於供不應求的狀態。出口額占70%以上的金瑯當然也想有更多生意，韓國現代汽車曾找金瑯生產汽車喇叭，日本松下找遍中國後也來到蓬萊，但他們的訂單大到難以消化，金瑯只好忍痛放棄。保持小而精，小而靈活、小而強壯是Hi-End音響行業生存的技巧，他們不打算盲目的擴大規模。

据说FOUNTEK的工程师是从海皇出去的。不是有谁知道详情.

以下是引用kirin在2009-10-22 18:40:26的发言：

比海皇的厉害吧
看产品就知道了

如单从售价来比，金琅的G1可以卖400多美金一只（零售价，国内好像没有卖），好像FOUNTEK还没有差不多的售价的产品。kirin能否详细介绍一下你对两家厂了解的情况？金琅的G2在国内叫价1980元一对。不过没有A/B对比过FOUTEK和金琅的产品。太贵了！据说G1的强项是在中频这块很好，高频除了指向性问题的话，其它方面也很不错。

金琅是因为MARKLEVISON直接OEM它的几款系统而在国外声名大振。FOUNTEK目前还没有特别大牌的品牌有过它的东西，主要是DIY市场。当然，FOUTEK推系统比较晚，不像金琅，主推系统。

Battle of the Non-Domes

Aurum Cantus G3Si ($213)

LCY 130 ($199)

Fountek NeoCD2.0 ($118)

Bohlender Graebener Neo3 PDR ($55 w/flange)

Silver Flute YAG20-1 ($40)

Special Guest Performance by:

Vifa D26NC55 ($29)
Non-Domes

Commentary

Aurum Cantus G3Si ($213) - Of the three true ribbons, the G3Si has the best low end performance. This isn't saying much since low end distortion is still horrible by dome standards. High tall order harmonic distortion, which is more evident in the single tone spectrum plots. Poor vertical off axis response. While the faceplate is metal, I still consider the build quality lower than the Fountek or LCY.

LCY 130 ($199) - Very low sensitivity. Excellent vertical off axis response. Very close in on-axis performance to the Fountek, but at a much higher price. Good built quality - You have to like red and black jewels on the terminals to designate positive and negative. One of my test samples had a misaligned ribbon, but it did not affect things so I assume it was not touching the magnets.

Fountek NeoCD2.0 ($118) - Comparitively durable ribbon element. Of the three true ribbons, this has the best performance above 4kHz. It has the worst performance at 2kHz, rendered somewhat irrelevant because they are all terrible at 2Khz. It's excellent 4kHz+ performance is more obvious in the HD sweeps than the single and multitone spectrums however. Smooth response curve. Poor vertical off axis response.

Bohlender Graebener Neo3 PDR ($55 w/flange) - This B&G tweeter outperformed everything here, in most cases by a large margin. Response curve is ok, but nonlinear distortion is excellent. This is a very clean and natural sounding tweeter. Note: these were tested with the rear chamber in place. Later, with a different pair, I also tested with the chamber removed. The tweeter was far too overdamped in that case, and I recommend leaving the rear chamber installed.

Silver Flute YAG20-1 ($40) - Every test has to have a loser. This is it. Fairly flat and controlled response, but the distortion kills it. In fact, it may be the worst tweeter I've ever tested.

Vifa D26NC55 ($29) - This cheap little dome tweeter outperforms everything here except for the B&G Neo3 PDR in the non-linear distortion department. It works well at 2kHz like the B&G, but has ever so slightly higher HD everywhere else. On the other hand, this tweeter beats the Neo3PDR in response smoothness and the resulting smooth CSD.

A Bit About Line Arrays

These tests do not address usage of ribbons stacked in line arrays. A line array will spread the load among several drivers, which will lower harmonic distortion. When the level of a tweeter is lowered, the harmonic distortion is also lowered. This in itself does not help the level of distortion, but the ratio of the level of harmonics to the level of the fundamental does not remain linear at different levels. So, as the level goes down, the harmonics also go down, but a little bit more. This is where the improvement in harmonic distortion comes from.

Don't assume stacks of ribbons in line arrays lower distortion to levels equal to the better dome units. Evidence of that will have to wait until it's proven with actual measurements. Ears can not be trusted to make a distortion measurement, particularly when there is an emotional $5k price tag interfering with your judgement.

A note about power tapering - a stack of ribbons in a power tapered arrangement will have much more distortion than a stack of ribbons wired so that they all share the load evenly. Power tapering is simply a method to bring the design closer to a point source, which unfortunately has the side effect of bringing the distortion closer to the level of a single tweeter. How much closer simply depends on the tapering configuration.

Summary

None of the three true ribbons have very distinguished performance. They are more similar than different. But if I had to choose one, it would probably be the Fountek NeoCD2.0 because of it's durable ribbon, smooth response and clean top end performance. I'm not sure if I could live with that vertical off axis response, as I occasionally don't like to be locked in to sitting ear height. Generally, these ribbons do not live up to their price and hype. This point is driven home by their comparison to the cheap little Vifa neo dome.

None of the true ribbons, when used one at a time, should be used below 2.5kHz. The higher you cross them, the better you will avoid low end distortion. On the other hand, these are all large flanged tweeters, and as you cross higher, lobing at Fc becomes worse.

I often hear people babble on about the shimmer, sparkle and air of ribbon tweeters. These tests show where these "special effects" are coming from - distortion. Ribbons do have a unique distortion profile that many will find enjoyable with some music. That's OK, and it does not have to relfect badly on your "golden ear" status. However, if accuracy to the original signal is what you are after, one of these ribbons may not be the best solution. Ribbons are certainly not the best solution if you want to build a high-value system. Those building line arrays may want to take a good hard look at one of the longer B&G elements.

The B&G and Silver Flute are both planar designs, but they are also polar opposites. The YAG20 is probably one of the worst performers I've ever seen, while the B&G performs on level with the best domes. It's hard to say what went wrong and what went right in their designs.

Folks, we have a winner - The Bohlender Graebener Neo3 PDR

以上是踩带式高音的。

主题：最好的带式高音厂

Battle of the Non-Domes