6.5" to 7" 单元比拼

meridian

don't agree with Per Skaaning's argument regarding evaluation of a driver without a crossover. That's fine, if that driver is going to be used without a crossover. eg. full range driver, but when the system will use a crossover you need to evaluate the entire system. A crossover is not a just a filter. It tailors the frequency response and overall voicing.

Better drivers have these cone breakups a little further out of their passband, but you still have to deal with it by a properly designed crossover. Throw away all those textbook crossover formulas and you better invest in some measuring equipment and software. Otherwise you'll never get it right.

老外评价ＡＴ的＂优势＂
IMHO the two greatest advantages of using AT drivers is that
1) you can place custom orders, even when ordering single units.
2) you can achieve good results even without a proper XO design, simply because the driver have a very flat and smooth broadband frequency response AND rolls off smoothly.

elfchen

好资料

meridian

http://www.linkwitzlab.com/mid_dist.htm
想起来喇叭听起来满意就可以了，但是老外发烧过了，非要挑骨头．各个频段测失真．忘了喇叭也是商品，也要商业妥协！

core2duo

”惠威的D6.8具有3寸的音圈和嵌入式磁体，这点与摩雷和单拿的低音单元很相似，但惠威有超长的冲程，在谐波失真方面也做得更好，要是我买这种类型的喇叭，我会选择惠威而不是摩雷或者单拿，希望你也不要介意螺丝太多，因为惠威用了12颗螺丝，感觉有点过多了。“

看来大家都是盲目崇洋媚外啊，老外都说惠威的单元比单拿的还要好。

meridian

想想当年ＤＹＮＡＵＤＩＯ　Ｔ３３０Ｄ叱咤风云的时候，似乎没有这么多ＰＫ的争议．那种军临天下的风格在中底音单元总是找不到．
试问当今的中底音单元有谁敢叫板天下！

abcd

老外被惠威收买了！！（这话不是我说的）呵呵！！

meridian

微型的Avalon
The cabinets were built by Guido Smitsmans from The Netherlands and made of 18mm+4mm mdf; the front baffle is extra thick with a total thickness of 48mm. The cabinet features a faceted front baffle; a shape that further reduces diffraction, allows for a thicker baffle, and contributes to wider dispersion. The entire faceted structure is a solid block made from three layers of mdf. To create the angled baffle the four corners were away as can be seen on the photos below. Internally there are no bracings due to the already sturdy construction and one of the design criteria was to keep the enclosure as compact as possible. All internal walls are covered with a layer of 4mm thick bitumen and thick carpet tiles with a bitumous backing to add extra mass and control panel vibrations. The enclosure is filled completely with sheep’s wool. The area around the reflex port is left clear. The 18mm thick black painted base-plate acts as a visual plinth to give the speaker a more graceful appearance and adds a little extra weight and strength to the enclosure. The Cup-a-Soup is a ported design to give deeper bass extension. The cabinet's swept-back profile better time-aligns the drivers.
箱体结构,内部沥青加羊毛毡,该考虑的都考虑了.

abcd

这么好的资料怎么没多少人顶啊！！可惜是E文

xmh

的确有代表性，看着......眼睛乱转，心脏乱跳

xhj

meridian兄，最近改变烧的思路了？