2016年大挑战:Wilson Audio alexandria XLF音箱制作(上)

来源:bbs.hifidiy.net 发布者:179win 版权:原创

Troels Gravesen博士开发的Jenzen Illuminator-5单元数量、构架、组成与Wilson Audio alexandria XLF非常类似,其文档介绍、元器件选择、分频线路以及测试数据都比较详实.....

自2012年开年大挑战PASS 160.5后,已经过去4个年头,期间除零零碎碎进行了一些小的折腾,少有动手大的制作。和大多数Diyer一样,手虽然没动,心却一直没停过……

一直琢磨着能否把音箱:这个一直困扰的问题彻底解决掉。与放大器不同,要彻底解决音箱的问题可谓难上加难,优秀的图纸少、套件少、制作难(除了电气部分还要木工功底)、调试难……

随着一些机缘的到来,心中又再次萌发在2016年开年进行一次大挑战的念头,在几个同城烧友的鼎力协助下,开启了一条艰难的征程!

wilson audio alexandria XLF

说道机缘,这里解释一下:

1、Troels Gravesen 博士的Jenzen Illuminator系列,近期开发了Jenzen Illuminator-5,其单元数量、构架与组成形状Wilson Audio alexandria XLF非常类似,

其文档介绍、元器件选择、分频线路以及测试数据都比较详实,为打造Wilson Audio alexandria XLF奠定了一个很好的基础。

Jenzen Illuminator-5:http://www.troelsgravesen.dk/Illuminator-5.htm

jenzen illuminator-5

2、同城烧友bibiliu同学超强的CAD能力、设计能力和音频调试方面的技能给了我极大的鼓舞与信心。

虽然有了信心,但要打造一个Wilson Audio alexandria XLF外形出来,对于我这样完全没有木工经验人来说可谓是难上加难,太多曲线、弧线即使用雕刻机很多局部仍然无法完成。

Wilson Audio alexandria XLF原箱

图片为Wilson Audio alexandria XLF原箱

从另一方面来说,这样也好,看一个完全没有经验、没有专门场地的发烧友,到底能做到什么程度,其经验、教训、挫折……也可以为类似于我这样热爱音响的同学提供参考和借鉴。

最后要感谢论坛烧友bibiliu、softpack以及Mr.胡给予的无私帮助与支持,没有你们的参与这个挑战不可能开始也不可能完成!

关于Jenzen Illuminator-5

Troels Gravesen博士关于Jenzen Illuminator-5声音的评价:

“I can't tell you what this Illuminator-5 sounds like. Like food and wine, you'll experience something different from me. Auditive perception is just as subjective as taste and smells.

I've already told this speaker can play seriously loud and deliver a punchy bass, but what surprised me the most was how low it can play. Thanks to the dispersion of the small midrange and the presence it creates, we don't loose grip of the music when listening at low levels. We maintain the ability to catch subtle nuances and tonal colour even when turning down the volume to quite low levels.

I'm sure I'll have the question on a smooth midrange and silky treble. These phrases really mean nothing, but YES! It's got a non-aggressive midrange, all of the midrange. Even with the tweeter tuned to a fairly flat response, you'll listen to treble, not tweeter. We really shouldn't be able to hear the tweeter as such. If we do, it plays too loud. And yes, it does vocals really well too. I've tried all my troublesome vocal recordings and this speaker just doesn't care. One thing that can turn vocals aggressive is beaming of the midrange driver, for full-range drivers this is often heard as the "midrange shout". This phenomenon is effectively eliminated by the small 12MU driver. The 12MU also creates a better placement of vocals and instruments in space than the usual 6+1 set-up. It simply creates a better 3-dimensionality.

I run these speakers from my  bi-amping set-up: GlowMaster KT88 for the MmT section and a Hypex digital for the bass module. The Illuminator-5 likes a little more power than my  ATS4 speakers, I guess we're talking 1-1? dB reduced sensitivity compared to ATS4, but it's only one click more on my attenuator.

Setting up the speakers in our living room was unproblematic. Same place as ATS4 and a little experimentation on toing-in made it.”

单元的选取:

Speaker basics:

扬声器单元

5-way speaker system or you could argue the 22W not having a high-pass filter makes it a 4?-way due to the use of two bass drivers having different low-pass functions.

Bass reflex, closed box and aperiodic tuning is used for lower bass, upper bass and middriver respectively.

Points of crossover; 80, 180, 900 and 2800 Hz, 2nd order LR, mids and tweeter time-aligned.

Impedance: 4 Ohms, minimum 3 Ohms.

Sensitivity: 88 dB/2.8 volts, 1 meter.

Amplifier requirement: Minimum 50 watts.

分频:

illuminator-5分频

关于Wilson Audio alexandria XLF就不多介绍了,大家可以去网上搜。

威信alexandria XLF

准备工具。

DIY工具

背板的接线板和接线端子:

背板接线板

背板接线板

背板接线板

CAD设计、开版下料:

CAD设计

CAD设计

CAD开板

CAD开板

CAD开板

CAD开板

没有专门的厂房,只好胡乱到处放。

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高音

高音

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