统计一下,这论坛里有多少自己在玩MAGNEPAN的 [复制链接]

开始摩啊?

还没想好怎么动手,可能先从脚架开始吧.里面的元件虽然好动,但是这个东西不像传统箱,分音器好拆,如果要是上好元件肯定要外置分音器了.正在酝酿中.

看看老外怎么修MAGNEPAN IIIA

Magnepan IIIA Rewire By Derek Atkin atkin11j@yahoo.com I have always wanted a pair of Magnepans. Found a set of MGIIIAs on ebay that happened to be at an audio shop around the corner. They were described as being in good condition - with one bass panel out. I traded an old Marantz receiver for them and the fun began. I tried to repair the broken wire on the bass panel but it kept just falling apart. I knew that I would have to tackle a rewire on these speakers. Below is the chronicle of a Maggie re-wire. Start by calling Magnepan and getting a repair kit for your speakers. The folks there are really helpful and its pretty specialized stuff, trying to track down the special wire (22ga & 31ga for the MGIIIA) is not worth it. I spent $140 for the bass and mid repair kits, two new black socks and a set of four tone discs.
Here are is the original untouched speaker as I brought it home and fired it up. You will notice what looks like a water stain at the bottom of the sock. Amazingly, everything under the covers looked ok. It took a while to get all the staples off to finally be able to remove the cover. I never removed the ribbon tweeter, was able to work around it
As you can see, these are not always wired from the factory in perfect shape. Wires are sometime crossed. People think that the green is a copper patina. The adhesive magnepan uses is actually green in color. All those wires are aluminum.
If you look closely you can see the little white zits on the wires. These are pockets of corrosion that eventually disintegrate the wire, and cause an open circuit.
First step is to strip off the old wires. Acetone and patience are the two major ingredients. Make sure before you start that you document the speaker. A wiring diagram and many digital pictures are essential. I counted the wires and noted where the double loops were, also where is one started and ended. You can not over document this step. Do not do both speakers at once, leave one all together for reference.
Using acetone and paper towel carefully clean all the old adhesive off the mylar. Use small pieces of scotch tape to fix any tears. Do not try to sterilize the mylar, to much pressure especially near the edges can tear it. If you have the tuning discs installed, very carefully drill out the rivets. I used a Dremel as it was smaller and offered more control
Here is the Mylar all ready for its new wires.
I choose to tackle my speakers without a jig. I had another person available to help with the rewire and we just did it by hand. The wires may not be 100% symmetrical but it doesn't really matter. As long as the wire runs are similar and in the magnet channels, the speakers will sound fine. I am not a good woodworker and figured it would take more time to make a jig than to just do them by hand. Lay down a base of 3M #77 spray adhesive and start running the wires. I used an empty X-acto pen knife handle (blades kept at a very safe distance from the panel)for the bass wires and just did the mids by hand.
I used a small collection of washers to make sure the wire loops stuck down, don't leave them on to long or and extra cement might make them part of the speaker . Make sure that you leave plenty of wire and label them well.
First panel wiring runs are complete.
The tools of the trade. I found the special 3M Fastbond 30NF adhesive at Grainger. It was $22 a quart. In my attempt to initially repair the speaker, I got some aluminum specific solder and flux from a company call Kapp Alloy. Magnepan gives you solder in the kits they sell, I found this to work really well. It was at this point that I soldered my connections and tested the speaker. The wires are insulated, so you need to strip the insulation off. I used a combination of the soldering iron and a 220 grit sandpaper. For the 31ga wire, i joined them and soldered as a single wire. When done make sure you seal up the connection with the silicone. When testing the speaker make sure to keep the power to a very minimum, I wanted to confirm that they were operational. I also ran a multi meter across the circuit from the speaker terminal and got about 5 ohms for each driver.
You need to apply two light coats of the 3M contact adhesive. I waited a minimum of 12 hours between coats, using a 1" brush to apply.
After I reattached the discs and put the stands back on. I hooked the speakers up and let them play for a while. The adhesive had dried for a few days. Magnepan said that it might remain tacky for a little while yet. As long as its not "wet" tacky you should be fine. It is true, when these things are complete - they look like some bizarre 8th graders science project went wrong.
Back side of the finished right panel. I choose not to cut out the covers for the tweeter. It makes access a whole lot easier. The new socks from Magnepan went on without a hitch. Need 1/4 staples and a staple gun to attach at the bottom. I did a small cutout for the back panel and stretched the material around it.
Front of finished right panel
Finished left panel. These sounded like crap when I first hooked them up. They require just as much break in as a new pair of speakers. All in all the process took about three weekends to complete. Nothing really super complicated. I was the most nervous about tearing the mylar, so taking the discs out was probably the biggest pain. This is basically the same thing the Magnepan does when you send them your speakers. I would guess that if these need this process done again, I would probably send then in and the mylar would need to be replaced. Total cost with all the stuff was under $200.

这个老外家的器材都是廉价。。。。

我在网上一直看到有人说MAGNEPAN如何的好。去年秋天我在附近的JS那里听了一次1.6。当时用的是麦金图的6900。初初一听觉得声音单薄，听了5分钟后就没有兴趣再听了。放女声丝毫没有情感，听小提琴也觉得声音奇怪，和真实乐器相差很远。后来JS拿来了一对Audio Physics Yara Evolution，用同样的功放来推。相比之下就更没有兴趣听1.6了。价格便宜的Yara秒杀了1.6。MAGNEPAN很不好卖，今年再去那家JS，他已经不代理了。

而且MAGNEPAN的东西尺寸太大，家里放着如果是黑色的颇有在灵堂听音乐的味道。LP大人要第一个跳出来反对。

原帖由 bennylookli 于 2009-5-13 12:21:00 发表 谢谢水公和potrain兄的关心 小弟也不是很会玩 只是非常喜欢听音乐 爱到现场听演奏会 一般的演奏水平没有唱片的好 所以也要搞套器材听听 目前还是比较满意的 可能和大家的系统比就不够威了 另外我是从小在广东长大的 呵呵 20岁才到上海 能在168认识那么多朋友 心里真的很开心的 虽然有时候也扯大炮——秒杀类的话 呵呵

现场演奏无论水平如何（当然要是专业的，不是学生的义卖场），真实的音乐总是要比录音要感人。音响再好也不是那么直接，和艺术家总是隔开一层。

我是禅城的MG1.6用家，方便的话真想去你那里观摩一下。

原帖由 j_walk 于 2009-5-16 10:19:00 发表 这个老外家的器材都是廉价。。。。

廉价的不一定声音不好,贵价的就一定好声?千万不要看不起那些廉价的器材,最起码我是不会去用天价器材的.
曾经记得03年在北京西三环的超音波买LINN的那家店里,跟一位老师傅聊天,当时我还没有什么好器材,老先生让我听一套还是不错的linn,估计也就7-8W块的东西吧,听完后我说感觉还好,他问我喜欢什么样的声音,我也很难形容,就随手拿出我当时带的MP3给老先生听,当时里面放的是我从CD上抓下来的鲁宾斯坦弹的萧邦夜曲,用的是森海的MX400耳机.我说:'只要能达到这样的效果就好"老先生听完后说了一句至尽令我难忘的话,"如果你想要在大系统上达到这样的效果和感觉,你至少要用30W以上的系统.小伙子,别玩音响了,专心听音乐吧."
有很多时候器材的情感表达不是靠价格来衡量的,我现在还有一台欧博的C30 2A3单端的小胆机,功率只有3W,在我的机器里要论音色和情感表达这机器是最好的,但是其功率局限性还是太大.
关于您说的MAG试听的搭配
个人感觉搭配还是很关键的,麦记的功放本身素质不容质疑,6900没听过不好说究竟怎样,但是麦记的东西本身速度就相对较慢,用来搭配MAGNAPAN恐怕有些牵强.还是那句话,没试过的不好断言.
MAGNEPAN在我家也不是一开声就完全满意的,摆位要以CM为单位调整,很简单的例子:在我家左右两只喇叭的内凹角度是不同的,相差4度.高音乐条带到我耳朵的距离也是有差距的.喇叭与后墙距离如果差10CM声音平衡度也会听出差异.在JS那里恐怕很难对一对价格便宜的喇叭如此细调,人家也是要做生意的.
大家对MAGNEPAN的评价不一致也就不奇怪了,着就是我说为什么要找自己花钱买了MAG玩了三年的人的原因,很多人都是刚一接触到MAG没有深究就很快出 手了.
MAGNEPAN也不是没缺点的,本身第一大缺点就是难玩,第二大缺点是对音乐的演绎能力,绝对称不上是顶级高手,至少在我这里他只是有比较合格的音响性,但是对于音乐的理解上MAG现在还是不能让我满意.至于大家所说的低频问题我倒不是很在意.

对音乐的演绎能力---------------------应多关注这点

上面那个老外的MG如果好声的话运气非常好，MG忌吸音，对摆位要求严格，要求控制力较好的后级。

原帖由 potrain 于 2009-5-16 11:49:00 发表 原帖由 j_walk 于 2009-5-16 10:19:00 发表 这个老外家的器材都是廉价。。。。 廉价的不一定声音不好,贵价的就一定好声?千万不要看不起那些廉价的器材,最起码我是不会去用天价器材的. 曾经记得03年在北京西三环的超音波买LINN的那家店里,跟一位老师傅聊天,当时我还没有什么好器材,老先生让我听一套还是不错的linn,估计也

一般的居家是没有条件这样讲究摆位的。特别如果像我一样把音响放在客厅里，当中还有一个大电视。


还有就是这个东西的尺寸，真的是一个屏风啊。放在客厅在视觉上本身就非常之奇怪，特别如果还要远离墙壁，放在当中才能出好声。


呵呵，上海的房价贵啊。买这音箱省了钱却把客厅的总体形象破坏了。如果是另外有听音室，也是需要更多的钱。得不偿失的说。


最重要的一点就是LZ说的，听音乐才是最重要的。花好几年才能玩好1.6，还要保证听音环境没有变化，实在太累。本末倒置的说。