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JLM音频MAC机架

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2011年3月17日

MAC Comp Front明亮副本

Made in Australia – by 您 if 您’d prefer – this opto compressor is as brilliant sounding as it is simple to use.

 

评论: 安迪·斯图尔特

 

It’s taken ages for me to review this fabulous new Mac compressor by JLM Audio. Joe Malone, Australian audio circuit designer extraordinaire 和 owner of the company, initially sent the compressor down to me in kit form – it’s a compressor 您 make up 您rself 您 see – 和 for months the unit sat optimistically on my workbench waiting for me to find spare time to construct it. It seemed appropriate, I thought, that if I was going to review it, I should be the one building it.

但是那天从来没有来过。我有一次关闭,但是在那不幸的日子里,我很快发现没有指示–  – 您 have to download these from the JLM website, which I wasn’t in a position to do. Damn!

The box was opened on the workbench, 和 there the components lay in neat plastic-wrapped piles for some months. Later still it became an unwrapped shemozzle of 电阻器, 电容器, opto 细胞 , VU meters, 变形金刚, switches 和 screws… which were somewhat disturbingly starting to merge with all the other VU meters, 变形金刚, switches 和 screws already on the workbench. Eventually I had to admit that, for as long as I was the one constructing it, this thing was never going to come together. Sheepishly, after some months, I rang Joe, asked if I could send it back 和 get him to build it for me, which he most graciously agreed to do. Only then did I find out 您 can buy them already made-up! “Now 您 tell me!”

化妆增益

Mac压缩器是基于光电池的单机架立体声压缩器,可将电路的增益降低。 Mac与以前非常著名的模拟压缩器共享此设计组件,其中Universal Audio的LA-2a和LA-3最著名。但这基本上就是相似之处结束的地方。 Mac是一种固态固态设计,具有极高的简约性,但是它在前面板上也提供了许多控件来操纵音频信号-相当 不像 an LA-2A. Look 内 the unit 和 its mostly made up of wide-open space. Joe’s approach to the design of the Mac was to essentially, “keep the circuit well out of the way of the audio signal,” by which he obviously meant, maintain the audio integrity of the signal by building an elegant 和 simple circuit featuring low-distortion components, high-voltage rails 和 plenty of headroom (+28dBm). In this regard he seems to have succeeded brilliantly.

Like all kit-form 压缩机 I suspect the most critical aspect of reviewing the Mac for others is to describe in some detail how it sounds, given that the compressor is not something 您 can test by walking into a shop 和 trying out 您rself. For my part I’ve never bought a kit-form compressor for this very reason, no matter how much hype surrounded it, mainly because there’s essentially no way to decide whether it sounds sublime or crap until after 您’ve paid for it 和 spent ages building it – assuming 您 even can.

到那时...

If 您’re contemplating building a JLM Mac compressor 您rself, take it from me: the sound of the device is quite simply fantastic. I have a stack of 压缩机 in my rack these days but none sound like this one. The simplest way to describe the Mac is that it makes things sound bigger 和 fatter the harder 您 hit them. Whether the signal 您 feed into it is an out-of-control, overly dynamic pair of raw drum overheads, or a nearly finished stereo mix, the Mac has an uncanny ability to place a resistive, near transparent elastic film across it that sonically presses back against the signal in a most luxurious, forgiving 和 almost tape-like manner. Things get appreciably bigger sounding, less edgy, brittle 和 sharp, 和 all in a beautifully attractive way.

Mac非常擅长于消除苛刻的吉他,尖尖的和轻快的歌手。它使过度的动态混音与类混在一起,几乎就像半英寸的Studer胶带机一样,创建了一个大的,圆形的,带有衰减顶部的底端。您越难以压缩信号-相信我,您可以为该产品提供很好的粘贴效果-信号获得的信号越大,越胖,越平坦且越平坦。最终,这东西当然开始抽起来,听起来像是被压扁和沉闷,但即使绑在混音总线上,我也经常发现有一个大约15dB的窗口可以打开,这取决于我想要实现的目标。据我所知,只有很少的立体声压缩器可以在调用混合总线时提供这么多的选择。确实,有些仅勉强提供,而其中一些较著名的仅在增益降低水平仅高于4或5dB时就可以跳起来。使用Mac,您可以对信号进行挠曲处理以进行超透明的压缩,对它进行适度的控制以获得稍微发胖,更弯曲的音调,或者对它进行半纳尔逊并将其摔跤到垫子上。关于所有这些选项的最好的事情是,它们听起来听起来都是有效的,您只需要选择您喜欢的那个即可。我认为这是我从使用该压缩机进行的实验中得出的主要结论;即使您施加的压缩看起来多么荒唐,信号仍然在音乐上值得考虑。

 CONTROL OPTIONS

The other great thing about the Mac is that it’s fantastically simple to use. Moreover, 您’d be hard pressed to cause a train wreck with it unless 您 wind the controls way out of whack. Like on an LA-2A, two of the Mac’s central controls – repeated on the left 和 right sides of the stereo unit – are ‘Gain Reduction’ 和 ‘Output’. The more 您 turn Gain Reduction clockwise the more action 您 draw from the compression circuit. It’s worth noting here also that although there’s a ‘Link’ switch for stereo operation, all these controls remain active, 和 it’s better to manually adjust setting for left 和 right first before 您 flick the link switch in – easy enough to do.

在花式圆形VU表和增益减小旋钮之间(在设备的两侧),有一个垂直的三位三位开关。这些中的最高端提供了3:1、5:1和10:1的比率控制。在此下方是一个“ VU / GR”开关,它可以控制设备总输出或压缩机增益降低值的VU计量。该开关的中间位置完全绕开了压缩,同时关闭了仪表。这是Mac的不寻常功能,我最初发现它有些奇怪,但很快就变得喜欢。当压缩机处于旁路状态时,使仪表上的所有活动都停止,这是一种完美的横向和逻辑方法,即使在仪表外也能显示该单元只是通过信号。

底部开关可对输入到压缩机的侧链提供高通滤波器控制,以帮助其避免在遇到低音重音瞬变(如怪兽踢等)时出现不必要的抽气。请记住,这些过滤器与您在桌上的均衡器所听到的方式不同,它们只会影响压缩器侧链的内容<<inside>>那个单位。整体输出听起来不会更细。这里提供的三个位置是:“ Flat”,“ 100Hz”和“ 200Hz”,这两个滚降交叉点插入了柔和的6dB每倍频程滤波器。有趣的是,即使在逻辑上建议我应该使用的时候,我实际上也从未在设备上使用这些过滤器。切换它们肯定会有所不同,但实际上似乎更喜欢压缩机产生的任何抽气。每次(早晚)我最终都脱离了滚降,即使将其用作混合总线压缩机也是如此。他们很容易上船…

巨无霸

这款压缩机的声音,外观和感觉都令人印象深刻-坦率地说,我迷上了它。令我惊讶的是,Mac具有如此多的用途,它在机架中的表现不俗(带有花哨的珠光白色VU,绿色和红色链接以及电源LED),听起来像磁带上的压缩一样。一些信号。 (如果您打算购买一台磁带机,则可以考虑一下)。更重要的是,在澳大利亚拥有如此优质的产品真是太好了-<<you>> no less, if that’s 您r preference. It’s a shame I didn’t get to experience making the review unit myself, but it’s nice to know that JLM can make them for 您 if, like me, 您’re a bit ‘time poor’ or incompetent on a soldering iron. The Mac is a worthy 类似物 opto compressor for 您r rack, even if 您 think 您’ve already got everything 类似物 compression has to offer.

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石灰Cordiale
更好录音的14个步骤
立即在线阅读
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问题 67