BalancedForce 212

终极低音

BalancedForce 212基于原始Descent的突破性技术，结合了新功能和增强功能，可简化系统集成，同时提高性能。其标志性的双驱动器强制消除配置几乎消除了低音模糊的机柜共振。每个坚固的定制铝锥驱动器都由先进的基于DSP的高功率放大器驱动。结果是动态的，无限制的输出到最低频率，但清晰度和清晰度接近静电传感器。


US$4,499.99 每
寻找经销商

终极性能低音炮

您有可能在某些时候阅读或听到过将低音炮添加到静电扬声器周围的系统几乎是不可能的。虽然这不一定是真的（我们有低音炮来证明它），但这个想法是以经验为基础的。多年来，低音炮和静电器并没有很好地融合。打开潜水艇，也许你得到了更深刻，更强劲的低音你想要的但是那个美妙的静电按扣和中音清晰度，如果没有消失，现在会被涂抹和断开。

当我们开始我们的第一个低音炮项目时，我们的目标是提供好东西 - 深沉，紧凑，强劲的低音 - 而且没有坏事。我们想要制造超低音扬声器，当与超快速静电或传统的锥形扬声器结合使用时，可以无缝地融合到频率极端的最底层。 BalancedForce超低音扬声器是MartinLogan团队多年来对工程的完全实现，结合了先进数字信号处理，放大，电气系统设计和房间校正的最新创新。

BalancedForce®对齐

反对铝元素低音单元或深，干净的低音

双低失真低音扬声器将高功率磁铁结构与10英寸和12英寸铝制锥形振膜配对，可提供巨大的偏移和声音输出，同时保留微小的低音细节，所有这些都没有一丝失真。锥形材料卓越的阻尼特性确保了与高分辨率全频扬声器无缝融合所需的平滑，非共振响应。

BalancedForce 212

这些低音扬声器以“BalancedForce”配置间隔180度，完全相反，可消除失真，从而导致机箱振动并提供纯正的低音能量。传统的低音炮外壳受到与锥体运动相同且相反的反应，在机柜内产生声学振动。通过触摸机柜你感觉到这一点。虽然这种现象的“物理”实际上会导致低音炮音箱产生共振甚至跳舞，但大多数超低音扬声器设计师都会将重量或质量应用到音箱以减少这种干扰，但仍会留下一个副产品 - “模糊的低音”。 BalancedForce是一种优雅简单的解决方案，可以消除声学方程中机柜振动贡献的变量。

BalancedForce 212

放大器设计

先进的超高效D类放大器

BalancedForce subs配备功能强大的专有开关放大器，配有令人难以置信的低音扬声器驱动器，可产生严格定义的低音，同时将失真保持在最低水平。 BalancedForce 210采用850瓦D类开关放大器，峰值功率为1700瓦，效率超过90％。 BalancedForce 212具有双850瓦放大器（每个低音扬声器一个），总系统功率为1700瓦（3400瓦系统峰值）。

低噪声，高功率变压器和开关电源具有高质量的MOSFET晶体管，噪声抑制网络和控制电路，可提供极高的电流水平和极低的失真水平。分离电源轨可最大限度地减少失真，同时最大限度地提军用级玻璃环氧树脂电路板，温度传感器和保护电路可确保高质量的声音和可靠的无故障运行。

PBK室内校正和25Hz电平控制

虽然正确放置在优化超低音扬声器性能方面起着关键作用，但定位超低音扬声器通常需要妥协。可选的MartinLogan Perfect Bass Kit（PBK，另售）使用计算机和麦克风在整个聆听环境中进行聆听，并根据房间独特的声学特性调整潜水艇的性能，从而产生干净，强劲的低音，直至最低频率。

此外，内置的25Hz电平控制允许听众将超低音扬声器输出调整±10dB，并通过在20至30Hz范围内切割输出来补偿过多的房间增益，或者通过增加那些来强调低音能量的感觉频率。

BalancedForce 212
BalancedForce 212

自定义低通滤波器
个人扬声器型号

定制的低通滤波器可用于过去30年内发布的几乎所有落地式MartinLogan扬声器。这些可选的自定义滤波器可调节超低音扬声器的低通设置，以便与各个扬声器型号的滚降特性无缝融合。过滤器可通过USB拇指驱动器的用户友好过程轻松安装，并可免费下载。目前有许多独特的过滤器，随着新的扬声器发布，将添加额外的过滤器。

美丽的装饰

高光黑色橱柜和顶部装饰是标准配置。顶部饰边有多种可选的高光，硬木和实木贴面饰面。

BalancedForce 212
BalancedForce 212

密封柜

尽管端口是增加低频输出的一种方便且经济的方式，但它们对谐振能量的依赖会降低低音质量。无论音乐或电影源材料如何，BalancedForce超低音扬声器的密封系统都具有较少的瞬态模糊群延迟，同时保持平滑，一致的响应。

多输入选项

用于无缝系统集成的同时LFE和双通道连接

强大的连接和控制系统允许同时连接2声道立体声音乐和多声道家庭影院，并允许每个声源具有单独的分频和电平设置，使听众在每个应用中都能获得完美的演奏。通过RCA或XLR的LFE输入有效地不使用低通滤波器，而是将交叉控制留给处理器。左右RCA，XLR和扬声器电平输入集成了离散的用户可调节或扬声器特定的定制安装的发烧级低通滤波器，可在播放双声道音乐时提供不同的电平和交叉点。

BalancedForce 212
BalancedForce 212

顶部安装的控件

顶部安装的控件分别隐藏在烟熏玻璃重点面板下方，可轻松调节重低音扬声器的设置。

无限制的调整

通过牢牢按下烟熏玻璃面板，进入顶部安装的控制面板。您将找到所有标准的低音炮控制，如Level，Low-Pass Filter和Phase，以及MartinLogan独有的一些。

独特的音调扫描功能可帮助用户定位听音室中可能出现麻烦的嘎嘎声或共鸣的区域。只需按一下按钮，听众就可以启动120-20Hz的音调扫描。如果在房间内发生拨浪鼓或共鸣，则按下该按钮可保持当前频率，从而允许听众调查并识别信号源。

“开/自动（触发）/关闭”开关控制超低音扬声器的节能功能。 “开”设置可防止子进入节能模式。当设置为“自动（触发）”时，子音将在检测到音乐信号时打开，并在几分钟后没有信号时关闭。如果连接了12伏触发器，触发设备将打开和关闭超低音扬声器。

定制能量传递耦合器（ETC™）尖峰可提供更大的灵活性，可增强厚地毯的稳定性，或在低音炮和地板之间创建更紧密的耦合，从而提高整体音质。

BalancedForce 212

按

MartinLogan BalancedForce 212 subwoofer

"The BalancedForce 212s are so flexible that I can imagine them—used in almost any room, and with almost any speaker—restoring the tactile impact and low-end reach that other subs usually leave by the door... Whether or not you have MartinLogan speakers to pair them with, I strongly, strongly recommend the BalancedForce 212. It's definitely not a tubby thumper, and no imagination is needed, because nothing is missing. "

—Jon Iverson, Stereophile
阅读完整的评论»


MartinLogan BalancedForce 212 Subwoofer

"The BF212 is one of those rare subwoofers that can be described as essential. It delivers uncompromised bass with clarity, accuracy, and an utter lack of colorations. Once it’s been tuned to a room with ML’s Perfect Bass Kit, there’s a high likelihood that you’ll never need another sub. Never… it is my judgment that the BalancedForce 212 is in a class with the best subs available to the home-audio enthusiast. The BF212 is one for the short list -- it’s required listening for anyone who’s dead serious about the low end. Highly recommended."

—Kevin East, SoundStage! Hi-Fi
阅读完整的评论»


奖项

要使用扬声器运行Anthem Room Correction（ARC），您需要购买PBK或ARC套件（请注意，MartinLogan Perfect Bass Kit（PBK）麦克风与MartinLogan扬声器的Anthem Room Correction完全兼容）。每个套件都附带一个独特的麦克风。

要下载最新版本的ARC，请单击下面的链接直接访问Anthem的网站。

获取最新的ARC软件»

System Requirements

ARC Genesis requires an ARC or PBK Microphone, a Mac OS X (10.12+) or Windows (7/8/8.1/10) computer, and an ARC or PBK compatible audio product. One USB port is required. If you are using a laptop computer, check power settings and battery meter before starting to ensure the procedure is not interrupted.

产品规格

规格如有更改，恕不另行通知

频率响应

18-120 Hz±3dB;通过LFE效果输入的消音

阻抗

RCA：10,000欧姆
XLR：每相15,000欧姆
扬声器电平：每相10,000欧姆（20,000欧姆红色至黑色）兼容4,6或8欧姆额定放大器。

低频传感器

两个12英寸（30.5厘米）铸篮，高六角形，带扩展投掷驱动器组件的铝制锥体，密封非共振不对称腔室格式

放大器

2 x 850瓦
（共有3,400瓦的峰值系统）

房间修正（低音部分）

完美低音套件（PBK）就绪（单独出售）

音频控制

开，自动（12V触发），关闭

低通滤波器频率

30 - 80Hz

输入

RCA：左，右和LFE。
XLR：左，右和LFE。
扬声器音量：左右香蕉插孔。
12V触发：3.5mm
迷你USB（用于PBK）
USB（用于交叉和固件更新）

力量吸引力

典型值：250瓦
空闲：30瓦

重量

140磅（63.5千克）

外形尺寸

22.6“x 22.6”x 22.9“
（57.4厘米x 57.4厘米x 58.2厘米）

顾客评论 对于 BalancedForce 212

请, 登入 要么 注册 添加评论.

USAcompuA

  • 2019年12月11日星期三

THE BEST SUBWOFER IN THE WORD

GW1800

  • 2018年2月15日星期四

Let me just say straight out that I’m a believer in subs - actually a pair of subs. I know not all will agree. There are good reasons in the past to not incorporate subs but I think now those reasons are moot unless just the thought of having a sub is troublesome which some claim. There has been forever the mystique about full range speakers but very few can really get the job done and besides the ones that do most of us can’t afford anyway. Volumes of air needs to be moved and small cones or multiple thereof just come up short. Also that low end load can put a lot more strain on your amp to drive to the lower frequencies. Having a sub removes a great deal of that load so it can concentrate on 90% of the total sound much much better. Good bass to me is so essential and even though subs only handle the low end they seem to impact the whole sound way beyond its rather narrow frequency range. Good non-boomy bass is essential to the listening experience – period! In comparison bad bass can do the exact opposite probably even make the listening experience much worse than great bass improves. However as good as subs are today the troublesome issues as the ‘no sub for me crowd will tell you’ – better integration with the main speakers and room interactions are big problems left unresolved satisfactorly and they are right. This is exactly what the 212 does so well and so much more! I’ve had my 212’s for a few years now and they continue to amaze me in performance, looks and integration. I’m using these with a pair of CLX Art speakers and am very happy with how they round out the very bottom octave or so. I previously had a pair of Descent i’s with Summit X’s that I liked very much. However room placement was limited and I could never quite get comfortable with the bass produced in that room. There were plenty of adjustments on the Descent and Summit X’s but those adjustments came up short in my opinion. I blame it all on my room as since then I have moved them to a larger multi-channel room and they are performing very nice indeed. Since my choices for placement are very limited in the music room I needed a sub that could produce good bass where I put them. I can’t say enough about the PBK kit and the software that does exactly that and more. It’s quite easy to perform and you get to see on a graph just how a room is beforehand and the near perfect correction the software calculates – it’s just amazing! Combine this with the custom crossover that is available for most if not all ML speakers there now is some serious sonic improvements happening indeed! I’m familiar with the Descent i design with 3 cones and was a little troubled with the new 2 cone design. It seemed to me the design of the 3 cone was very well thought out so I was concerned with the change and why. Let me say that now that I have experienced the new design it is definitely an improvement at a very basic level. One thing that they did keep from the older design were the controls on top – smart and very convenient. So when you add it all up the much better integration of the sub to your room using the PBK kit, the custom crossover for the main speakers and the basic design improvements this is a real big step up on sub technology! Sub doubters beware you may have met your match!

Roger E.

  • 2015年1月18日星期日

Essential addition for large spaces, build quality is first rate
I have a pair of 212s teamed with Martin Logan Summit Xs to fill an open concept house with sound and the 212s are a key component to creating a unbeatable audio experience. After much research I concluded that my subwoofers needed to be precisely matched to my electrostatics, and the 212s were the answer. I have the 212s placed on the other side of the house from the Summit Xs but you would never know it as the lower frequencies appear to be coming from the Summit Xs. The 212s are not inexpensive, but the build quality and audio rewards are top notch, and it is a product that will last you for a few decades.