标题: Pass今年全面升级了.8系列，不知哪里有提高 [打印本页] 作者: gm70 时间: 2014-3-27 21:20 标题: Pass今年全面升级了.8系列，不知哪里有提高 “XA.8” Pure Class “A” High Current Series
XA200.8 200 watt class A mono block $40,000 /pr
XA160.8 160 watt class A mono block $26,000 /pr
XA100.8 100 watt class A mono block $19,300 /pr
XA60.8 60 watt class A mono block $12,800 /pr
XA30.8 30 watt per channel stereo $6,500
“X.8” High Voltage Series Amplifiers
X600.8 600 watt mono block $26,000 /pr
X260.8 260 watt mono block $12,800 /pr
X350.8 350 per channel stereo $13,500
X250.8 250 per channel stereo $9,600
X150.8 150 per channel stereo $6,400作者: gm70 时间: 2014-3-27 21:26
Point.8系列放大器提供高功率，更少的阶段，较低的失真和较少的反馈。按照Foresthill中，总部位于加州的公司，单位准确地表示非常深沉的低音和高音延伸录制场地。
Point.8 Series amplifiers deliver high power, fewer stages, lower distortion and less feedback. According to the Foresthill, Calif.-based company, the units accurately represent recording venues with very deep bass and extended highs.
The series consists of five Class-A amplifiers and four Class AB amplifiers, four two-channel and five monoblock models. The two-channel amps include the X150.8, the X250.8, the X350.8 and the XA30.8. The mono models include the X600.8, the XA60.8, the XA100.8, the XA160.8 and the XA200.8. Their per-channel power ratings range from 30 for the two-channel XA30.8 to 600 for the single-channel X600.8.
Inspired by Pass Labs’ X.5 Series amplifiers from 2006, the output stages of the larger Point.8 Series have been designed to bias more deeply into the Class-A operating region. They feature large push-pull Class-A operating envelopes for low distortion and good loudspeaker control at ordinary listening levels.
The Class-A amps employ higher power Toshiba MOSFETs (metal-oxide semiconductor field-effect transistors) than earlier amps. MOSFETs are typically used to convert voltage. Those in the Point.8 Series run at a fraction of their stated specs. The company also installed many more MOSFETs than usual on most Point.8 models. The X250.8 and XA100.8 amplifiers each use 56, while the X350.8, X600.8, XA160.8 and XA200.8 models each use 72.
Pass Labs also improved the amplifiers’ front ends, which house the input and voltage gain stages. Each of the nine Point.8 models has a front end uniquely molded to the specifics of its output stage so that the nine front ends vary in size, voltage, bias current, dissipation, and the distribution of single-ended vs. push-pull bias.
The improvements yield directly coupled (DC) front ends that boast very high stability, low distortion, low noise, 100-Khz open-loop bandwidths, and high input impedances.
The power supplies are also larger than those of earlier amplifiers with a third more storage capacitance as well as new CRC (capacitor-resistor-capacitor) filtering. The power supplies still use paralleled fast/soft rectifiers and large toroidal transformers from Plitron, but the AC primary circuits now incorporate additional RF filtering. Power on/off switching and a stand-by draw are also new. In addition, Pass Labs improved the amplifiers’ output noise by more than 10 dB, and made the amplifiers much more resistant to variations in the AC power line.
The smaller Point.8 models — the X150.8, the X250.8, the XA30.8, the XA60.8 and the XA100.8 — also feature new and larger heat sinks to lower distortion and dissipate the energy of the larger bias currents. 作者: gm70 时间: 2014-3-27 21:31 作者: gm70 时间: 2014-3-27 21:39
xa160.8 160瓦级单
我们很兴奋！因为我们庆祝我们第二十三年通过我们做过的最好的放大器。我们的新的8系列，x.8与XA。8，操作“高”为A和比以往桥梁测量性能和主观经验之间的差距。
XA160.8 160 Watt Class A Mono
We’re excited! Because we’re celebrating our 23rd year by presenting the best amplifiers we’ve ever made. Our New Point 8 Series, X.8 & XA.8, operate “higher” into Class A than ever before and bridge the gap between measured performance and subjective experience.
Designed for audiophiles by even more demanding audiophiles, they invite listeners into the music as never before. Even more, they represent a summation of our expertise in designing amplifiers, while elegantly expressing our philosophy of more amplifier, more progress and more music.
Seven years in the making, the Point 8 Series demonstrates our belief that the best products must be carefully adjusted until their components operate in harmony — then subjectively fine-tuned. Not satisfied with measurements alone, we put the amplifiers’ state-of-the-art engineering through an extensive, rigorous listening process using six different sound systems to deliver peak musical experiences.
As a result, the amplifiers glow with innovation. For example, the output stages of the larger Point 8 amplifiers bias more deeply into the Class-A operating region. Their larger push-pull Class-A operating envelopes deliver low distortion and additional loudspeaker control at ordinary listening levels. And higher power MOSFETs, many more than usual, increase the amplifiers’ Class-A operation while running at fractions of their stated specs to enhance both performance and reliability.
Still not content, we uniquely molded each model’s front end to the specifics of its output stage so that the nine amplifiers’ front ends vary in size, voltage, bias current, dissipation, and single-ended vs. push-pull bias distribution. The directly coupled front ends, which house the input and voltage gain stages, maximize each model‘s output stage performance, while imparting to each model its own subtle and unique sonic signature.
There’s more — including larger power supplies, more storage capacitance, more precise reference voltages, and new, larger heat sinks — but suffice it to say that with the Point 8 Series, we move beyond cookie-cutter circuits.作者: 阿明 时间: 2014-3-27 22:08
别整成中文，反而看晕了作者: 去污粉 时间: 2015-2-2 08:40
体重较xa.5系列大幅增加作者: 吴川李董 时间: 2015-3-5 15:29
160.8和200.8现在什么价格？作者: 直言不讳 时间: 2015-3-5 18:10
频繁换款，不知是厂家的意思还是代理商的意思，如果是前者，代理商够累的作者: 锦绣松湖 时间: 2015-3-14 11:45
行货上市了吗？
