HIFIDIY论坛-名机 hafler DH-220功放 +电路图和pcb 图 场管功 …
网页2013年12月16日 · The Hafler Company makes audio products primarily for the professional market, where the brand is valued for its excellent sound and reliability. Hafler's name is permanently etched into the history of audio―along with those of Saul Marantz, Avery Fisher, and a handful of other pioneers who built the industry in the mid-20th century.
David Hafler - Wikipedia
网页David Hafler (February 7, 1919 – May 25, 2003) was an American audio engineer. He was best known for his work on an improved version of the Williamson amplifier using the ultra-linear circuit of Alan Blumlein.
Hafler DH-120 (Gear & Review) - Explorations in Audio
网页2020年5月26日 · The Hafler DH 120 is a bridgeable 60 watts per channel transistor amplifier. It is of sturdy build quality with two amplifier boards hooked up to a single transformer. The 4 Hitachi MOSFET transistors per channel are mounted on two large heat sinks that constitute the sides of the amplifier.
Hafler DH-220 Stereo Power Amplifier Kit Manual - HiFi Engine
网页2017年1月1日 · Specifications. Power output: 115 watts per channel into 8Ω (stereo) Frequency response: 6Hz to 60kHz. Total harmonic distortion: 0.02%. Damping factor: 60. Input sensitivity: 1.55V. Signal to noise ratio: 100dB. Semiconductors: 26 x transistors, 8 x MOSfet, 29 x diodes, 4 x zener diodes, 1 x diode bridge. Dimensions: 5-1/8 x …
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HIFIDIY论坛-有玩Hafler(哈佛）PRO5000功放的请进 - Powered by …
网页2022年1月20日 · 玩过哈佛PRO5000功放的朋友都知道，哈佛5000机子的整体素质非常不错的，输入级采用场效应管做差分，末级是日立的K176 J56场效应管做输出，而且采用高偏流偏置，声音相当细腻，而分解力也非常高。. 但使用中也发现一些设计上的漏洞，就是机器散 …
Hafler PH60 Phonostage - The Absolute Sound
网页2017年1月25日 · The PH60 faithfully carries on the Hafler tradition of sonic value. Judged within its entry-level category, it delivered the musical goods, and seemed to keep improving the more I listened. Based on my experiences, the PH60 represents a solid choice for vinyl lovers in the market for a smartly engineered, well-made, and affordable phonostage.
Hafler Iris preamplifier - Stereophile.com
网页2008年6月5日 · The Iris preamplifier is undoubtedly a Hafler product; with its discrete, charcoal exterior, it could hardly be otherwise. Yet it was designed from the start both to be fully remote-controllable and to be the basis of a complete remote-control system.
Hafler XL-280 power amplifier - Stereophile.com
网页2010年3月3日 · A version of the venerable null test—which Hafler has dubbed the Straight-Wire Differential Test—seemed best to meet this requirement (footnote 1). The XL-280—dubbed the Excelinear amplifier (for "Excels in Linearity")—is, according to Hafler, the first amplifier ever designed to meet the extremely stringent demands of the SWDT, which ...
You Can DIY! The DH-220C MOSFET Power Amplifier - audioXpress
网页2021年12月8日 · This article offers the first serving of an amazing DIY project from amplifier experts Bob Cordell and Rick Savas with an upgrade for the legendary Hafler DH-220 lateral MOSFET power amplifier.
Hafler Transnova 9500 power amplifier | Stereophile.com
网页2016年8月4日 · The 9500 has a beefy power supply, its heavy-duty transformer having separate secondary windings for each channel's high-voltage supply (with a filter capacitance of 20,000µF per rail per channel, footnote 1), and a third set of windings for the regulated low-voltage supply feeding the input and driver stages.
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