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美国Phase Linear古董金封管纯后级
美国Phase Linear古董金封管纯后级，JENSEN的近亲 。Phase Linear——也许很多朋友都会感到陌生，那么说到它的设计者Bob Carver ，相信很多老烧朋友就知道了——Phase Linear是Bob Carver 在1970年所创造设计出来的独立品牌。 說Bob Caver 是一代音乐宗师在音乐圈內会反对的人大概也不多，因为他的作品太经典了。
在其伙伴史蒂夫.约翰斯顿和Jack Goodfellow帮助下，Bob Carver于1970年设计出了每声道350瓦特的700后级, 随后每声道200瓦特的成熟作品400后级也诞生了，并且迅速成为了录音室，发烧友，爵士乐队和摇滚乐队使用的参考放大器 。公司在1982年公司出售给了Jensen。 Jensen在那年12月宣布关闭Lynnwood工厂，并且生产地搬到得克萨斯。 由于Jensen的介入和买断，使得Phase Linear整个品牌是非常短命的，但遗留下来的作品个个经典。 其实机器的线路与设计理念一直被Jensen所参考设计乃至copy，至今那么多年仍然如此。
经查证国外资料，DRS 400是一款纯后级功率放大器， 它有二路电源：低路轨是50瓦特，而高路轨是200瓦特。 经过我的试机，机器应该是200瓦特的，机器的推力强悍到惊人的地步，采用音源直接后级，后级直推音箱，我只开了1/6的音量就已将8寸落地箱推到爆棚，房间中充满了能量感。目前暂无发现它推不动的箱子，基本上我可以 说这个机器家用是可以匹配任何音箱的 机器属于比较古董的机型，很多发烧古董元件，不过完全不用担心机器寿命问题，因为机器不存在老化，机器正在状态中，尽管放心大胆的使用 机器声音非常好，推动力惊人，低频能量暗涌相当丰富，而且线条清晰明朗，纵使在重播录音动态范围特别庞大、瞬变异常惊人的软件是亦可以轻松应付。不光低音扎实，机器还拥有纤细而干净的高音，在听大型合唱时对人声的定位相当准确，中音细腻富有质感
如QUAD一样，机器灵敏度估计挺高，建议搭配素质好点的音源及前级，那些有底噪的前级及不要用了。
还是来上点实物图片吧，机壳是全金属的，厚实稳重，整个外壳没有任何变形，略有轻微锈迹 侧着看 Phase Linear商标 完整的型号 电源按钮及指示灯 背面是这样的，和面板一样，很简洁 音频输入端子及接线端子，功率输出也是A/B组的，可以接两对箱子切换对比着听 至于这个图片，大家一看到LYNNWOOD，大家就知道我上面阐述的Phase Linear历史所言非虚了，全部有证可考的，不过这台机器也很有可能由JENSEN生产，不管是Phase Linear还是JENSEN，都是顶级音响厂家， 再看看这个，大家能确定Phase Linear与JENSEN的关系了吧 再看看内部，大型方牛，全金封管放大，看着线路板不是很大，其实不是那么回事，它只是不像现在的机器那样把板子做的老大、分的老开而已 换角度 再换角度 再来个角度看看 最后一个角度 这牛非常好，也很大，扎实的很 变压器标签上的参数，从纸上看机器是120V的，但其实机器完全可工作与220V，应该是那种通杀型变压器，很有可能国外资料所介绍的低电轨、高电轨就是120V和220V的意思，当然，咱们中国电压是220V的，所以120V对于我们多余，我自己也没去试过120V，220V用着很好 这里请煮煮饭好好琢磨一下！免得再弄错了！
这一块是电源及保护板 滤波水塘阵列 继电器 这是机器的放大板，板子上大把的古董发烧元件 放大一点看 摩托罗拉金封管，这两个应该是推动管，推动也用金封管 功率放大管，也全是摩托罗拉管，每声道4只管，两个声道8跟管，原装配对 特写 特写 这有英文原版资料 Phase Linear was founded by Bob Carver in 1970. He had grown up in Washington state, and had received Bachelor's and Master's degrees in physics after attending the university there. A brilliant and iconoclastic engineer, Bob Carver was also a lover of music, and had his own opinions regarding audio amplification. He had tinkered with amplifier designs all through college and was constantly prototyping his designs. Legend has it one amplifier he designed became known as the "earthquake amp" for its tremendous power. Carver believed he could manufacture this amp. Like most pioneering entrepreneurs, Carver was able to put together a team of financial backers and engineering associates to realize his dream. With the help of Carver's partners Steve Johnston and Jack Goodfellow, Phase Linear was launched in 1970 in a small building at 405 Howell Way in Edmonds, Washington. The first component to be manufactured was the model 700 power amplifier, with 350 watts per channel. It turned the audio world on its ear, and it quickly became a reference amplifier used by recording studios, jazz and rock bands and discriminating--and power hungry--audiophiles. The model 400 power amplifier, with 200 watts per channel, and the famous 4000 pre-amplifier followed. Demand for Phase Linear components grew dramatically as the company's reputation grew around the world. In August 1973 the 700 B was introduced In 1974, the company moved into a new building on 48th Avenue West in Lynnwood, Washington. . Several years later, however, Carver felt the urge to change direction. He believed the best way to do this was to leave Phase Linear in 1977 and launch a new company. Carver Corporation was founded in 1978. A.P. Van Meter joined Phase Linear in 1974, bringing with him his design experience working at Macintosh and University Sound. When Carver left Phase Linear in 1977, Van Meter became the Chief Design Engineer and the Engineering Manager. Under his direction the Series II models were designed and built, and introduced in 1978. Phase Linear was purchased by Pioneer Electronics Corporation in 1979. Pioneer choose to expand the Phase Linear line of components, adding a turntable, cassette deck, equalizers and new speaker designs. Pioneer then sold Phase Linear to Jensen in 1982. Jensen announced its decision to close the Lynnwood plant in December of that year, and production was moved to Texas. Jensen's involvement with the traditional market niche Phase Linear had carved out for itself was short-lived. The last Phase Linear home and professional stereo component equipment was manufactured in 1983. Jensen moved Phase Linear into auto sound, where it remains to this day。
DRS 400 Amplifier
Photo: Dan Johnson
The DRS 400 was a power amplifier but did not carry on the tradition of naming the amplifier after its total RMS rating. It had two rail power supplies; low rail was 50 watts and high rail was 200 watts. It's power bandwidth was 10-80kHtz. It had a list price of $695.00 ———————————————————————————————————————————— 70年代一款老美的相位传真高级极品前级，晶体管机，插件电路板，从设计、用料都属发烧级别。
煮煮再搞定这台前级吧————————————[s:97] [s:97] [s:97] [s:97]
[ 本帖最后由 叶荣玉 于 2009-7-25 16:29 编辑 ] | 
人老是自然规律。等那些老的烧友仙去，你也会变老了的。当你老了的时候你会知道，在对声音的整体领会中，並不是能听到更高频率，就等于会听音乐。总不会认为儿童比你更会理解音乐吧？而且这样不着边际的比较，什么也说明不了吗，这就像说调查过某二个收入相差几十倍的人，证明收入
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发表于 2009-7-24 15:47
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楼主
发表于 2009-7-24 15:53
