原帖由 菜佬 于 2007-8-28 20:35 发表
哈。。。。好家伙呀，千丝万缕呀大哥
不错！以后就得挑战这种高难极限，谢大哥啦
顺问这牛是在哪有做的？
我下一步想法是要做平衡的啦
Yes it is true; Sonic Euphoria introduces its PLC (Passive Line Controller). This is not just another passive preamp, but a unique design using an autoformer attenuator. There are no resistors, potentiometers, or capacitors in the circuit at all. Our design approach is to use the simplest circuit with the highest quality parts. We believe this to be the true path to Audio Nirvana.
The sound is transparency redefined; all the clarity, detail, high and low extension, with a wonderful harmonic balance. The autoformer design maintains bass and dynamics where most resistors based passives will disappoint. The performance of this preamp is in the class of the very best made, yes even those cost no object $10,000 + units.
Design Philosophy
We believe the path to audio nirvana is by way of simplified circuitry and the use of high quality materials. Think in terms of each component can only take something away from the true audio signal. The goal is to minimize what each component takes from the original signal. This approach can be taken back through the actual process of recording the signal from when it was real music. If each component damages the signal in some way it would seem only obvious that the simplest practical circuit would be better.
Why is this unit so great?
Music is reproduced with a transparency that rivals a simple cable. If you listen closely you will notice that you seem to hear everything that could possibly be there and likely will hear some stuff never noticed in the past. Normally to get this level of detail and transparency you will get some edge, grain, brightness, or sibilance that can contribute to a fatiguing listening session. Generally passive preamps will avoid this fatigue. The PLC is able to deliver all of the music, detailed, clear, and transparent, with none of these negative effects of active electronics. The problem with passive preamps has been a loss of dynamics and bass. The PLC autoformer attenuator does not suffer these ill effects since it is capable of delivering more output than input. Current is the real muscle behind the signal that gives it strength for good dynamics and bass.
Specifications Attenuation: | 1.8 dB per full step | | Half Step Switch: | +0.9 dB | | Volume Positions: | 43 (24 full steps + 19 half steps) | | Inputs: | 4 RCA plus 2 XLR (for balanced) | | Outputs: | 3 total |
Options | Increase voltage gain | N/C | | Remote control (all units upgradeable) | $250 | | WBT Top Line RCA | $40/pair | | Black Diamond Racing Cones | $45/set of 3 |
Sonic Euphoria PLC
Single Ended: $1295 Fully Balanced: $1995 Sonic Euphoria is sold in the U.S. exclusively through http://www.soniceuphoria.com[s:97]
[ 本帖最后由 讲求人道 于 2007-8-29 01:05 编辑 ] | 
楼主: 菜佬
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狗仔卡
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发表于 2007-8-29 00:58
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![平衡输入2[1][1].jpg.thumb.jpg](https://att.jd-bbs.com/forum/day_070829/20070829_dcf731c0f401eba4632cQxqnyYjIUP4p.jpg "平衡输入2[1][1].jpg.thumb.jpg")
![平衡输入3[1][1].jpg.thumb.jpg](https://att.jd-bbs.com/forum/day_070829/20070829_dbae6c5ab78f1bf319b6pzNpMUS46Xyl.jpg "平衡输入3[1][1].jpg.thumb.jpg")
