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樓主 |
發表於 2024-3-23 15:52:01
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有地線的喇叭線～
有地線的喇叭線，地線我一直是夾在綜擴的機殼螺絲上
最近試了一下不接地線
聲音比較亮，比較活潑
接了地線聲音比較偏暗
這條地線是為了balanced output amplifiers 設計的、可以降低12dB的雜訊
但我不懂什麼是balanced output amplifiers
一般擴大機不都是+/-嗎？
問了專家之後才知道一般擴大機+是信號-是地
balanced output amplifiers跟全平衡前級一樣，+/-各負責半波
利用對絞線抗干擾才需要喇叭線接機殼地，降低噪音提升細節
LE-5 The Speaker Cable -- Six AWG; Quad multi-core construction; ready for either "shotgun" or "internal bi-wire」 application11; billet-cut direct gold-plated Laboratory Grade copper fittings, phenomenal dynamics, and sound quality that puts all others to shame make this the speaker cable of choice for systems that really do strive to duplicate the reality of the musical experience. Unquestionably and by far "the Best in the World", the LE-5 is also available in a model (LE-5B) specifically designed for balanced output amplifiers. This model features a special internal shielding network that, when used with balanced output amplifiers, acts like more than twenty interlocking coils, to trap current-induced noise between the 「Hot」 and 「Cold」 legs of the circuit and dump it to chassis ground. The result can be an improvement in signal- to-noise ratio12 of as much as 12dB, and the improvement in sonics and detail resolution can be simply amazing! (Note: LE-5B』s special construction functions by taking advantage of the fact that a balanced circuit has no true ground, but that, instead, each of the two amplifier output terminals acts as 「ground」 for the other. This is not the case with conventional (unbalanced output) amplifiers, which DO have a true ground, and will therefore derive no benefit from LE-5B』s special construction.) |
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樓主: KevinI3
發表於 2024-3-12 17:13:30
] 網頁上也直接說不懂原理，但聲音會有變化
