參考吓：
1.
2.
以上RCA不可以濾除Ground Loop Hum，反之，XLR或許有幫助。 ...
Big_McIn 發表於 2010-11-4 15:04 http://www.post76.com/discuss/images/common/back.gif
嗯..又學到野...{:1_326:}
你兩set 線材做唔倒AB比較喎！
如果你用呢個DIY就可以將你條XLR變做RCA
當然線材係一樣啦，咁就好似你Case個接法
假平衡=XLR to RCA with shorted -ve to ground
真平衡=全平衡如2.) Dual Differential =>平衡放大
Not Full Balance = XLR轉 RCA single-end signal by tranformer or board circuit ...etc , 咁樣應該係Noise方面有優勢 => 平衡傳輸
Sound System Interconnection
我未搵倒另一篇關於Balance Interconnect既文章
佢好似都有提過Twisted Pair同Buffer咁上下！
A simple modification to equipment with unbalanced outputs can
convert it to have true balanced outputs. Get (or trace the circuit to
make) a schematic of the equipment’s output circuitry. Depending
on available panel space, the new 3-conductor output connector can
be added or used to replace the existing connector. This
modification uses the existing unbalanced output as the + output
and adds an impedance matched passive network to ground for the
! output.
INTERCONNECTION OF BALANCED AND UNBALANCED EQUIPMENT
Grounding and Shielding Audio Devices
Grounding and Shielding Audio Devices
以下只是吹水：
有個台做過Multi Channel Power Amp大比試，AV Pre 用天記一哥。
打擂臺計有
1. 天記 ...
Big_McIn 發表於 2010-11-4 14:41 http://www.post76.com/discuss/images/common/back.gif
我唔覺得呢班人有問題，雖然在技術上稱不到專業，但呢份熱誠唔係每個人都有，呢類比試只用作大家分享同參考， 都好過有些高手只吹數據，坐係到咩都唔去試，就話咩咩最好，如果要試到咁專業，現今各大小試演會大家都唔使去了...................！
我家下前後都係true balance, 不過都係用緊RCA
因為太貴XLR又買唔起, 平嘅又怕衰過家下用RCA{:1_263:}
不過有balance in out唔用個心硬係唔知點{:1_253:}
回復 78# chhanthony
chhanthony ching,
DIY cable 有無諗過呢?不過要好有心機整咁多條喎....
