情境
A recording studio needs to split a stereo line-level signal to two pairs of powered monitors without creating ground-loop hum. Passive transformer isolation keeps each output galvanically separated.
這張圖裡有什麼
看懂背後的決策。
01
Use parallel transformer primaries on each input channel to split the signal after the source, not resistive Y-splitting.
02
Add a 10k load resistor across each transformer secondary to emulate monitor input impedance and keep outputs stable.
03
Keep output returns floating (not tied to chassis ground) to preserve galvanic isolation.
Reuse when designing passive audio distribution for balanced or unbalanced line-level signals where ground loops between monitor pairs are a risk.