Imhififan:. I took your advice and unplugged the charger and holy cow what a difference. The noise floor must have dropped. The music became more dynamic, clear, holographic, and the soundstage opened up. And best of all this tweak was free. Thank you!
Isolation transformer for laptop charger?
Would using an isolation transformer on a MacBook Pro power supply (charger) help to block noise going back into the same circuit which feeds my other audio equipment? The USB output side of the same laptop goes into an ISO Regen with its own linear power supply which then feeds my DAC. I assume the MacBook charger is a SMPS which are known to be very noisy. I'm not an EE so hoping that this isn't a ridiculous question.
- ...
- 10 posts total
@jc4659 Glad my suggestion helped. if it makes a difference then all I need to do is remember to disconnect the charger when listening to digital files, and more importantly, remember to reconnect it when I’m done!Maybe you can add a current sensing relay/switch to your system to automatically connect/disconnect the charger. http://www.ebay.com/bhp/current-sensing-relay Happy holidays |
- 10 posts total