Unitiqute - Hum on preamp out sockets

Posted by: Devon-Dave on 05 May 2016

Currently using a Unitiqute preamp output to feed some B&O Beolab 9 active speakers and apart from a low level hum/buzz the sound is absolutely subline. Suspected an earth hum loop but discounted this by temporarily disconnecting the earth terminal on the Uniti ( I know, don't try this at home). Has anyone else found a problem matching the preamp output sockets to non Naim gear or other equipment other than a power amp (with 18k input impedance).

Posted on: 05 May 2016 by analogmusic

There is no need to disconnect the earth terminal !

this is very dangerous!

all you need to do is

reattach the earth terminal

set the ground switch on the uniti to floating

this is there in the manual

Posted on: 06 May 2016 by Devon-Dave

Tried moving the ground switch to floating before temporarily disconnecting the earth, both to no avail. Also tried all the obvious things like powering all the system from one socket and checking grounding on cables. Also tried using the Uniti on wireless connection only in case an earth ground loop was coming via the Ethernet cable as the router is remote and runs off a different socket. .