I have a NAD 7155 Stereo receiver and have acquired a pair of B&O Beolab 6000 active speakers. I was advised I could use both together successfully.
I was advised that I could use the Beolab speakers with the NAD amp and all the normal functions of the amp (eg. volume, tone, balance, etc) would be available. I was to remove the two metal U-links from the pre-out sockets on the rear of the amp and save these for future use. Then, select 'LINE' on both speakers and connect them using an RCA cable to the NAD's preamp sockets, L and R.
I have two speaker cables behind the skirting boards with out connectors on the end, so I have spliced some RCAs onto the end of them in a DIY kind of way! The RCA Insulated wire connected to the striped part of the speaker cable, and uninsulated RCA wire to unstriped speaker cable - at both ends (of course).
[View:https://pbs.twimg.com/media/DJCSouMWsAABZlD.jpg:large:600:0]
I've attached both speakers to each other using a power link cable, and then each speaker individually into the NAD preamp sockets, one cable into the Left and the other into the Right. When the NAD is off, the two speakers buzz incredibly loudly if they are both on at the wall. When the NAD is on, the buzz lowers, but is still significant. I can hear the TV audio very clearly, but this drone over the top and when on mute is too much.
Has anyone any bright ideas as to what the problem is? Are the speakers themselves faulty, have I wired them incorrectly? My existing speaker cables are quite thick and these RCAs are rather thin. Is that the problem?
Any help and advice would be gratefully received.
Thank you