Thanks all. They were bought 2016, as this is when i bought the amps. I’ll do some more digging.

Hi all I have a pair of A40 power amps that have been sitting a couple of years around since before some small members of the family arrived and unfortunately I need to make some space. Before I explore eBay for these I wondered if someone could help me with some speaker cable identification as I re...

I ought to add that I am presuming you are using their passive pre not the valve one. Yup. Ok, thanks very much, I will try the earthing tomorrow. Might be the system needs a mains earth. Take a lead from the Icon Audio connected to the neg side of a phono plug and plugged in a spare (any) socket o...

Dr Bunsen Honeydew wrote:I ought to add that I am presuming you are using their passive pre not the valve one.

Yup. Ok, thanks very much, I will try the earthing tomorrow.

Hi there. So I have been lurking around these pages for some time, and am the proud owner of a pair of NVA A40’s and various lengths of cable. I have enjoyed reading various discussions over the time, yet here I wonder if someone may be able to assist me in a humming problem that I have acquired. I’...