Ive been using valve amps for quite a while but I have never had to re-tube one or anything. Just recently, my Laney VC30 has been giving out weird crackling and buzzing sounds, even when nothing is plugged into the input. Its strange because there doesn't seem to be any loss of tone or volume and it occurs at random times aswell. I have tried numerous power sockets in my home and different kettle leads but nothing is making a difference. The tubes in it at the moment are the stock ones which came with the amp (3x ECC83 and 4x EL84 i believe) Ive only had the amp for about 5 months and rarely have the volume more than 4. So is it my tubes or something else?
Thanks for any help!