HI! I am about to record on reel to reel tape and hear some occasional "pop" and "hiss" noises. They appear mostly on the left channel and I use to hear them a bit on low passages in the music and between tracks. My machine is a Revox B77 MK2 and the tapes are brand new RMG LPR 35 tapes. May this be solved by demagnetizing the heads? I have never used a head demagnetizer before, but I clean regularly so the heads are not dirty. I may obtain a TDK head eraser HD-11. Is that any good for my use Hope to hear from any reel to reel enthusiasts. All the best Jan