I'll second the TDK GX 35/90B. I have had 2 Teac X7R decks in the system for the last 20 years or so and of the 800+ reels in the library, the best sonically are the TDK. They have also held up the best over the years for shedding, squealing, and other sundry problems.
The question I have is whether they're still available. I stopped adding to the R2R side of the library ~7 years ago and haven't looked for new tape in quite a while.
The question I have is whether they're still available. I stopped adding to the R2R side of the library ~7 years ago and haven't looked for new tape in quite a while.