So, he is correct. There is no tape loop. There is limited use for making recordings with magnetic tape. I do very occasionally for specialized jobs. However I get less and less call for tape work, except for archiving to digital. That does not require a tape loop. What does require a tape loop on off board processors, like dbx and Dolby units.
So I do have tape loops. My analog end has three Quad preamps. The Quad 22 (tube) and the Quad 34 has a tape loop and the Quad 44 has two tape loops.
You can see at the analog end the tree preamps, one for each of the turntables, plus reel to reel machines a couple of cassette decks and ofboard dbx, 1 and 2 code encode, and processors and for Dolby A and B off board. The dbx 2 unit can also decode both tape and disc. Playing a dbx LP also requires a tape loop.
The bottom line is that good vintage analog gear still has essential uses, and the good stuff not only maintains its market value, but it continues to increase it, and in recent years quite fast.
So, if the OP wants a tape loop he is going to need a quality vintage preamp between his tape units and the P6.
