Be careful: the Jolida "loop" is exactly that - a tap off of the passive selector's outputs. I have a heavily modified "second system" 502 with the tape loop and found it can degrade sound quality with long tape line runs due to signal losses. BTW, do yourself a big favor and upgrade the stock input jacks which are, quite frankly, garbage. Upgrading the paltry OEM input wires will bring some further improvements as well. Toss the crummy Chinese small signal tubes while you're at it. Nice amp that goes a long way with a few judicious upgrades.
Monitoring a tube amp Jolida or ASL
I am considering an integrated tube amp (i.e. Jolida 302 or Antique Sound Labs AQ1003. One of the problems I am trying to overcome is that my better half wants the ability to make tapes from other sources (i.e. CD). These integrateds only have 'Heavy duty Gold Plate 5 way speaker posts'. I've already overcome the hurdle of using a Niles switcher for more than one non-audio input into the system. Does anyone have a recommended way to set this up?