Hi Ledoux, I am now using three different phono stages all of which are full function preamplifiers. These include atma-sphere MP1, Manley Steelhead, and Raul‘s phonolinepreamp. The first is all tubes. The second is a hybrid of transistors and tubes. And of course Raul‘s phonolinepreamp is all solid state. Truth be told I prefer all 3 of these vs the Lumi. I sold the luminescence way back when I first purchased the MP1. The reason I regret selling the luminescence is purely related to my high regard for it as a classic piece of audio design. But you can’t keep everything.
if you really want to insert a passive line stage in place of the line level output stage of the luminescence, you need to make sure in advance that you will have enough gain and that the impedance matching between your luminescence and the passive line stage and between the passive line stage and your amplifier are acceptable. I would guess that the line stage of the luminescence adds 15 to 20 DB of gain to the signal it receives from the phono section. Can you live without that?
if you really want to insert a passive line stage in place of the line level output stage of the luminescence, you need to make sure in advance that you will have enough gain and that the impedance matching between your luminescence and the passive line stage and between the passive line stage and your amplifier are acceptable. I would guess that the line stage of the luminescence adds 15 to 20 DB of gain to the signal it receives from the phono section. Can you live without that?