Hi Martin. Welcome to AOS.
You can certainly broaden your knowledge here. Members have experience of a vast amount of varying gear. If you have questions, just find the right area and ask away.
If you haven't already, check out the Techiepedia sub forum in the Analogue Arts section. Just about every Techie upgrade that is possible has been listed there.
Enjoy the forum,
Main system: MMs/ADCs/Low output MC's/One rare Japanese SUT/One scarce British phono stage/various tonearms/hefty Japanese DD TT and hefty Japanese BD TT and small British BD TT. 4 CD players/2 jitter buster/2 DACs/Valve buffer. TVC stepped attenuator or valve pre-amp or solid state pre-amp. Current dumping power-amp or either of two Class A SS power-amp or Class A EL34 valve monos or big Japanese (part Class A) integrated. Big dual concentric speakers/Smaller dual concentric speakers/Two way British compacts and full range speakers, amongst others. And too much more to list!