@labpro
Ok, now I’m really curious. I’m going to borrow my friends Auditorium 23 “T2”
Thats a great idea. It will give you an indication of whether the mismatch is having a significant affect or not.
By the way, I have the DIN phono cable AND the T1 SUT both grounded to the phono preamp.
Thats correct for the Homage.
For the SUT to phono stage, you don't need a dedicated phono cable with the additional earth wire.
You can run a single wire from the Homage earth socket to the phono stage separately. If you use the Auditorium23 cables thats how they wire it.
The main advantage of dedicated phono cables are
- they are designed for small signal and may have superior shielding
- usually have the additional earth wire
- ideally low capacitance ( which is desirable for your SUT to phono connection ).
If you run a separate earth wire from the homage earth socket to the phono stage all you need are well shielded, low capacitance cables, and short as possible.