I have Bergmann Sindre with Goldfinger Statement
CH L1 and P1 with X1 with 2 boards for L1 and X1
Speaker italian company Montagna,3 way with magnet in Maxalco with 98 db efficiency.
You can see old website with old model www.hiend.it,now new model is bigger
Two friend of mine have Wilson Alexandria and TAD R1 and are selling to buy this speaker.
Regards
If you use in mono,you can use in mono passive bi amp,
so you can use one channel for bass and other channel for mid/high.
On the channel for bass you can put some feedback to control better the woofer and in the channel of mid/high you use without feedback so the sound is better,
You can also increase or decrease the gain from 0.5 db to 12 db for each channel.
I started with C1 and A1 in mono,then i bought L1 and sound is more natural and liquid,then i bought X1,then P1 and M1.
So,C1 is better with L1 but also M1 is better than A1,so i dont know how to suggest you.
But i think I prefer M1 with C1,then in future you can buy L1 so you finish the system.
So M1 is definitive amp and in future you dont need to sell A1 loosing money to buy M1
I suggest the last step to buy X1 with 2 board for L1 and C1.
So also if you can buy something every year you can increase slowly so you can be happy.
I bought all in 2 years.