I have never experimented with biamping, yet. I have through my diy efforts proved to myself that mono blocks (one for each speaker) are better than a stereo amp sharing a single psu.
I have the parts to build four monoblocks so each driver in my 2 way speakers will get one all to its self.
What are your thoughts on this ? Expensive waste of time ? Depends on the speakers and amps in question ?
How does biamping sit with say NVA amps and fully doc modded speakers / cubes ?
I have always recommended passive bi-amping, but never recommend doing it with active crossovers, defeats the object. Many users passive bi-amping with nva. It is why the P50 and P90 have 3 sets of outputs.
I will be putting another pair or two of connectors on my preamp for this.
My system started out as Naim but has been significantly butchered over the years and is now completely Avondale apart from cases and sockets and speakers.
I will need to fit some phono instead of the stupid Din sockets that I have now. Then I can buy some lovely NVA interconnects
Much like what I have done. Two fully Avondale'd NAP140 monoblocks, each includes Avondale transformer, Minicap 6 PS board and NCC200 power amp boards. Works brilliantly with NVA P50 passive, SSC and LS6.
I did exactly as you have done by monoblocking two NAP140's, now fully Avondale.
But I have recently bought all the parts from LesW to build 4 monoblock voyager amps with new V1.4 NCC200, CAP6, Minicap, HCR200 reg board for front end, soft start, and output protection modules. Transformers are a mix of Canterbury windings 350VA for output stage and Avondale EI for the front end.
Needless to say I have a lot of work to do putting these things together and casing them up. I am sure it will all be worth it.
I visited Les in December to pick all this stuff up and he is winding down a little but not retiring. He is still very much enjoying what he does so I don't expect he will be retiring as such any time soon. Still dreaming up new products and helping the sheep to escape the Naim flock. He deserves a medal for that alone.