I currently have 252/300/ATC SCM20.
I have experience the benefit of bi-wiring a speaker, but with Naim it is not recommended.
I wonder if anyone tried to bi-amp to benefit from the HF/LP isolation/separation with Naim NAPs?
The other reason of this thought is to better control the SCM20 due to it’s power hungry.
Any thoughts or recommendations?
If you mean active driving of your existing speakers you’ll need an active crossover (Snaxo with appropriate settings, or a third party one). Passive biamping is of uncertain benefit and probably only worth trying if you already have a spare second power amp. Then there is ATC’s own active - where you know the amps are capable…
There have been several threads on the subject - use the search tool. Some people have reported a benefit, though I only recall one person saying it was a significant improvement. It likely will depend a lot on the speakers, as well as on the amps (and your ears).
Passive will never be as good as active bi-amping (or tri- with 3-way speakers), as you still have the speaker crossover in the circuit and not direct control of the voice coil as you have with active bi-amping. As I suggested in an earlier post, it is questionable as to whether sensible to buy another amp just to do it, but if you have a spare one already there is nothing to lose trying other than the need for extra cables.
Given the problems you raise in your “powerline” thread, the last thing to be doing is adding an extra power amp to your setup, I’d have thought. Best to concentrate on solving the issues with your current system, first.
The 300 is more than adequate to drive your speakers in your rather small room unless you’re into head-banging sound levels. At least one person on the forum prefers passive SCM40s driven by a 300 to the active version, which has over 240 wpc.