Stereo amplifier vs dual-mono

[ogs]

@yabaVR I guess parts of the advantages of dual-mono Devialet amps is that both sides of a speaker is driven by an active amplifier stage as opposed to a stereo amp where minus of the speaker is simply connected to common ground.

I have experimented a little with this. My speakers have first order crossovers and the negative side of the voice coil of both units are connected directly to the minus terminal of the cabinet with no components in between (this is not unusual even for higher order crossovers). By reversing the speaker leads on both speakers and enable phase reversal on the amplifier I have control of absolute phase, but now the active amp stage is seeing the voice coils directly instead of through filter components.

There is an improvement in the sound and it is easy to try with expert amps. Improvement is probably not in class with your 'direct-to-terminal' mod (I have not tried this yet unfortunately), but better than removing plastic/brass nuts on the amp.
My speakers are already fairly DIY so I've re-built crossovers with components now sitting on the minus of drive units. I can then run speaker cables the normal way. Practical as the amplifier does not remember your phase setting across restarts.
Try it and see what you think