Running a high current amp capable of doubling output from 8 to 4 ohms made a big difference with my larger Ohm Walsh speakers.
This amp replaced another amp that had 3X the power output but not as much current, and only increased power delivered marginally in comparison from 8 to 4 ohms.
This change resulted in a much tighter, more transparent and detailed delivery with a larger sound stage at typical listening volumes.
I've read that a high current amp (perhaps also with higher damping factor) can make a big difference as well with many other larger or more esoteric design speaker systems that similarly may produce a more difficult load for an amplifier to drive, like elecrostats, maggies, etc.
This amp replaced another amp that had 3X the power output but not as much current, and only increased power delivered marginally in comparison from 8 to 4 ohms.
This change resulted in a much tighter, more transparent and detailed delivery with a larger sound stage at typical listening volumes.
I've read that a high current amp (perhaps also with higher damping factor) can make a big difference as well with many other larger or more esoteric design speaker systems that similarly may produce a more difficult load for an amplifier to drive, like elecrostats, maggies, etc.