Adding an Accuphase A-46

Well, read up on the A-46. It's more powerful and has more current delivery. More capacitance and bigger transformer and higher damping factor as well. Also, it can be bridged for even more power.Plus, it goes to 360 wpc into 1 ohm.

So therefore, I would say adding the A-46 is a good idea if you can afford it. It would go great with the E-560 as a preamp. The E-560 as a preamp is close to the C-2410. I got my sights set on Accuphase (A-46 and C-2420)myself. Great build quality, made in Japan, and excellent sound. Very hard to dislike.

I have no direct experience with the particular gear referenced. When you double the power of an amplifier, you only get a 3dB increase in loudness. Generally, this is considered to be the lowest significant perception in sound increase most people can discern. So unless you are on the razor's edge of what is needed, it is unlikely to make a significant difference, since this will yield only a 50 percent increase in power.

It will make a difference because it will handle transients better.