The McCormack 0.5 has a very conservative rating of 100 watts per channel, sounds much more powerful. I have had other power amps rated at 200 watts per channel that can't keep up with the 0.5. This amp has unlimited power reserves & I have yet to clip mine. By the way, I own the DNA 0.5 Rev A, offers a world class sound and easily beats most everything I have heard before it. Your above speakers at their efficientcy of 91 db would produce concert hall levels with the 0.5.
McCormack DNA .5? Do I need more power?
Hi. I have been thinking about picking up a used McCormack DNA 0.5, which I may upgrade in the future. Will it be powerful enough at only 100w? I am currently using a B&K Reference 4420 (225wpc) and while it sounds good, I am sure I will get better sound out of the McCormack, especially once upgraded. My speakers are 91db, pretty efficient, but they have a big 10" driver along with a 6.5" driver, 1" driver, and tweeter, so I don't want to under-power them. Manufacturer recommends no less than 30w. I don't play real loud (no higher than 10 o'clock, which is plenty), but I don't want the lows to be muddled by a lack of power. What do you think?