In low-powered setup listening to dynamic funky music such as Stanley Clark or Grant Green, I found that speed isn't there. I expected that the driver should stop after the drum beat or the bass slap, but it didn't.
For the same price (+ a-bit extra) you pay for Marantz pm8004, you can get much more powerful Sansui G-9000 vintage receiver that compares to that little Marantz as BMW M-series vs. Mitsubishi Galant. Moreover, compared to this modern and cool Marantz that may go bad after just few years, Sansui is serviceable unit that will only go up the value and not down.