Are marantz power amps any good?


I want to step up to a power amp and was wondering g if the marantz power amps are worth it? I love the sound of their avr's , but the power amps seem low on specs , is there more too it than wattage ? Do they provide tons of current , and if so what makes a 300 watt per channel amp better than this one ?
nesto719
Well looking at the specs and reading a couple reviews they sound like nice speakers and fairly easy to drive 90db sensitivity and a nominal 4ohm impedance. So lots of options out there to choose from, both tube or ss,  do you have a budget in mind?
I definitely don’t want to over buy , I prefer a warm rich sound with plenty of detail still , and was told to buy an older b&k 200. , lexicon lx model . I have tried emotiva and felt it was too bright , which was a bummer because they are priced really nice . I really prefer something newer unless those amps suggested to me are the real deal . Marantz 7702mkii or 8802 will be the pre amp because I was told they have a great two Channel analog system , plus I can still get all the benefits of muti channel audio too . I really love the looks of tubes , but have no idea where to go . Parasound and anthem stuff looks good but was told they are not entirely on the warmest side .