What power stages?

So I’ve got a problemo…. I got my 5 channel Kenwood wrong with Power ansesprochen and a short fabricated…. 1. had that ever before by which of you? Since a channel (front right) doesn’t work anymore…. can you fix that yet? 2. if not, how are these power levels: 2ch as 1ch. mono = crunch BlackMaxx MXB-2250 (power on 4 ohms brimmed 1 x 1000 watts ) 4ch = Hifonics Nemesis NX880 (power on 4 ohm 4 x 110 watts) or = curnch BlackMaxx MXB-4175 (power on 4 ohm 4 x 175 watts)www.hifoni cs.de are the sine, RMS or Max dates? has the Crunch 4ch. also sounded a good one and doesn’t just cause a crash? Hifonics is naturally good as far as I have heard that… or are there better combinations that aren’t over 600 eus? PS. finally wants to use my bass (zZ 100W from amp to 250W RMS bass… rumbles well but there’s still something) unfortunately no one can help me in the audio forum