Flac is lossless audio, identical to CD's. MP's are lossy so lower quality.
You can't convert mp3's to flac, it'll just sound worse. Your system should sound better than PC speakers. Get the amp checked over, usual things like both channels working, check potentimeters, fets, electrical safety etc.
You won't need a sub, like I said I have B&W 601 and if you're close to them (PC use) you'll find the bass more than enough. Buy a subwoofer last. In a 4m x 3.5m room, Hi-Fi setup I don't need a subwoofer either (another pair of standmounts)
After the speakers, compare your Rotel to new amp, again in the £200-£250 bracket. When demoing speakers ask for them to use your Rotel and a new amp, so you get a idea what the Rotel sounds like, compared to others.
If you buy £200-£250 second hand or ex-demo speakers you'll get a good pair.
You can't convert mp3's to flac, it'll just sound worse. Your system should sound better than PC speakers. Get the amp checked over, usual things like both channels working, check potentimeters, fets, electrical safety etc.
You won't need a sub, like I said I have B&W 601 and if you're close to them (PC use) you'll find the bass more than enough. Buy a subwoofer last. In a 4m x 3.5m room, Hi-Fi setup I don't need a subwoofer either (another pair of standmounts)
After the speakers, compare your Rotel to new amp, again in the £200-£250 bracket. When demoing speakers ask for them to use your Rotel and a new amp, so you get a idea what the Rotel sounds like, compared to others.
If you buy £200-£250 second hand or ex-demo speakers you'll get a good pair.