Honestly the best bang for the buck would be to buy decent power amp. Then find good cheap old speakers from Craigslist or something like that. Speakers often o

Honestly the best bang for the buck would be to buy decent power amp. Then find good cheap old speakers from Craigslist or something like that. Speakers often outlast amps, which brings the price down. I just had to give away perfectly good three way pioneer speakers for free. Speakers do wear, but not linearly. They are first like new until they are completely broken. When you have speakers and amp, room acoustics is the next thing. Start with curtains. Clap your hands, if you hear disturbing echo, add something soft. 200e for amp, 60e for two used speakers and 40 for nice curtains. 300e total and you might have better audio than someone who spent 1000e for surround home theater.