Club systems vary wildly. I usually provide my own gear, and it&#x27;s quite high end (JBL SRX700 series subs, and PRX 625 mains), and is more accurate than most home stereos, while also being dangerously loud. But, I can&#x27;t hear the difference between a ~200kbps mp3 and a FLAC through that system. I probably couldn&#x27;t consistently hear the difference on my headphones (also high end) or my studio monitors (again, quite high end), either.<p>That said, a 128kbps mp3 through a really loud system tends to sound harsh. It is definitely audible, even to untrained ears. But, anything above 192kbps, or so, is fine and any flaws that <i>might</i> be audible in an ideal listening environment are lost in the general noise of the club environment.