did alot of that 5 years ago.. well trial and error you gotta find a decent spot where the mic is nearer to the vocal speakers, followed by guitars then drums (Not near to the cymbals. facing more towards the kick/snare) and somehow the bass would be picked up regardless where I placed the mic(or maybe the band's bassist I was recordin' jammin' for , loved to blast the bass amp. thats why) and most important of all, the recording volume, must not overload which explains your "zaa zaa" sound. You should always record it below the "clipping" (overload) range then amplify the volume in software. don't record it too soft and then amplify it big time in software that'll only encourage big time hiss/noise etc.
P.S : if even putting the mic in the corner of the room/floor or having a guitar bag blocking the direct harsh loud sound being recorded in doesn't even help, means your band is too loud hehehe.
anyway I was using an old school Sharp MD (the bulky one) to a 1/4 jack > 1/8 jack adapter to a cheapo dynamic mic (which you can buy @ cash converters like $8) with an XLR > 1/4 jack cable.
have fun and hope this helps. if the uncle/owner starts kickin' ya out cos you're trying to improve by learning your mistakes through jammin' recording, don't bother with his insecurities and go jam somewhere else. loadsa jammin' studios out there now like a happy meal 101 catalog.
