sandra, before we bunch your skivvies, are we talking about (aboot in canadian) the same speakers? if so, i would suspect that your speakers "went south; belly up; landfill; kaput." it can fool you by seeming okay at lower volume levels. confirm it by substituting a known good pair of speakers. if that solved your problem then watch your bundestpost for mien bill. if it doesn't solve it, just take your receipts to wal-mart for a full refund.