haunyack;205346 Wrote: > 'scuse the rookie question, but I'm not sure what this term means. > > > > .
"Roll Off" typically refers to the fact that at the extremes of frequencies, the volume coming from the speakers will gradually reduce. So, if a speaker is quoted as being "50Hz - 20kHz, +/-3db", then the volume of a 50Hz tone is 3db lower than the typical flat response of the speaker, and as you go lower, 45Hz, 40Hz etc. the volume of these frequencies will become lower still. Same applies at the top end - the higher you go the quieter the frequencies will become. "Roll Off" means this happens gradually, rather than it being a vertical step. If you look at a frequency/response graph, it would be a gradual slope up to the quoted minimum response for your speaker, then a largely flat (hopefully!) response up to the highest rating for your speaker, then again a gradual decline thereafter. Can't answer you second point - some speakers are better able to handle higher frequencies than others. Lower bit rates won't help, but are unlikely to be the total answer. -- gw43 ------------------------------------------------------------------------ gw43's Profile: http://forums.slimdevices.com/member.php?userid=11327 View this thread: http://forums.slimdevices.com/showthread.php?t=35686 _______________________________________________ audiophiles mailing list [email protected] http://lists.slimdevices.com/lists/listinfo/audiophiles
