the actual ohm value of speakers is measured at 1 set frequency, as music is over the entire frequency usually the ohms value varies considerably, so as long as they match it doesn't matter, what matters for speakers is its sensitivity at 1 meter, the closer the number to 100 the better, power level is not so important as long as it exceeds the amps level. 1 thing people fail to understand is most average listening levels are about 0.1watt and that 1watt is quite loud ( that's real power level not rms ) so to sum up 4ohm =slightly louder capability than 8ohm- 8 is slightly louder than 16ohm - power level is not that important as long as it's not lower than the amps - and speaker sensitivity figure in dB as high as possible is important - as 98dB sensitivity is louder than 88dB for a given value

buy it now.