I recently found a Kenwood cassette deck and amp (KA-80) in my nearly 20 years old stuff in immaculate condition. I have had the amp serviced. I would like to establish what type of speakers can be bought to match this amp. In terms of specs, the manual says, 48 watts per channel mim RMS both channels driven at 6 ohms from 20 hz to 20000 hz with no more than 0.02% total harmonic distortion. This is all greek to me. All I need to know what type of speakers will be suitable. Can the latest set of 5 speakers be used with this amp?