Your are right! My mistake. Still begs the question though - what is an appropriate flat response 16 Ohm 10" speaker?

I'm new to this forum so apologies if this is a bit basic. I have a Roland Jazz Chorus 60 from about 1979 (it is very much one of the earlier models without the bright switch or power amp inputs which appeared on the later models) and it has blown a speaker. Replacements for this (I have been told) are not available from Roland so I was wondering firstly what is the next best option available. It is a 10 inch 8 ohm speaker, and each pair of speakers (there are 4) is driven by an 80W power amp. My understanding is these are 'flat response' speakers and I was told are closer to hifi speakers than guitar speakers.

A second query I had was that the Jazz Chorus 90 (still in production) uses 10 inch 8 ohm speakers with one speaker per 40W amp but I was told these were not appropriate. Can anyone tell me why?

Thanks in advance.