There has been a lot of enquiries about bigger speakers for the Casio range.I finally decided to use my NAD amp and Mission bookshelves using the phono jack. I am reasonably happy with the result except that to get the same sound levels in my small studio I have to turn the Casio volume up to about halfway and the amp volume up to almost maximum which surprises me Is this normal. Having done this I now want to do some recording and I am looking at some low cost amps with mixers.There is an Omega mixer amp which has equalisers for both left and right channels or a Rocksonic amp which has a mixer but no equalisers. Would the equalisers make any difference to a straight piano recording,and would I be able to hear the difference?