Very interesting replies from all. Many thanks. Sounds as though I will need to do a bit of experimenting. I have a GigRac 300 which I have previously used with a JRX speaker( far too heavy) I always set the EQ to FLAT onthe keyboard and set the Gigrac to get the right sound. I do very little singing now myself, just a bit of harmony occassionally, but would sometimes have a vocalist working with me. The new Bose should arrive tonight. Interesting that the price in your country is about $1000 dollars and in Australia $1700.- not that much difference in the exchange rate. Cheers Jean