Hi Dak surprised you still use a powered desk. 1200w does not seem very powerful for most venues. Have you not tried a passive mixer and active speakers? These speakers come in various sizes and are available with bass bins. You can also daisy chain them and use the smaller ones for fold back. Over the last year the prices have dropped dramatically and are actually cheaper than speakers plus an amp or powered desks. Versatile, portable and awesome sound, clipping does not happen and they are impossible to blow. We use a full range of Mackie actives but have JBL eons as backup and would never go back to amps or powered mixers ever again.