GO for the PA-7. That way, you will have suffient power for most speakers you will ever buy, unless you step up to the real high end. They do run hot though so that you know. They really should be placed in a rack. Quality is first rate and if you can find a pristine example, buy it! I wish I hadnt sold my PA-7. Powerful bass, most of the weight is in the power supply. Use an aftermarket power cord designed for some current draw and use some premium speaker cables.
