Douggieboy, The Power Plant 600 makes 720 watts of A/C power while the Exact Power makes 2000 watts. This is 66% more power than the large Power Plant 1200 that sells for $3950. Not bad for $1450.00 less money. Plus, per the PS website, the Power Plant 1200 needs a 220 volt line or it will only deliver 1000 watts. The Exact Power-2000 delivers much more current than any of the Power Plants and it does it from a smaller, much more efficient box that is much less costly to run. There is a link to a review of the Exact Power 2000 on their website at www.exactpower.com under the review section. Secrets of Home Theater and High Fidelity compared it to the Power Plant 600 and felt that the Exact Power was a better device. Check it out.