I have purchased the LSiM705, LSiM704c and the LSiM703 along with the Onkyo TX NR 828. Great sound but I would like to bring them to a higher level! Many say that the Onkyo NRTX 828 will not provide enough juice for the LSIM series and are suggesting I should get an exteral power amp to do the job. The Onkyo TX NR 828 is rate @ 130W, 8ohm and i am looking for a amp to top that. I looked into serval brands and the price tag on those is way out of my led!!!! (After getting the full series of LSIM i m petty much broke). I went to the onkyo wed site and see they have the PA-MC5501 9ch rated @ 150W per -Channel Power 8 ohm @ a reasonable price. I am planing to use the PA-MC5501 to push the 2 fronts and center LSIM and leave the surround to the Onkyo NR TX 828. My question is that is it worth to buy this PA-MC5501 rated @150w to go along with my existing TX NR 828 with the difference of +20W?