How loud are you planning to play this stuff for your clients? If you're under 80 dB, you should be just fine. If you're going to blast them out of their seats, well, you've got more problems than just a live room!
Ha ha, well the average customer will probably be presented with music well below even 80 db... however the seniors will probably appreciate being blown out of their seats!!! lol
Sorry to quote myself, but upon rereading I thought I'd just clarify that I meant 'high school' seniors in that post, not people over the age of 60!