This is why I use sound receivers for everything. I cannot go back to TV speakers ever again. LOL at 15-25 watts with 3.5" speakers at best. Got me a $400 on sale for $250 2008 model Yamaha 5.1 DDS/DTS receiver with 600 watts that gets the job done.
It is even loud enough to fully enjoy surround sound movies and current generation systems. You really don't need anything bigger (moar power) for even a medium-large sized living room. I will eventually put it in my bedroom with my 27" Sony Trinitron and buy a HD Surround Sound receiver when I get a HD Sony 46" LCD soon. I have been putting off a dedicated current HD setup. I have been using a 36" Toshiba HD CRT in my living room for the past 3 years, lol. It doesn't do Blu-Ray and 720p/1080p HD consoles justice, but it is a good CRT for 480i/p DVD/consoles and 1080i (HD Cable) though.