Thread drift but....
The PO of my boat was very proud of his sound system. He has a very powerful home receiver, complete with surround sound in the saloon, including a large sub-woofer. He has separate stereo speakers in the PH and fly bridge, each with a volume control that is independent of the setting on the receiver in the saloon. He had an XM radio receiver connected to it (I have since swapped out an ipod or my phone for Pandora) as well as the KVH TV and a CD,DVD, Blue Ray player.
I like music while on the boat, this this is a bit overkill. The only way to play it is with shore power, the genset, or the inverter running. The sound system likely takes way more ah than the refrigerator does. The idea of having to run a genny just to listen to music seems more than a little silly. The shear size of all the equipment means that an entire cabinet in the saloon holds nothing but the sound system and sub woofer.
I am tempted to gut the system and replace it with a 12v sound system. I do like being able to have the volume control in the PH to be completely independent from the saloon or fly bridge and be able to control the PH and Flybridge volume from those location.
If anyone has some great ideas for 12v systems, I would love to hear them.