Looking into how I’m going to get audio into the different rooms of this house where there is no structured wiring in behind the walls to take advantage of.
UPDATE: pricing out some components, and I think I will go the DIY route with a squeezebox backbone. I have a squeezebox classic and radio already. In each room that I just want some music that doesn’t need to be played at loud volumes I can put a squeezebox radio (they go for about CND$100). In the living room I can use a squeezebox classic or squeezebox receiver with some quality speakers and a small class T amp to drive them. As a reference, the Sonos Play:5 is $450. For that kind of money I can put together much better components (speakers, amp) that will be much louder.
For compact class t amps, read this: http://madgoat.hubpages.com/hub/High-quality-inexpensive-mini-power-amplifiers
More on what small amp to use with a squeezebox: http://forums.slimdevices.com/showthread.php?91027-Stylish-tiny-amp-for-Touch/page1
100W Class T amp on ebay (w/ power supply): http://www.ebay.ca/itm/2-X-100W-Class-D-Audio-Amplifier-Combo-Kit-w-24V-350W-Power-Supply-TK2050-/350604100288?pt=US_Home_Audio_Amplifiers_Preamps&hash=item51a1a202c0#ht_4095wt_1080
A lot of the class D or class T amps seems to be based on the Tripath integrate amp chips. TA2020 is a 30W amp(@ 4 Ω), TK2050 is a 100W amp (@ 4 Ω) .
This also looks like an interesting option. In wall keypad to control with amp built in: http://www.pyleaudio.com/sku/PVC8U/In-Wall-Background-Music-Amplifier-with-USB-And-SD-Card-Player-With-35mm-Input-Jack-For-iPodiPohne-and-Volume-Control