Originally Posted by zed6and789
with no subwoofer, is if the lower frequencies of the three channels set to SMALL will be re-routed to the left and right speakers that can handle the bass or if my system will just remove the lower frequencies entirely from those channels..
The first one is what happens.
" Also, when channels are set to SMALL, is less power sent that direction so can I get speakers with a lower power rating? The amp is 105 watts/channel, and the speakers I am looking to get are rated at 80 watts"
It is rare that a full level signal is sent to the rears. I call this "exploding Death Star mode" and even then I'm not entirely sure what the rears are doing in that scene, but everyone seems to get the idea I'm pointing out and that most movies aren't loud in the rears except for explosions, maybe.
Instead of worrying about watts, a grossly over marketed concept, how about worrying about quality? In-ceiling speakers:
A. Aren't easy to reposition if you change your mind and don't like their location where you drilled a hole.
B. Usually have very little if any degree of aiming capability.
C. Instead of being either acoustic suspension (sealed cabinet) or duct port/passive radiator design (as I'm willing to bet your front speakers are) they are usually of the infinite baffle or even worse "free air" kind of design. These are how speakers were designed back in the 40s
, but since they have no clue as to what sort of air capacity to expect behind the woofer cone in the ceiling, they are forced to make these huge compromises.
D. They are often made more by "accessory companies" rather than "speaker companies" so their performance is iffy.
F. They pretty much never get reviewed by the long established, big name audio magazines since they consider them of such a low quality.
G. Finding frequency response measurements taken by third parties is exceedingly difficult, in an attempt to judge their quality, and even if you do it is sort of meaningless since it won't actually speak to what you should expect in your room, with your air volume behind the woofer cones, listening at your angle.
H. The woofer sound radiated into the room from its front surface is the same that is radiated by its back surface into the air pocket in the ceiling, so your upstairs neighbors, if you have them, will hear your noise louder than any other setup where at least there are two membranes separating them from you, not just one with the woofers mounted, (gulp) inside
it. Side neighbors or house mates also will get louder than normal exposure to your sound.
Ceiling speakers are great for elevators and department store background music/intercom use but I recommend against them for critical home use.