I have a 3-4 year old 500GB Time Capsule in the basement wired to a Verizon FIOS router. The FIOS router WiFi is turned off and the Time Capsule is broadcasting the WiFi. In the kitchen on the 1st floor is an airport with an aux cable to the stereo there to play iTunes from a Macbook. The kitchen airport is about 20 feet from the basement Time Capsule with only wood floor in between. I also have a 2nd floor with no WiFi devices on it. I've been using my Macbook on the 2nd floor more than before. My wife uses another Macbook on the 1st floor.
I want to upgrade things to accomplish these goals:
Faster Wifi on the 2nd floor and a better signal there and thru the house.
Airport in the shed in the yard to play iTunes music thru an aux cable to a stereo there.
Originally I thought of buying 2 more $100 airports, one for the 2nd floor and one for the shed.
Then I looked at the Airport Extreme, and read reviews and decided it might be better to get that for the kitchen and move the kitchen one to the shed.
This would probably give me the bandwidth I want on the 2nd floor and thru the house.
However, I'm not sure about this solution, because, if I am still using the 3-4 year old Time Capsule in the basement hooked to the FIOS router with a cable, and that is the first broadcast of WiFi, then would the total bandwidth be limited by that older Time Capsule? I think so but not sure how much this will affect things. If it works well, this solution would cost me $200 total...just buying one Airport Extreme.
Another option would be to replace the older Time Capsule with a new Time Capsule. I'm also considering moving it to the kitchen, if the network cable can be that long - can it be 20-25 feet long?
If I am going to replace the Time Capsule, I'd buy the big one which would cost $400. Then I would move the airport in the kitchen to the shed.
And I could sell the older Time Capsule for, I guess, $50-100 or whatever it goes for.
I'm looking for some advice from those who understand WiFi signals and strength better than I do.
Thanks for the help!