How to make a home media server\access point?

Question

media servers

Task:
1) Internet throughout the house via wifi.
2) File storage available via wifi.
3) Streaming video to laptop/xbox/Ipad, different audio to different BT speakers from this storage.
Actually, what is not clear:
1) Now there is a router of the n standard, I found out experimentally that:
a speed of more than 2.5 MB \ s is impossible, which is not enough - as I understand it, the power of the router itself is not enough.
2) What kind of hardware is needed on this media server so that there is a high Wi-Fi speed close to that declared for this protocol (I'm not talking about the Internet itself, it is clearly limited by the tariff, etc., but about the speed of access to the storage or between laptops for example)
3) Will point 2 solve the speed problem if there is a standard external / built-in wifi adapter on the side of the laptop / box, which is also a standard.
4) What OS to put on this server for multicasting and everything you need for streaming to work, it is important that boxing also understands it.
5) Will it be possible to connect to such an OS via BT, for example, 3 sets of speakers, and it will be convenient to manage them, i.e. output different audio streams to different speakers?
6) Are there ready-made solutions that may require a minimum of finishing.
PS: I have minimal experience in setting up niks, at least the option with setting through some non-console interface is desirable).

Answer 1

Let's go in order:

1) Now there is a router of the n standard, I found out experimentally that:
a speed of more than 2.5 MB / s is impossible, which is not enough - as I understand it, the power of the router itself is the issue.

It is extremely strange, the model of the router in the studio, and also describe how the testing was carried out.

Answer 2

Try openwrt.org/ - a large community + a lot of documentation + open system for increasing functionality.

Answer 3

1) Internet throughout the house via wifi.

Here, by the way, it would be worthwhile to clarify which house, in the sense of the wall, otherwise just a week ago a friend had to combine routers via WDS, since in one of the rooms the signal loss was almost 90% (and this is in an apartment, though the walls are very thick there ).

Answer 4

Let's clarify the unit of measurement, I'm talking about MB, you seem to be talking about MB, which differs by 8 times) and so my 2.5 MB = 20 Mbit

Answer 5

Gentlemen, I have been working with wifi for more than one year, and on hardware cheaper than 5000 rubles I have never seen speeds higher than 33 Mbps, specifically 33 Mbps was achieved on DLink DWL-2100 access points, with BlueBox firmware with powerful antennas of 27 db at a distance of about 2 km in the absence of line of sight (trees). Full support for the n standard, and speeds up to 100 Mbps (not 300!) Is achieved only on devices with two antennas, one receives and the other transmits. If you really need a reliable high-speed network, pay attention to Ubiquti equipment (do not consider it an advertisement, these are really high-performance, powerful, external / internal all-weather access points)