What ASIC to buy (noob)

[techies1400]

Hello I'm Pol from Spain and i just thinking to buy one ASIC to start mining i can't pass about 1900$ buying the ASIC, the Power supply and and other product if is needed with the ASIC. I just want the most efficient ASIC at these price. (the ASIC that more $/moth gives me) and i want to get back the money that i inverted on the ASIC the more quick as posible.

At these days i just seed that the antminer D3 gives actually 5,210.01$ per moth. But i supose that when the ASIC arrives to my home this numbers go down. Because i think that when more people mine these coin more less money we win mining it.

So thanks to the person that give me some support beforehand

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[Swimmer63]

I believe the most efficient ASIC miners right now from a profitability standpoint are the Antminers, D3, L3+, S9, T9 in that order.
But only the S9 and T9 mine bitcoin and can be discussed here in the Bitcoin Mining Forum.
The D3 and L3+ mine altcoins and need to be discussed in the Altcoin Mining section of the forum.  https://bitcointalk.org/index.php?board=160.0

As of right now Bitmain does not appear to have any of these for sale.  I recommend you wait until they announce a batch for sale, then purchase directly from them.
ASIC miners are expensive and you might as well get a warranty if you are going to spend that much money. 
Additionally, there are very few reputable re-sellers of ASIC mining equipment.  And most will not sell you a miner unless you pay them more than they can make by mining with it themselves.  That means you will pay more for the miner than you will be able to recover from mining.

There is no easy money here I guarantee.