Singing microphone on the PC?

[Cristu]

Not sure if this should be here or in the peripherals part... anyway:

 

I still have a Shure Beta 58A from the time I used to be a vocalist on a rock band (lol). It's said to be of professional quality, so... now I'm in need of a good headset and I thought that maybe I should focus just on the phones and not care about the mic, since I already have a good one. The question is, it has an XLR plug and the PC is eighter P2 or USB. I already found the adapters, however I read here and there some superficial info stuff about the signal not being enough to support a mic like that one. So, here are the questions:

 

1. Is P2 better then USB for quality?

2. What would be the cheapest way to extract the most out of the mic?

3. If I just used a XLR to P2 adapter, what exactly would I lose comparing to the answer of the question above?

[AyBuild]

Don't go direct from either have some sort of hub in the middle to process the sound.

[ved]

1.No

[creatip123]

Those kind of mics most probably gonna need a phantom power. Get a USB audio interface, like scarlett focusrite for example.

[Cristu]

The problem is an audio interface would be more expensive then the mic itself. What would happen if I just go direct? There is no cheap way?