Oh dear ...
lol, it's not quite that easy ... many people try to sell their stuff online and hope to license it to different territories and eventually have a hit record or sell enough to keep it going, I know many people who tried for years and never made a penny, on the contrary.
Without support from big DJ's, chart returns, charts, radio, promotion and most importantly, great records, it is likely to be a sour experience.
I'm not trying to put anyone off, I did exactly the same thing and started a couple of labels in 2001 for my output as an artist/producer, we had to shut one within a year, the other is still going
Destined Records.
Although I had a couple of big hits, it's a very expensive baggage, you need to ask yourself the following :
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Why do I want a label ?
Have I got enough money to facilitate at least one big name remix on a release ?
Can I afford to fail for the next 10 or 20 releases ?
Is anyone out there would be better than me for selling my records ?
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Starting a tech-house label means you've just joined just about every other label who tries to break it on beatport.
If I were you, I would try to get my music attached to some big releases or big name artists (remixing for free in order to get your name around).
After you have the support from a few big DJ's and you know that they will listen to your music, you can try to do it with better chances of actually selling records.
Building your reputation is the key to the whole thing, without it, no one would care what records you're releasing.
Good luck never the less, I hope you break big !