Very new to high end audio - Recomendations


Hello, as the title says etc etc.
a few years member of headfi and enjoy my personal mobile setup, but looking into something for the home. This site was suggested as a nice place to look around in.
Knowledge is almost zilch when it comes to speakers/amps etc. 
I'm thinking maybe active speakers and I can line out from my DAP, will that work? How do active speakers perform best? what would work out better if matching prices in active speakers or passive with an amp?
Budget is fairly low, max £1000. Something to introduce me into the scenery. Something nice secondhand (preloved) or if a nifty setup can be bought new at a budget along those lines. Thanks in advance for any suggestions :)
death_block
With the LS50 you can easily add a KEF KC62 sub in the future. I run a 10 year old LS50s (can guy these for $900 today) driven by 380 watts of Benchmark AHB2 mono power in a second system.  It is pretty amazing sound, especially now with the sub. Even 100 watts of power will work great with the LS50.

A lot of people want to buy the LS50 Meta that recently came out so there are a lot of old LS50s available today (like my one which I am not selling).