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
I didn’t realise JBL made decent gear. Where I come from (Australia) JBL is very popular in the mainstream electronic entertainment chain called JBHIFI. JBL products flooded the shelves with crappy portable bluetooth and headphones/speakers aimed at the average consumer who listens through music with their iphones. Is this the same JBL?

Search results: 'jbl' | JB Hi-Fi (jbhifi.com.au)
What makes a 'loudspeaker' any different to a studio monitor, or bookshelf etc, they look basically the same?
What makes a 'loudspeaker' any different to a studio monitor
I'm not a pro but a monitor generally has to fulfill a number of criteria. 
1. Flat frequency response within its range.
2. Small enough for close in use so the sound imparted to the engineer is not caused by room reflections etc.
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