I am planning to buy an entry level audio system, Ortel RA 1520 integrated amplifier and B&W CM 8 speakers.need advice if this is a good combination or any other recommendation.
You must mean Rotel, not Ortel....lol.
That is a decent amplifier for a small system. I personally think that the Music Hall A15.2 is a somewhat better amplifier for a lower price; check it out at Music Direct.
I personally think that those speakers are way way overpriced and not all that good-sounding compared to the competition.
I would prefer a set of PSB Image T6 speakers, or a pair of KEF Q700 speakers.
They both cost less and perform better IMO.
Another very good one is the Monitor Audio Silver RX-8.