Chromecast on Digital TV to Analogue Amp

[Spartacus Maximus]

Here is the senario.

I listen to all my music (Deezer/Soundcloud) these days via my chomecast through my TV & into my analogue amp. I want to get the best sound experience, currently the TV is connected to my amp using the 3.5mm audio jack to RCA. I have a digital output on my TV and wondered what I need for under say £100 to make it work and would using the Digital output give me a better audio experience. I would love to buy the PM6005 which has a DAC but cant justify the cost to the wife at the moment ;-)

My setup is: Chromecast - LG 42LV550t TV - Marantz PM6003 - Monitor Audio BX2's

It would be great to hear feedback on my small dilemma

 

[Paul.]

http://www.whathifi.com/forum/hi-fi/all-dacs-sound-same

This thread had quite a few suggestions for cheap DACs. I didnt read the whole thread so appologies if it ends up in arguments (most of them seem to)