[brunospiaggi]

Ok, I'm from Argentina, so I'll make some orthographic and spelling mistakes jaja.
I have a kenwood ka-400 stereo integrated amp, a pair of polk tsi 300 speakers, and I moustly listen to music from my pc (integrated sound card) and sometime from a turntable. My cuestion is what should i buy if i want to upgrade my sistem. I want to spend up to 600usd.
I've seen some dac's but i don't know if it will be better if i upgrade my pc sound car o my speakers or my amp...
One more question, do you think is better the technics Su-7700 or the kenwood Ka-400?
Thanks for answering.

 

[PurpleAngel]

For a low cost DAC to go between the computer and your amplifier.
Hifimediy Sabre U2 USB DAC, $57+shipping
http://hifimediy.com/index.php?route=product/product&product_id=123
 
As I have no idea what local audio equipment you have in Argentina (beside the Techica SU-7700), not sure what else you should upgrade.