Best speaker cables for under 500$ (Euros)

Whatever you decide, this is definitely an item to purchase used.  Low risk on some hidden damage or abuse and you will get 1/2 off new pretty easily.  

I agree with 3 payments about buying used. That stated, I would recommend "cerious" brand speaker cables if you can find them. 

WireWorld Series 7 are outstanding value now that people are upgrading to Series 8

My tips for a 500 euro set:

- Tellurium Q Black II
- Kimber 12 TC
- Nordost Purple Flare
- Harmonic Tech Recta C11
- Townshend Isolda

And watch the second hand market (hifishark), because a lot of rich audiophiles swap cables often.

I'm not familiar with the European marketplace, or what brands are readily available there.  My knowledge is limited to the North American market, but I'm sure at least some of these brands are available in Europe.

I'll echo the British(?) brand recommendation, Chord has a great rep and certainly worth a look, though they get expensive pretty fast.