Well, I was all set to buy the DT1350 facelift version headphones. However, I changed my mind after reading about the Sony MDR-7520 headphones.
I already own a pair of ATH-M50 phones that I continue to admire for the price paid.

HOWEVER...these Sony MDR-7520 are in a completely different league!! Yes, they will set you back $379 (B&H Photo). To my ears, these headphones are very accurate and true. The first thing that I thought when I first put them on is the clarity of the sound. It also doesn't hurt that they are
extremely comfortable.
The separation of the instruments are wonderful.
Russell:
You really need to put these on your radar as far as mixing goes. Not sure how much they go for in Canada but I think you would be very pleased indeed.

Regards,
Randy
Here are some pics...


