LISTEN LIKE THERES SOMEONE ELSE IN THE ROOM
It's a purely personal thing. The studio monitors you like may not be the pick of the guy down the road. There's nothing wrong with that, but beware the home Hi-Fi speakers, and even more wary of those commercial headphones. A nice flat response is what you're looking for. In this Episode, Robbo and AP discuss the ups and downs, ins and outs of studio monitoring and what to look out (or more importantly LISTEN) for.
Here are some great episodes to start with.