On youtube check out Z Reviews for some colorful ( NSFW language ) reviews. For more 'correct' reviews I like Metal571 and Innerfidelity.
Seriously though if you're looking at ~$300 range cans look for some used Massdrop x Fostex TH -X00s.
Purpleheart - very V or W shaped. Boosted highs and lows. Recessed mids.
Mahogany - Closer to the Purpleheart but less emphasized. Still 'fun'. <-- I own them.
Ebony - Flat and neutral but with greater bass extension than either of the others. <--- I own them.
You won't find better electronic/EDM/Pop music headphones for less. The Ebony does surprisingly well with just about anything. Worth checking ebay. Also Massdrop is working on a new revision with detachable cables fixing the one major complaint against the first models.
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/www.youtube.com/watch?v=3pFM_hW33bw"][/video]