Can binaural recordings enhance my meditative experiences?
I think this comes from a a common misapprehension of what meditation is and what it's supposed to do.  Simply sitting down on the cushion in search of a "bliss out" experience or for the purposes of changing one's consciousness is a dead end that even the Buddha wandered down early in his spiritual career (e.g. his time with Uddaka Ramaputta and Alara Kalama).  

Just changing brain waves literally disembodies your practice.  It bypasses the our physical form which is perhaps our greatest ally and teacher on the path. The path meditation is a gestalt that incorporates not just changes in brain patterns, but everything from how you cope with the pain in your legs and back, the effort and resolve it takes to sit day in and day out with no immediately perceivable results, the psychological snags we have to work through etc. etc. etc. [x1,000!]  

What you described may causes changes in consciousness, but these changes will ultimately prove to be superficial.  They are mere vacations from our suffering and not a complete termination of their causes.