The Pioneer SE-MJ591 Stereo Headphones are, hands down, the best sounding earphones I’ve ever had the pleasure of testing. The imaging is phenomenal and rivals my experiences with $20k a pair electrostatic speakers. The sound quality is rich and vibrant and, if you are anything like me, you’ll start rediscovering your music collection. They are designed for both critical listening and portability, making them perfect for multiple applications. While they’ll reveal all the flaws in your poorly recorded/encoded music, they’ll also reveal all the beauty in the high-quality recordings. I didn’t find them very comfortable to wear, though you may feel differently. At $300, these aren’t inexpensive headphones but, if you care about sound quality, you’ll likely feel it is money well spent.
The Pioneer SE-MJ591 headphones came with a carrying case, a removable cord, the instruction manual, and the headphones. The carrying case is probably the nicest I’ve seen and features a hard, padded exterior with modeled spots for the headphones and a channel around the outside for the detachable cable. There is more than enough room here for a longer cable. The outside of the case has a small, mesh pocket. This carrying case is, without a doubt, the nicest I’ve seen with a set of headphones.
The headphones fold back on themselves so that they are just about as compact as they could be for easy storage and transport. While still large enough that you’ll have to thing about where you are going to pack them (should fit in your laptop case somewhere), the protection of the case is formidable. While they couldn’t take being run over by a car, if you dared me to throw the case, with the headphones inside, out the window of a speeding vehicle, I would do so without hesitation. This is serious protection.