Listen to ZES "Do it Again" or another liquid bass type electronic track and you will fall in love. I'm buying a second set in case these ever fail on me.
I hope JVC makes a successor. I'd love to see another Triple Driver earphone using a Kelton-method subwoofer unit (maybe even bigger than this one) paired with dual BA drivers for mids and highs.
Everything interesting they've made since has been dual driver without the subwoofer unit, wood with one driver, or lower quality basshead units. To abandon the amazing tech in the FXZ IEMs and SZ headphones because of failed marketing is simply tragic.
I should have a review up here on Head-Fi and over at Basshead.Club later in the week.