This thread is about all Mitchell & Johnson hybrid headphones. They feature a 40mm dynamic bass driver crossed over to an electret mid/high frequency flat panel driver. This enables them to cover an amazing frequency range beyond 40,000hz. Perfect for the new hi res recordings. Original model was the HP1. Followed by the GL2SE on Kickstarter ( now sold with slightly different cosmetics after the Kickstarter campaign and called GL2). They were so successful Mitchell & Johnson started an Indiegogo campaign on Dec. 04, 2016 to introduce a full line of Electrostatz hybrid 2 way closed back full size over ear headphones. These include the GL1, GL2, MJ1, MJ2, and a DJ model JP1. These headphones have already been manufactured and are ready to ship after the mandatory Indiegogo 15 day post campaign waiting period. M&J is providing very nice discounts on these headphones. https://www.indiegogo.com/projects/...d-electrostatic-headphones-audio/x/11005829#/ I have the GL2SE, HP1, and the MJ2 just arrived. Tell us about your M&J Electrostatz headphones. There is a lot to talk about. UPDATE: MITCHELL & JOHNSON HEADPHONES MUST BE PLAYED MANY DAYS TO REACH THEIR TOP SONIC ABILITIES. PLEASE DO NOT JUDGE THEM RIGHT AFTER OPENING THE BOX. THEY NEED APPROXIMATELY 200 HOURS OF PLAYING. This is called break in or burn in. It is similar to a new car engine. You do not have to listen the whole time. Put your player on repeat shuffle, turn the volume to average or slightly higher and play music. You can place the headphones in a semi open sock drawer to reduce the noise. Check on the headphones every few days. They are worth the effort. You will find initial sound and burn in mentioned often in the following posts. It also pops up other places. This update is provided to give new M&J headphone owners a headstart on enjoying their great sounding headphones.