Welcome to the thread Tobias89. These are very interesting headphones! I have both the GL2 and MJ2. I will do a quick comparison. Construction: GL2 is nice plastic with solid wood earcups. 1 single sided detachable cable using 3.5mm trs connector in left earcup. Due to a trough in wood, the connector must be slim barreled. Oval earcups are smaller than Sennheiser HD600/650. Very light weight. MJ2 has metal construction with solid wood ear cups. Y cable with a 3.5mm trs going to each earcup. Cables exit out bottom of earcups and any barrel size 3.5mm trs is fine. It is impossible to reverse channels by plugging Y cord in wrong! No matter how they are plugged in left will always play left and right will play right - ingenious. Rectangular earcups are very slightly smaller than GL2 but have more ear room. Earcups are beautifully engraved with Mitchell & Johnson name. There is a hidden mechanism that easily allows folding the headphones! These are much smaller than the GL2 when folded and this makes for a very portable over ear headphone. Sound: There is a family resemblance to both headphones due to using the same hybrid Electrostatz technology. They are detailed without being analytical, open sounding with large soundstage and have the ability to image out of head when the recording permits. They are tuned differently. Both headphones are closed back and passively reduce environmental noise. They also preven others from hearing your music. It is amazing how open these closed back headphones sound. GL2 reminds me of a warm tube amp with detail. These are warmer than neutral with a lovely sound to them. Just lovely. Voices have body and display lots of emotion. The high frequencies are pure, detailed and smooth. Not bright. Can listen to these all day. So effortless they make many headphones sound ragged and a little broken. Very efficient and should play on anything including phones. They can image outside the head. The focus is slightly diffused compared to MJ2. These headphones require major break in. Thought they were broken upon arrival. One note bass, tizzy highs. I have never heard any other component change so much with break in. MJ2 is tuned more neutral in the bass. Probably just slightly warm. Slightly. There is more detail every where. The soundstage is large but slightly smaller than GL2. This is due to greater focus. Everything has an exact placement in the soundstage. The detail retrieval is amazing. The tighter bass enhances the jump factor when something is banged or dropped. The transients are incredible. There are recordings that make me jump every time. Even though neutral tuned, these headphones never sound cold or clinical. They just have amazing amounts of natural sounding detail. They are even more comfortable to wear than the GL2. These also improve with break in but sounded much better right out of the box. Hope this helps. Ask if you need more. After getting the GL2 and MJ2 my other headphones sit unused.