Is lazy or black technology? The ultimate SIGNATURE PRO dismantling and authenticity

The ultimate SIGNATURE PRO, the first thing after removing the earmuffs is this. Unlike the general earphones, there is a whole piece of iron plate. It is speculated that it is the ULE technology, which claims to reduce the external electromagnetic interference. Then I want to use the metal case headphones. Have a similar function.

Then the unit is placed underneath as usual, and the sound outlet only covers a part of the diaphragm. I don’t know why it is covered with layer plastic instead of burrowing directly on the iron plate like other extreme headphones. The diaphragm is not clear, it is silver. Titanium-plated diaphragm. The shape of the opening around this is relatively common. Other extreme earphones are mostly round holes. The upper and lower filter papers are different in thickness and thick on the top. Although it looks different, this one is also S-LOGIC+, which is estimated to be the lower unit and these holes.

Unscrew the three screws and disassemble it. It is disappointing that there is nothing inside. I still see the closed earphones in the cavity for the first time. The shape of the cavity is also very ordinary. This is why I speculate that S-LOGIC+ is the hole on the iron plate, because the cavity is really nothing but completely empty. Is it technically empty?

The unit looks as much as the cheap goods produced by Fengda...but there is tuning on the unit! There is a sticky paper on the back to seal a hole! German craft German technology! The atmosphere is rigorous!