More than 25 years I owned an electrostatic Kopfkörer Japanese company. Stax and could this recent sell at a very good price to a lover.
Reasons to Koss had a good rating, the closed design, the attractive design and the plug-in cable (coiled cable and cable with operating unit). According to Amazon reviews Koss has sometimes problems, the cable entry must be interpreted so that they will last for years.
The first hearing impression at a top receiver was disappointing: The Koss sounded muffled, detailarm and needed a lot of amplifier power. I could not believe that Koss so extradite a KH and began to recherieren.
On the Internet I found sites that themed the "settling" of new headphones. The opinion ranged from mischief and mumbo jumbo to the recommendation, with noise to act on the KH 12 hours.
A dynamic speaker system is known from magnet voice coil and the diaphragm with the voice coil suspension to the frame. The transient may only relate to materials that have mechanical damping properties, such. As the diaphragm suspension.
I read the KH "settle" for one hour at loud music. Then I sat on the KH and found that the sound has improved markedly. Then the KH drowned on the shelf for another 8 hours to herself. After the Koss was like a different person! Everything was just right: bass, midrange and treble. A very good sound, the readme think about whether the then very expensive acquisition of an electrostatic headphone was really useful.
If the "transient" with other headphones should optimize the sound, to me is at the retrievable on the Internet headphone tests and reviews a number of questions:
- The reviews were written before the transient?
- How many hours was the KH already in operation?
- If the comparison test is not steady KH compared?
I recommend to hedge the purchase decision to test all eligible headphone itself. Best in the specialized trade!
Addendum after a few months of use (point deduction):
1. Due to the design of the headphones is close to the head or on the ear. After some time, an unpleasant sensation of heat ceased, since the body heat builds up to the ears in the headphones. This effect arises at room temperatures by 21 degrees. On warmer days, this effect is likely to be much stronger.
2. For eyeglass wearers should be noted that the two temples laying it may interfere with the head. Consequence: environmental noises are not as well shielded and the bass seems a bit thin.
3. The Koss takes a surprising amount of electrical power for a good volume. This situation could overwhelm many smartphone.
In the meantime I bought for points 1 and 2 (high quality) earphones and the Koss sold again.
