Grouping is done by physical characteristics based on the Sennheiser PX 90 which indeed look smaller and slimmer than standard headphones in general. With metal materials, which can be arranged headbandnya be one cause of the small size of these headphones. Even so, this headband is sturdy enough so that its position firmly when in use.
Bearings or commonly called the PX 90 earpad this small though, but quite comfortable. Using these headphones for a long time did not quickly make the 'tired', aka sweaty ears. Interestingly, because the concept headphones are compact, earpadnya can be folded in such a way that makes it easy to be saved was then taken.
Although the size of the earcup and the driver is smaller than other standard headphones, this does not cause his voice sluggish. PX 90 has a strong bass character although not the kind of closed headphones. So although not completely closed, not a problem for the affairs of a low tone reproduction. The good, the low tone is not excessive portions are so high-pitched vocals and still adorn the overall strains of the song sounds good.
Specification
| Ear Coupling | Supraaural |
| Prinsip Transducer | Dinamik, open |
| Frequency Response | 20 – 20000 Hz |
| Impedansi | 32Ω |
| THD | < 0,5% |
| SPL | 108dB |
| Weight | ± 68gr |
| cable length | 1,2m, double-sided symmetrical; 3,5mm jack stereo Plug |
| Site | http://www.sennheiser.com |
| Guarante | 2Years |
| Price* | ,- |
Article sources http://www.tabloidpcplus.com/2011/09/review-produk/review-headphonesennheiser-px-90
