Gtx460m driver.


Gtx460m driver





Gtx460m driver.


Sennheiser PXC 450 – smart noise canceling headphones

Sennheiser Introduces New PXC 450 Noise Canceling Headphones For Music On The Road. Headphones have a closed circumaural design – a large diameter membrane, ear pads fit to the head and completely cover the ears.

According to the manufacturer, the NoiseGard active noise cancellation system was originally developed for pilots who need a high level of protection from external noise with good sound quality. The principle of operation of NoiseGard is as follows: miniature microphones measure the frequency and level of low-frequency noise around the user, and then an inverted sound wave is generated (with a phase of 180 degrees). The noise and its phase-inverted copy are superimposed and practically cancel each other out. The PXC 450 uses the second generation of this system – NoiseGard 2.0, with improved compensator circuitry and microphones. Sennheiser promises that headphones will filter out up to 90% of noise (23 dB).

Quite interesting is the TalkThrough function, which allows you to communicate with people nearby without removing the headphones. When TalkThrough is activated, external microphones are switched to “listen” to external sounds. In this case, the sound that goes beyond the frequency range corresponding to the human voice is filtered out, and the user hears the “purified and improved” speech of the interlocutor against the background of music.

The ergonomics of the PXC 450 are also improved with the volume buttons located on one of the headphones, as well as the detachable cable. NoiseGard uses one AAA battery, without which the PXC 450 will operate normally.

The novelty will appear in stores in March at a price of $ 500.


  • Type: closed dynamic
  • Ear Pads Type: Circumaural
  • Impedance: 150/750 Ohm
  • Frequency Response Range: 8 Hz – 28 kHz
  • Harmonics (THD): less than 0.1%
  • Sound Pressure (SPL): 108 dB
  • Noise compensation: up to 23 dB
  • Cable: 1.4m
  • Plug: 3.5 mm (minijack)
  • Power supply: 1 x AAA, up to 16 hours


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