Sennheiser PXC 250 Datasheet

Publ.: 18.12.2002
Headphones & Accessories 1
Closed, supra-aural headphones with active noise
compensation
PXC 250
Cat. No. 04924
Description
The PXC 250 is a pair of closed, dynamic, supra-aural stereo mini
headphones with NoiseGard™ active noise compensation. Due to
their active and passive attenuation of ambient noise, they let you
enjoy music even in noisy environments. The headphones are
foldable and come with a convenient belt pouch, making them an
ideal travel companion.
Delivery includes
1 PXC 250
1 belt pouch
Features
- Dynamic stereo mini headphones
- Great for travel and outdoor use with mobile
sources such as CD, MD or MP3 players
- Fold and flip: registered design allows the ear cups
to be turned through 90° and fold the headphones
closed (headphones will lock in open and closed
positions)
- For transport: supplied with soft belt pouch with
extra pocket (185 x 105 x 40 mm)
- 1.8 m Kevlar-reinforced OFC copper cable with 3.5
mm jack plug, delivered with an adaptor to 6.3 mm
(1/4”) stereo and 3.5 mm double mono (for airline
audio)
- Ideal for use in coaches, trains etc.: soft ring ear
pads with improved fit and closed ear cups ensure
excellent passive attenuation of ambient noise (–15
to –25 dB for frequencies above 1,200 Hz)
- Ideal for aircraft and other environments with
engine noise: the switchable NoiseGard™ active
noise compensation attenuates frequencies below
1,000 Hz by up to –15 dB
- Impedance optimised for use in aircraft
- In-line NoiseGard™ power supply box (2 AAA size
batteries) clips to the belt and can be rotated
through 360°
- For all types of modern music: detailed sound
reproduction with a slight emphasis on the bass
- High-resolution sound due to Sennheiser ”Duofol”
diaphragms with spiral embossing (reduces and
spreads eigenforms)
- Ultra-lightweight voice coils for high efficiency with
portable players
- Adaptive baffle damping (patent pending)
- Bass tube for powerful, punchy bass
- Lightweight: only 65 g without cable
- Rugged and durable: robust steel headband with
metal joints, steel-reinforced headband ends,
connection to the ear cups tested for durability
- 2-year guarantee
Technical data
Nominal impedance
Jack plug
Transducer principle
(Headphones)
Ear coupling
Cable length
Weight w/o cable
Frequency response
(headphones)
Sound pressure level
(SPL)
THD, total harmonic
distortion
300 Ohm
3,5 mm stereo
dynamic, closed
supraaural
1,8 m
65 g
10.....21000 Hz
106 dB(SPL)
0,1 %