Specifications

AKG
HEADPHONES
HEADPHONES
633
PHOTO - VIDEO - PRO AUDIO
ORDER & INFO. [phone] • FAX: [phone] [phone]
1-800-875-6951 • www.bhphotovideo.com
K 301
In the K 301, the oscillatory behavior of the diaphragm has been
completely redesigned, with high internal attenuation suppressing
unwanted partial oscillations. This has been made possible by a very
finely structured diaphragm sound zone. Music lovers of any style
will enjoy the highly accurate, balanced tonal response. Self-adjusting
headband.
K 401
The K 401 provides everything rock and pop music fans want to
hear: tight, powerful bass; crystal-clear sound quality; and impressive
power.The low frequency performance is enhanced by the
Varimotion System technology, resulting in a powerful overall sound.
Self-adjusting headband.
K 501
The K 501s are concert hall headphones designed for lovers of
classical music. The unique Varimotion System technology provides
perfect spatial separation and an outstanding sound resolution,
resulting in a superbly defined sound. Self-adjusting headband.
K 1000 Automated Reference Listening System
A standard for music lovers and sound purists
throughout the world
Our sense of hearing detects depth and directional information in sound via a complex series of
comparisons of what is heard by the two ears. Differences in sounds arrival time, as well as phase
and frequency response,are used to determine where the sound is coming from.A stereo pair of
loudspeakers provide this directional information for the listener. Conventional
headphones make this process impossible; sounds appear on each side, but with no sense of
space or depth. The K1000 was the first commercial headphone to produce the experience of
proper depth and spatial orientation.
Highly accurate, close field reference monitor, the K1000 features a unique open air, radial
magnet transducer to produce total acoustic transparency. Speakers are angled in parallel with
the ears and do not touch them.Use as confidence monitors in acoustically inferior edit rooms.
Standing waves, comb filtering, and reverberant fields are deleted from the mix perspective. Its
open binaural design will not produce “in head localization”. Natural time delay from the speaker
is heard in each ear, providing proper depth and spatial orientation.
K 301
K 501
K401
K55 K66 K70 K100 K270S K301 K401 K501 K1000
Ty pe Sealed, Sealed, Semi open, Semi open, Sealed, Open-air, Open-air, Open-air, Dynamic
Circumaural, Circumaural, Supra aural Supra aural Circumaural, Circumaural Circumaural Circumaural Transducer w/
Dynamic Dynamic Parabolic Dynamic VLD magnet
Frequency Range 16 - 20k Hz 18 - 22k Hz 20 - 20k Hz 20 - 28k Hz 20 - 28k Hz 20 - 25k Hz 18 - 28k Hz 16 - 30k Hz
Sensitivity 96 dB/mW 96 dB/mW 105 dB/mW 103 dB/mW 92 dB/mW 94dB/mW 94dB/mW 94dB/mW 74 db/mW
(free field)
Rated Impedance 32 Ω 32 Ω 100Ω/system 100Ω 75Ω 120Ω 120Ω 120Ω 120Ω
THD: <1% <1% <1% <1% <0.4% <1% <1% <1%
We ight (without cable) 7.4 oz. 7.4 oz. 7.8 oz. 6.7 oz. 9.5 oz. 8.1 oz. 8.3 oz. 8.3 oz. 9.5 oz