deaf-mute wrote:the hd280pro headphones are dj headphones and they do not replicate the sound correctly... sure it will make a world of difference when you are listening to your tracks in the headphones but I would not use them to mix... they are great for dj'ing but not for mixing studio work...
AWW_NAWW wrote:I use a combo of good monitors (PS8s by EVENT) and now I purchased the Sennhiser (HD280pro) headphones this past Saturday and it is making a world of differance in my mixing. If you are going to buy expensive make sure you have a location where you can crank them up because they dont do you as much good being turned down. The headphones I got have a Frequency Response range of 8 Hz - 25 KHz. the human ear can only go as low as around 40 Hz and as high as around 8-10KHz so that more than covers the area i'll be listening to.
need to read more
HD 280 PRO Article No. 04974
General Description
The HD 280 PRO are closed-back, circumaural headphones designed for professional monitoring applications. Although suitable for a very wide range of applications, the exceptional 32 dB attenuation of external noise makes
the HD 280 PRO particularly useful for use in a high-noise environment. <--- That means that that the loud bull shyt around you wont filter in with what you trying to really hear
Features
sided coiled cable
saving design with collapsible, rotating ear-pieces
Delivery Includes
1 pair of HD 280 PRO headphones
1 screw-type adaptor to 1/4"
Technical Data
Transducer principle dynamic, closed
Nominal impedance 64 Ohm
Sound pressure level (SPL) 102 dB (IEC 268-7)
Load rating 500 mW
THD, total harmonic distortion 0,1 %
Ear coupling circumaural
Contact pressure 6 N
Weight w/o cable 220 g
Jack plug 3,5 / 6,3 mm stereo
Connection cable Coiled cable (min1m/max 3m)
Frequency response (headphones) 8.....25000 Hz
Glossary
Transducer principle
Two transducer principles have become established for the conversion of electric energy into mechanical energy: electrodynamic and electrostatic transducers, whereby the latter is only to be found in audiophile systems, due to their relatively high manufacturing costs. Electrodynamic transducers basically consist of a ring-shaped permanent magnet and an oscillation coil, which is fixed to the receiver diaphragm. When an audio-frequency alternating current is passed through the oscillation coil, it is caused to vibrate in accordance with the audio-frequency alternating current, thus causing the diaphragm to vibrate in the same way.
Nominal impedance
See impedance.
Sound pressure level (SPL)
Due to the impractical numerical values, the sound pressure is usually given as the logarithmic value of the sound pressure level according to the equation: dB SPL = 20 x log (po / 0.00002 Pa). The abbreviation SPL (sound pressure level) is added in order to make a clear distinction from other uses of dB. The reference sound pressure, which is at the same time the threshold of hearing, is then 0 dB SPL. The threshold of pain is 140 dB SPL. A difference in the sound pressure level of 1 dB is just about perceptible, while a doubling of the sound pressure corresponds to 6 dB and a doubling of the volume corresponds to a rise of 10 dB.
Load rating
The load rating is the amount of electric power which - according to the manufacturer´s specifications - can be continuously supplied to a set of headphones over a period of time without causing damage. According to DIN 45500 Part 10, the load rating must be at least 100 mW. Testing is carried out using a special noise signal which is supplied to the headphones over a period of 100 hours.
THD, total harmonic distortion
Total harmonic distortion is a measure of non-linear harmonic distortion and is given in %. Non-linear harmonic distortions are signals which were not present in the original before the signal was converted by the headphones. These unwanted signals are caused by the diaphragm, whose movements do not precisely move in time with the electric signals that cause it to move. Unfortunately, this is a feature of all electroacoustic transducers. Although it cannot be completely eliminated, suitable steps can be taken to minimise it. However, the user is not interested in why this distortion takes place but in how great the level of distortion must be for it to become perceptible. According to the findings of several research projects, a total harmonic distortion of 1% in the frequency range of 100 to 2000 Hz is imperceptible. Below 100 Hz, the perceptibility threshold lies at 10%.
Ear coupling
A distinction is made between headphones which are worn on the external ear (supra-aural) and those which surround the ear (circumaural). Open headphones have foam ear pads that rest on the ears or ring pads that surround the ears. Closed headphones, on the other hand, nearly always have circumaural ear pads.
Contact pressure
The wearing comfort of a set of headphones is determined not only by its weight but also by the force with which the earpieces are pressed onto the ears. This force is given in newtons (N), whereby 1 N corresponds to the compressive force which a mass of about 100 g exerts on a solid surface. The DIN Standard 45500 Part 10 limits the maximum permissible contact force to 5 N. Values of between 1.3 and 4 N are common, although lower values apply for open headphones. Higher values can be found in the case of closed headphones. Here, a higher contact pressure is required in order to achieve sufficient sealing, which is important for the reproduction of low frequencies.
Weight w/o cable
Jack plug
A common audio connector in consumer electronics and music industry. Available in various diameters; in the hi-fi segment, 1/8” and ¼” are widely used. Poles range from one to four. (Examples: headphone jack or jack of an electric guitar).
Connection cable
When one speaks about headphones, the emphasis is on such things as sound quality and frequency response. There is rarely any mention of the connection cable. Most Sennheiser headphones are fitted with an OFC (oxygen-free copper) cable. This ensures linear and low-loss transmission in the broad frequency spectrum of the headphones. Many Sennheiser headphones also have detachable cables, which make it very easy to replace them.
Frequency response (headphones)
The frequency response of a pair of headphones is given within limits defined by the manufacturer.
Glossary
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Variant
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The HD 280 - 13 are closed-back, circumaural headphones designed for professional monitoring applications. Although suitable for a very wide range of applications, the exceptional 32 dB attenuation of external noise makes the HD 280 PRO particularly useful for use in a high-noise environment.
HD 280 SILVER 05327
The HD 280 silver is a closed-back, circumaural headphone designed for professional monitoring applications. Although suitable for a very wide range of applications, the exceptional 32 dB attenuation of external noise makes the HD 280 silver particularly suitable for use in a high-noise environment.
