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Amperior (Silver) - Sennheiser USA

Article No. 505573

Intro
Description
Technical Data

Key Features

Based on proven studio headphone acoustics
Rotatable earcup for single-ear monitoring
DJ Inspired functionality with iPhone integration
Detachable inline remote w/ mic for Apple devices

Headphones for DJ - Over Ear Headphones

$349.95

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General Description

The trusted sound and reliability professionals rely upon day in and out... remixed. Introducing the Amperior series from Sennheiser.

From the moment you lift the lid of the meticulously packaged gift box you are welcomed to an exclusive, elite family of Sennheiser owners. The precision workmanship, impeccable detail and emphasis on quality, reliable materials leave no doubt in your mind that this is what sound should embody....and you have not even pressed play yet.

Razor-accurate percussion instigates head-bobbing. Soaring mids and trebles get you closer to the original studio mix. Full-bodied bass lines are effortlessly lifted out of the mud and placed deep within your conscious. This is what it was like to be there when the song was finished. This is what it is like to be Sennheiser.

Some headphones make their biggest statement around one's neck. The Amperior series makes its namesake on your ears.

Features

Legendary, trusted Sennheiser acoustics
Impeccable durability and build-quality
Rotatable ear cup for single-sided monitoring
Detachable smart remote and mic for Apple devices
Completely modular components for nearly infinite operating life
Single-sided cable

Delivery Includes

HD 25 Amperior headphones
Detachable Smart Remote
Quick start guide

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$349.95

Technical Data

Frequency response	16-22,000 Hz
Transducer principle	Dynamic, closed (noise isolating)
Ear coupling	On-the-ear
Impedance	18Ωs
Load rating	200 mW
THD	<0.3%
Max SPL	120 dB
Cable length	3.9 feet
Plug	1/8 inch (3.5mm), straight
Weight (w/o cable)	6.7 ounces
UPC code	615104229181
EAN code	4044155078695
Dimensions (single box)	7.9 x 4.3 x 10.25 in
Weight (single box)	1.3 lbs
Dimensions (master carton)	16.6 x 14.1 x 9.8 in
Weight (master carton)	9.9 lbs
Master carton quantity	6
Dimensions (single)	7.9 x 4.3 x 10.25 in
Weight (single)	1.3 lbs

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$349.95

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Glossary

Cable length

The cable length is usually measured between the anti-kink sleeves of the cable (cable length without connectors).

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.

Frequency response

The frequency response of a microphone is given within the limits defined by the manufacturer. In studio condenser microphones it is generally within the range of between 20 Hz and 20 kHz.

Impedance

Impedance expresses the AC resistance of a microphone or a set of headphones. It is dependent on frequency and is given at 1 kHz as the so-called nominal impedance. Impedance is measured in ohms. In recent years, an industrial standard has developed, setting the impedance of headphones at 50 or 600 ohms. Sennheiser headphones are manufactured according to this standard, thus practically ruling out connection problems. With microphones, the input impedance of the following microphone amplifier should have at least three times the value of the nominal impedance, in order to prevent it from unnecessarily attenuating the microphone signal.

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.

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.

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