Design
Headphones
Total Harmonic Distortion (THD):Total harmonic distortion is a measure of non-linear harmonic\n\ndistortion and is given in %. Non-linear harmonic distortions are\n\nsignals which were not present in the original before the signal was\n\nconverted by the headphones. These unwanted signals are caused by the\n\ndiaphragm, whose movements do not precisely move in time with the\n\nelectric signals that cause it to move. Unfortunately, this is a\n\nfeature of all electroacoustic transducers. Although it cannot be\n\ncompletely eliminated, suitable steps can be taken to minimise it.\n\nHowever, the user is not interested in why this distortion takes place\n\nbut in how great the level of distortion must be for it to become\n\nperceptible. According to the findings of several research projects, a\n\ntotal harmonic distortion of 1% in the frequency range of 100 to 2000\n\nHz is imperceptible. Below 100 Hz, the perceptibility threshold lies\n\nat 10%.
0.1%
Impedance:The effective resistance of an electric circuit or component to alternating current, arising from the combined effects of ohmic resistance and reactance.
48 O
Headphone frequency:The range of frequencies (low to high sounds) that the headphones can produce.
20 - 24000 Hz
Ear coupling:Ear coupling describes the way in which headphones or earphones stay attached to, or inside, the ear. There are three common types of ear coupling: circumaural, supra-aural and intra-aural. Circumaural headphones enclose your ears with large pads that suppress external noise. Supra-aural headphones are typically more lightweight and sit on top of the ears with small pads. Intra-aural headphones come in two basic designs and neither style sits on the head itself. The first are ear buds, which sit just outside of the ear canal, on top of your ear lobes. The second type is actually inserted directly into the ear canal and offers some external noise suppression.
Circumaural
Logistics data
Master (outer) case gross weight:
9.2 kg
Master (outer) case height:
262 mm
Master (outer) case length:
516 mm
Master (outer) case width:
380 mm
Microphone
Microphone direction type:
Unidirectional
Microphone noise-canceling:
Other features
Packaging content:
A40TR headset (black)
A40TR microphone
ASTRO speaker tags
MixAmp™ Pro TR (black)
2.0 m A40TR inline mute cable
3.0 m TOSlink optical cable
3.0 m micro-USB cable
0.5 m digital daisy-chain cable
Dolby technologies:
Dolby Digital 5.1 Surround Sound, Dolby Surround 7.1
Packaging data
Package type:The type of product package e.g. box.
Box
Package weight:Weight of the packaged product.
1.9 kg
Package height:The distance from the top to the bottom of the packaging.
236 mm
Package depth:The distance from the front to the back of the packaging.
355 mm
Package width:The distance from one side of the packaging to the other.
110 mm
Performance
Headset type:A headset is headphones combined with a microphone, or one headphone with a microphone. Headsets provide the equivalent functionality of a telephone handset but with hands-free operation. Types of headsets include single earpiece (monaural) and double earpiece.
Binaural
Recommended usage:What the product should be used for, and how it should be used (e.g. ambient temperature).
Gaming
Wearing style:The way in which the device is worn.
Head-band
Product type:The sub-category of the product.
Headset
Ports & interfaces
Bluetooth:Bluetooth is a low-power radio technology developed to replace the cables and wires currently used to link or connect electronic devices such as personal computers, printers, and a wide variety of handheld devices including mobile phones. Because it uses radio-wave connectivity, a Bluetooth-enabled device has a constant, established connection to whatever browser it uses. This saves the user the trouble of logging on to check for emails or news updates, for example.
USB connectivity:The product has USB connector.
Connectivity technology:
Wired
Weight & dimensions
Weight:Weight of the product without packaging (net weight). If possible, the net weight is given including standard accessories and supplies. Please note that sometimes the manufacturer leaves out the weight of accessories and/or supplies.
360 g
