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Comparison A4Tech MK-690 vs A4Tech MK-650

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A4Tech MK-690
A4Tech MK-650
A4Tech MK-690A4Tech MK-650
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Connection and design
Design
in-ear
in-ear
Connection typewiredwired
Connection
mini-Jack (3.5 mm)
mini-Jack (3.5 mm) /gilded/
Plugstraightstraight
Cable supplydual-sideddual-sided
Cable length1.4 m
Cable typeroundround
Specs
Soundstereostereo
Impedance32 Ohm32 Ohm
Frequency range20 – 20000 Hz20 – 20000 Hz
Sensitivity102 dB102 dB
Speaker size10 mm10 mm
Emitter typedynamicdynamic
General
Weight14 g14 g
In box
silicone tips
silicone tips
Color
Added to E-Catalogdecember 2010october 2009

Cable length

The length of the cable supplied with the headphones with the appropriate connectivity.

The optimal cable length depends on the planned format of the "ears". So, for pocket gadgets, 1 metre or less is often enough, for a computer it is already desirable to have a wire for 1 – 2 m, and preferably 2 – 3 m. And models with a longer cable length — 3 – 5 m or even more — are mainly designed for specific tasks, such as connecting to a TV or using in recording studios.

Recall that in some models the cable is removable (see below) and can be replaced if necessary with a longer or shorter one. Also note that there are extension cables that allow you to increase the length of the main wire; such a cable may even be included in the delivery, this point (and the length of the additional cable) is usually specified in the notes.