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Comparison Sony MDR-EX155 vs Sony MDR-EX15LP

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Sony MDR-EX155
Sony MDR-EX15LP
Sony MDR-EX155Sony MDR-EX15LP
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Main
The modification of the MDR-EX15AP model has a remote control and a microphone
Connection and design
Design
in-ear
in-ear
Connection typewiredwired
Connection
mini-Jack (3.5 mm)
mini-Jack (3.5 mm)
PlugL-shapedL-shaped
Cable supplydual-sideddual-sided
Cable length1.2 m1.2 m
Cable typeroundround
Specs
Impedance16 Ohm16 Ohm
Frequency range5 – 24000 Hz8 – 22000 Hz
Sensitivity103 dB100 dB
Speaker size9 mm9 mm
Emitter typedynamicdynamic
General
Weight3 g3 g
In box
silicone tips
silicone tips
Color
Added to E-Catalogseptember 2017june 2014

Frequency range

The range of sound frequencies that headphones can reproduce.

The wider this range, the more fully the headphones reproduce the spectrum of sound frequencies, the lower the likelihood that too low or too high frequencies will be inaccessible. However, there are some nuances to consider here. First of all, let us remind you that the perceptual range of the human ear is on average from 16 Hz to 22 kHz, and for the complete picture it is enough for headphones to cover this range. However, modern models can significantly exceed these boundaries: in many devices the lower threshold does not exceed 15 Hz, or even 10 Hz, and the upper limit can reach 25 kHz, 30 kHz and even more. Such wide ranges in themselves do not provide practical advantages, but they usually indicate a high class of headphones, and are sometimes given only for advertising purposes.

The second important point is that a wide frequency range in itself is not a guarantee of good sound: sound quality also depends on a number of parameters, primarily the amplitude-frequency response of the headphones.

Sensitivity

Rated headphone sensitivity. Technically, this is the volume at which they sound when a certain standard signal from the amplifier is connected to them. Thus, sensitivity is one of the parameters that determine the overall volume of the headphones: the higher it is, the louder the sound will be with the same input signal level and other things being equal. However, we must not forget that the volume level also depends on the resistance (impedance, see above); moreover, it is worth choosing “ears” for a specific device first by impedance, and only then by sensitivity. In this case, one parameter can be compensated for by another: for example, a model with high resistance and high sensitivity can work even on a relatively weak amplifier.

As for specific figures, headphones with indicators of 100 dB or less are designed mainly for use in a quiet environment (in some similar models, the sensitivity does not exceed 90 dB). For use on the street, in transport and other similar conditions, it is desirable to have more sensitive headphones — about 101 – 105 dB, or even 110 dB. And in some models, this figure can reach 116 – 120 dB. and even more.

It is also worth noting that this parameter is relevant only for a wired connection according to the analogue standard — for example, via a 3.5 mm mini-...jack. When using digital interfaces like USB and wireless channels like Bluetooth, the sound is processed in the built-in headphone converter, and if you plan to mainly use this kind of application, you can not pay much attention to sensitivity.
Sony MDR-EX155 often compared
Sony MDR-EX15LP often compared