For manufacturing Sound Reality ® headphones, I use factory-made enclosures with headbands, which fit comfortably on the ears, are easily adjustable for height, and feature sufficiently large and elastic replaceable earcups

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Sound Reality ® dynamic headphones are made in so-called "open" and "closed" acoustic designs, as both types have their advantages and disadvantages, and the listener's choice is always a set of compromises

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In open-back headphones, one side of the driver plays into the listener's ear, while the other side of the driver is open to the surrounding environment

• Advantages: "more open," transparent and airy sound.

• Disadvantages: firstly, ambient noise is more audible to the listener; secondly, people around can hear the music almost as loudly as the listener themselves through the headphones

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In closed-back headphones, the outer side of the driver is sealed from the surrounding environment

• Compared to "open-back" headphones, "closed-back" ones have a slightly duller sound, but all instrument parts that dominate the low-frequency range sound more "tight and rapid-fire". This is especially evident in the formation of images of percussion instruments, bass guitar, and double bass—you hear a clearer strike, you better feel the musician's emotional state, with what force they hit the drum or pluck the string

• Another advantage of closed-back headphones is the isolation of the sound field created for the listener from the surrounding environment. The listener does not hear the noises around; and those around do not hear what you are listening to

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When manufacturing drivers for headphones, I use the same principles as when upgrading drivers for Sound Reality stationary home audio systems

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I also pay special attention to cable manufacturing, and all Sound Reality headphone models, both dynamic and planar, perform best with my cables