Hidizs MD4 4 Balanced Armature Drivers


The Build

Right off the bat, I was impressed with the packaging of MD4. My unit came with an arsenal of tips selection and some accessories which will prove useful for the longevity of usage.

As with the common practices for IEM of this pedigree, MD4 comes also with premium SPC cable made of 60 high-purity silver wires + 60 high-purity oxygen-free copper in twist braid formation. The cable itself terminated in a 3.5mm Stereo Plug which actually looked so cute for being bantam length and adorned with gold circles. Hidizs official website does not mention the option to select 4.4mm or 2.5mm BAL options, however for my own usage, 3.5mm is more than enough. The IEM side termination uses classic 0.78mm pins, QDC style.

hidizs md4

Tuning Switches

Let's have a look at the tuning switches a bit more. These sorts of options most of the time can be seen on top-tiered multi-drivers or hybrid IEMs. At the price point of MD4, I think it is quite a luxury option to have - provided that the switches perform as intended. Well, I am happy to say that the switches do work!.

As can be seen in the pic above, there are four selectable tunings:
- Balanced
- Warm
- Treble
- Bass

After spending some time fiddling with the switches, I settled with the "Treble" option. To my ears that tuning set offers something which I regard as properly balanced without sacrificing upper-range sparkle and shimmer. However, I can imagine that users that are more Treble sensitive, may find the Balanced set to be a bit more dampened on the upper frequencies brightness. Frankly, I personally don't like the sound of both "Warm" and "Bass", they just sounded too colored and dark for my taste - I am a Diffused Field Neutral junkie after all and the "Treble" option is just right for me. Despite being labeled as Treble, it actually offers great balance from one end of the spectrum to the other end. I will talk more on this later. Suffice to say, this feature Hidizs bringing into the price point of MD4 is something very welcoming. Few years ago, this sort of feature would cost us in the region of over $500....

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