ISN D10 review : Love of bass and different other things


ISN SC4 ($110):- What is an upgrade to the stock SPC cable? A better SPC cable with pure silver and single crystal strands. The first thing that comes to attention is the bigger stage size. It feels much more expanded in every direction without messing up the distribution of instruments. The bass get deeper with slightly better sub-bass rumble while the mid bass sheds some body delivering equally good amount of texture and details. The bigger change comes with the not anymore V shaped mid range. The Vocals are a bit more forward, more in line with the rest of the spectrum. The whole mid range sounds slightly more organic and textured. Treble gains some maturity with better control over notes and the bigger stage makes it much more enjoyable. The SC4 brings more details and accuracy with much better contrast between background and foreground instruments.

SC4 is a fitting upgrade for any MMCX IEM.


VS BQEYZSpring 2 ($169):-

The BQEYZ earphone is a massive upgrade to the spring 1 and is one of the best earphones of this year. The Tri hybrid earphone has better resolution and micro details and comes in a metal jacket.

The lower end is smaller with slightly lesser sub-bass extension but still have nice rumble, The mid bass is slightly smaller too. The mids and vocals are much more resolving with a more forward presentation. The level of micro details is just outstanding. The contrasty nature gives it excellent background micro details. The treble region is slightly less extended and is slightly dull in comparison. Layering and separation is excellent but the notes are kind of lackluster and pale. The stage size feel much bigger at first, the width and height is as big as it gets but the depth feels la bit lacking and most of the stage is placed inside the head.

Picking one is tough, the mid forward vs V shaped can’t be decided with a winner. It comes down to preference.

VS TSMR 2 ($169):-

The dual BA TSMR 2 is a more balanced IEM with intimate vocals with slightly better texture. It houses 3 switches which can alter the sound a bit if needed. The 2 has overall better micro details and is more contrasty.

The lower end is much smaller with bass body. The sub-bass not much rumbly and the extension is not as deep as the D1o either. The mid bass give it volume but is still much smaller in volume and the impact is not par. The vocals and mids are much forward and have better texture and resolution, much similar to the Spring 2 while rest of the instruments are slightly on the dull side. Same case with the treble, it has good details and enery but the D10 does better with energy and crispiness. Stage size of the 2 is wide and tall but lacks depth.

Vs DB Monroe Pro:-

Similar sounding IEMs with more slightly more resolution on the Dual DD Monroe Pro.


If amount of details and a balanced sound is what you are looking out of an IEM, just look away. It has good amount of details but the lower end is nowhere close to being balanced. What the D10 does is it maintains nice transparency while keeping the presentation fatigue free and musical when compared to most of its competitor.

The slightly V shaped sound is not for everyone but is the most popular signature, loved by many and the D10 will please a lot of users too.


  1. Lot of bass with plenty of sub-bass presence. Excellent for bass lovers.
  2. Good amount of details with both mids and treble.
  3. Very good stage size.
  4. Build quality is excellent, fits perfectly.
  5. Pairs excellently with mobile phones.
  6. Very good cable.


  1. Could have been a bit more accurate and textured.



Suman Sourav Meher

Suman Sourav Meher

My humble audiophile journey started in 2010, when I was in college, where I fell in love with the elements, nuances, and variations of this mesmerizing world. The ability of tiny earphones to recreate amazing sounds made my bad days tolerable and good days better! Now I am a full-time audiophile with a preference for musical tracks, especially vocals and engaging ones. I must admit I am addicted, but not to drugs or alcohol, but to earphones. Come join me as I share my experiences, bad or good, and let’s have some fun!


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