Ochuraku Co-donguri Shizuku Review – The Uncrowned King!

Review by Mhark Jhoshua Q. Torres

The Company

Ocharaku is an audio company based in Japan, they are focusing on Dynamic Drivers, Ocharaku aims to breakout from the growing trend of using multi Balanced Armature drivers. Ocharaku utilizes resonance chambers and other proprietary technologies to push the DD to their boundaries. Despite being unique and not joining the BA bandwagon the Ocharaku still remain unpopular in the audiophile realm except Japan.


The item was provided by one of the local sellers of Co-donguri, Mr. John Angelo Carandang for us to give our honest take with regards to the IEM.

The Ochuraku Co-donguri Shizuku

Co-donguri in Silver Moon Color Way

The Co-donguri’s body was patterned from “donguri” which is an acorn, it is a fusion of brushed steel and colored plastic at the end of the body. The Co-donguri is made by Surround while the licences, technology and design was from Ocharaku, given that, it still  doesn’t fall short in terms of build quality. The Co-donguri is quipped with tornado equilizer – a company pride that divides the path of the sound wave resulting to better sound (as per Ocharaku). It has non removable cable, 18 Ω impedance, 10mm dynamic driver, 200mW max input, and an output of 103dBSPL /mW.




The package is sub par to its price range, it comes with a small carton box as can be seen on the featured photo, a manual and product introduction and 3 pairs of Spinfit. The package is not bad at all it is just a bit lacking since it doesn’t have a carrying bag or pouch and more ear tips option.

Fit and Comfort

The Ochuraku Co-donguri can be worn two ways, first is the conventional way (hanging) and the second it the over the ear one which the cable goes around the wearer’s ear towards the ear. The comfort is what to be expect on bullet type IEMs, it is light and easy to plug in, I can’t feel it hanging around my ears and definitely no discomfort or fatigue even for 2 hours of listening. The isolation is okay, commute noise are still audible when it’s too loud nonetheless it is far better than earbuds or open back HPs.


Co-donguri X Ibasso DX90

The Co-donguri  has moderate sub bass depth and quantity, but the texture and quality is top notch (for the price tier), it’s not smooth and it packs a lot of details. The mid bass is there but is not presented forward, it has average quantity but has excellent speed and tightness. Every bass note is hit accurately and decays fast, it can definitely handle complex tracks for the decay is quick enough for bassy tracks. But the overall bass is not presented in punchy, impactful, energetic or fun manner making it sound linear, uncolored and a bit boring for EDM,Alt. Rock, and Metal songs, Believer of  Imagine Dragons sounds okay since I’m not a bass head at all but I don’t think bass heads will be satisfied with Co-donguri’s bass presentation. ‌


Lower mids packs pristine clarity and has moderate body to give male vocals justice. Sean Rowe’s Madman has enough warm and his low registers are well presented. The lower mids is laid back as compared to the bass. The upper mids is the center stage of the co donguri (for me), I never heard such vocals and guitar strumming under 5000 PHP ($100). Reese’s voice is so sweet without sounding hollow nor thin, it still has good amount of warmth in it. Another thing is that it is not presented in a smooth manner thus the mids is packed with good texture and details. The upper mids has same placement with the lower mids. It is sweet and intimate and perfect for acoustic, jazz, pop and folk genres, It has almost the same quality of the mids with my Simgot EN700 Pro. Once you play jazz or acoustic, you can’t escape the spell, Halie Loren’s Wild Trees sounds full, clear and just amazing, I never heard her voice like this before (I don’t know her yet back when I’m using my K5). ‌


Treble packs good sparkle, airyness and clarity. It has average extension, and placed a bit forward than the bass and mids, the quantity is just enough for me, in contrast to other reviews the highs doesn’t sound piercing at all, it decays pretty fast making it agile for metal and rock songs. It never sounded splashy nor sibilant, Co Shu Nie’s Asphyxia never made my head ache during the listening sesion with co donguri. Good sparkle, airy highs that helped to widen the soundstage and pretty fast decay. ‌

Sound Stage and Resolution

Sound stage is very wide and has good depth, Bottle It Up (Live) of Sara Bareilles sounds realistic as the imaging and the layering is on point for live tracks. The good thing is that the sound stage is wide when needed and can still be intimate when the track demans it, for example Live songs of Sara Bareilles sounds wide, while the EP tracks of Reese Lansangan still retain good amount if intimacy and sweetness. The lower end of the frequency in co donguri doesn’t pack a lot of details, the drum roll of Coldplay’s Everything’s not lost is not audible as compared to the Simgot EN700 Pro. The mids and highs on the other hand packs good details especially the highs. ‌

Sound Signature and Synergy


The Co-donguri seems to have a slightly bright sound signature. The mids is slightly laid back bass is not that forward as well while the treble being a bit forward than the mids and bass. The brightness of this iem is never on the piercing level I would suggest using flat/analytical dap because its not that bright and I think neutral dap will make it shine and let the tuning wow the users. ‌


TFZ Series 2 ‌

The TFZ S2 has better sub bass depth, energy and quantity but the texture and quality goes to the Co-donguri, same goes to the mid bass the S2 packs more punch, energy, depth and quantity it is also more forward than the bass of Co-donguri, Co-donguri still has an upper hand in details, texture, quickness, decay speed and quality. The mids has more clarity, details and body in the co donguri but the S2 is more forward, sweet and smooth. The highs in the S2 is more forward and detailed in contrast to the Co-donguri but it has better sparkle, decay speed, airyness and less aggressive than the S2. I’d choose Co-donguri any day even if it lacks energy and may sound to boring at times simply because it has fast paced tonality and the mids ate better by a mile. The bass may be better in TFZ s2 but Co-donguri’s bass is just enough for non bass heads (like me).


Co-donguri Silver Moon!

I’d say that this IEM is the uncrowned king of sub 3000 PHP ($60) or even sub 5000 PHP ($100), It has good bass presentation with very good quality and speed but lacks quantity and impact. Very good lower and upper mids, not too thick nor too thin to sound hollow, it is a bit distant but packs good details and pristine clarity but is placed a bit recessed or laid back. The treble has good sparkle, airyness, decay speed and extension, it never sounded piercing nor aggressive. It has commendable sound stage both depth and width, complex tracks can be tackled with ease and will not sound congested, details on the lower frequencies slightly lacking but the mids and treble are rich with details. Personally, I’ll crown this IEM as the king of sub 2500 PHP it fits my genre and DAP very well, I’d definitely recommend this over TFZ S2, Kinera Seed, Shozy Hibiki and KZ ZS10 assuming that the user is not bass head.

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