Seahf EG009 – Review

Seahf EG009

Seahf EG009

| 10 mm Driver | 8 mm Driver |

? The Seahf EG009 review will run them through our tests and share the results with our readers. The Seahf EG009 are very nice looking earphones with a custom and sport like design which are meant to we worn with the cables around and above the ears like the KZ ZST, KZ ZS3, Sound Intone E6QKZ W1 Pro, KZ ZS2 or the KZ ED12. The Seahf EG009 hold inside two dynamic drivers with fair sizes of 10 mm and 8 mm, the housings are transparent and let you clearly see the inner guts of them including the two dynamic drivers. This configuration allows them to independently use each dynamic driver for different audio frequencies, with the larger 10 mm dynamic driver taking care of lower frequencies (sub-bass and mid-bass) while the smaller 8 mm driver takes care of mids and highs. The cables are detachable with the very known MMCX connection type, the same that is used in earphones such as the amazing Pioneer SE-CX8, Pioneer SE-CX9 and Senfer 4in1. Cable provided is sturdy and textured with a nice durable feel, 45 degree angled stereo connector, memory cable and an optional 1-button control + microphone. Detachable cables are always a great feature that provide the possibility to replace the cable in case of damage, utilize and select among different type of cables with different finish or cabling material and also to have the possibility to add features such as cables with more complete mic/controls or even with a bluetooth enabled cable. You can buy the Seahf EG009 with or without the control/mic and you can get it in: black, red, blue or combined red and blue which is pretty cool (like the one that we own)

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Seahf EG009 - Review

Tests & Scores



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Accessories & Packaging

The Seahf EG009 do not have a packaging but to compensate for that they are sold with a very large variety of accessories: a carrying case, cable clip, 3 black and blue eartips and 3 black and red eartips.



Bass & Sub Bass

Mid-bass coming from the double dynamic driver of the Seahf EG009 is very punchy and sub-bass has great depth while not muffling the whole sound signature. Bass of these earphones will make happy anyone looking for fun and very energetic bass. An EQ strongly added mid-bass punch and depth while still not getting boomy. Under our extreme bass test the Seahf EG009 were able to take up to a 41% of a Fiio E12 amplifier’s maximum power (high gain, bass boost on) with a custom basshead EQ applied. The results were an exponential increase of punch and sub-bass with a basshead impact and rumble way above the baseline KZ ATE but was unable to reach the basshead capacity of the Best Basshead Earphones Charts like the Sony MDR-7550/800ST, Plextone X41M, Xiaomi Mi Quantie Pro Hybrid, Senfer 4in1, Plextone X50M, Sony MDR-XB50AP, Pioneer SE-CX8, etc. As what happened before in other of our double dynamic driver earphones reviews such as the Xiaomi Mi Pro HD, the 2nd smaller dynamic driver restricts how much amplification they can take while the bigger dynamic driver shows that it could handle a higher amplification power.


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Mids & Vocals

Mids are very warm, laid back and recessed on lower mids, lower vocals sound somewhat congested. Higher mids are not harsh at all. Overall, mids could work for people that like very warm and smooth mids and don’t care about them sounding clear and spacious. Applying an EQ, lower mids reduce noticeably their recession and lower vocals congestion, higher mids become harshy.



Highs & Treble

Highs of the Seahf EG009 are recessed with almost no detail or definition and darkish sounding. At the same time, very high notes become piercing occasionally and sibilance is also present. With an EQ, some darkness is removed but piercing highs and sibilance become very strong and frequent to the level of making them quite unusable.



Sound Leak

Sound leaking out of the Seahf is noticeably reduced and could be inaudible on normally noisy situations while using moderate volume levels. With higher volume or in situations of extreme silence the sound that leaks out could be heard by nearby people.



Sound Isolation

The Seahg EG009 are very capable of isolating from surrounding noises even when setting low volume levels, with higher volumes their performance becomes outstanding offering an almost perfect isolation.



The custom like shape, light weight and detachable cable adds great comfort to the Seahf EG009 but at the same time the specific shape that they have does not provide as much comfort as other similarly styled earphones like the KZ ZT, KZ ZS3, KZ ED12, Sound Intone E6 or the QKZ W1 Pro.


Response to Equalization

The Sehaf EG009 responded very well to some custom EQ but not so great to others. Bass and sub-bass frequencies were highly enhanced without introducing issues; mids sounded much less congested and recessed but higher mids started to sound harshy; highs were the worst regarding EQ being able to remove some darkness but generating strong sibilance and intolerable piercing highs.


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Scores Scores

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Frequency Response (raw)

SEAHF EG009 Frequency Response

SEAHF EG009 - Frequency Response
SEAHF EG009 – Frequency Response



TypeDouble Dynamic Driver
Driver Unit10 mm + 8 mm Driver
Sensitivity103 dB
Power CapacityUnknown
Impedance32 0hms
Frequency Response18-22,000Hz
CordY-type, Detachable MMCX round cord
Cord Length1.2m
PlugStereo mini plug 45 degree
Weight (Without Cord)Unknown
Supplied Accessories3x black and blue eartips; 3x black and red eartips;cable clip; carrying case

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We highly discourage anyone from trying to apply our testings to your own earphones, the risk of damaging or permanently breaking your iems is absolutely probable to happen. With our standardized equalization and amplification tests we push the limits of the earphones to the extreme. If anyway you decide to do so, we cannot be held responsible of the damage done to your equipment. Do it at your own risk.

Seahf EG009