SKU: 78565801962

E1DA 9038D6K USB Headphone Amp 3.5mm Jack Unbalanced Output DAC+HPA

$121.50 $135.00
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Description

E1DA 9038D6K USB Headphone Amp 3.5mm Jack Unbalanced Output DAC+HPANote: Before you buy this product, please read the FAQ carefully. https: e1dashz. wixsite. com index faq Welcome to join our discord channel. https: discord. gg U9Z28KC #9038D6K According to multiple headfiers requests: 3. 5mm jack unbalanced output DAC+HPA 180mW@32ohm in the same case as #9038SG3. The same as 9038SG3, 9038D6K will work with Tweak app. The DAC has virtually zero noise modulation behavior. Specifications: Status: Production Materials:

Note: Before you buy this product, please read the FAQ carefully.

https://e1dashz.wixsite.com/index/faq

Welcome to join our discord channel.

https://discord.gg/U9Z28KC

 

 

#9038D6K

According to multiple headfiers requests: 3.5mm jack unbalanced output DAC+HPA 180mW@32ohm in the same case as #9038SG3. The same as 9038SG3, 9038D6K will work with Tweak app. The DAC has virtually zero noise modulation behavior.

Specifications:

Status: Production

Materials: Sandblasted/black anodized aluminum/laser mark/ES9038Q2M/OPA1622/OPA1602

Susumu resistors, Murata C0G caps, AVX tantalum caps, Taiwanese connectors
Dimensions: 48x22x9mm
Weight: 12g
Power: USB +5V rail no internal battery, 105mA idle current, the device contains >6000uF of capacitance for the power rails filtering
Input: USB-C, PCM up to 32b/384kHz, DSD256
USB bridge Comtrue CT7601CR custom FW
Output: Standard unbalanced output 3.5mm jack, HW volume control .5db/step
Output impedance: .07 Ohm@1000Hz Agilent U1733C
Output power:
180mW@32 Ohm@1kHz@THD=1%
120mW@16 Ohm@1kHz@THD=1%
Measured at +.5dbFS level, typical PC USB2 port powered
The hot unit produces less power
Frequency Response: 5-80kHz +.05/-1db@ 32b/384kHz
SNR=DR@50MHz_MCLK:  126db(A) typical, referenced to 2.75VRMS

100% units are calibrated with the result printed on the case, >124db(A) is normal grade
Please note, any user with Cosmos APU may calibrate 9038D by themself for particular headphones.
INAD@[email protected] BW 22-22kHz 118-120+db typical for 32b/44.1kHz@no-load
THD@[email protected] BW 22-22kHz <.0001% typical for 24b/44.1kHz@no-load
THD+N@[email protected] BW 22-22kHz .00018%, SINAD 115db typical 24b/44.1kHz@32ohmTHD+N@1kHz@-7dbFS BW 22-22kHz .0005% typical for 24b/44.1kHz@16ohm(-6dbfs correspods 120mW)
Crosstalk: -135db@1kHz no-load,
-82db@1kHz 32ohm load
The Windows driver is here.
FW tools are here
Warning: 9038D6K contains a high-sensitive I/V stage that may cause audible noise when your phone uses LTE,4G,5G.
 

Tech appendix

Conventional PC USB2 port, 10Kohm vs 32ohm loads THD+N

 

Conventional PC USB2 port, 10Kohm load THD+N vs time

 

Conventional PC USB2 port, 32ohm load THD+N vs time

 

Conventional PC USB2 port, AES17 Dynamic Range A-weighted vs time

 

Frequency response PCM384 Slow Lin. Phase filter 10-40000Hz at -0.2db
 

 

Nearly ideal square wave 1kHz PCM384 Slow Lin.Phase filter at 200MHz BW scope

 

Square wave 1kHz PCM192 Slow Lin.Phase filter at 200MHz BW scope

 

Square wave 1kHz PCM96 Slow Lin.Phase filter at 200MHz BW scope

 

Square wave 1kHz PCM44.1 Slow Lin.Phase filter at 200MHz BW scope

 

24b/44.1kHz 1kHz -0.5dbfs FFT no load

 

24b/44.1kHz 1kHz -2dbfs 150mW FFT 32ohm load

 

24b/44.1kHz 1kHz -2dbfs 40mW FFT 32ohm load

 


24b/48kHz 12kHz -2dbfs FFT no load


 

 

 

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
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  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 78565801962

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4.2 ★★★★★
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Lex
Grantham, US
★★★★★ 5
Great sunscreen
Size: 2.82 Fl Oz (Pack of 1)
No white filmy cast. Soothing and easy to apply.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 6, 2026
J
JEFF
Lexington, US
★★★★★ 5
Beef Tallow Sunscreen
That dry, stretched sensation that I sometimes get from using other sunscreens was not something that I experienced with this one. On the contrary, I had the impression that my skin remained supple and pleasant throughout the morning. I used it prior to going about my errands, having a drive, going for a stroll outdoors, and spending time at the park. To my satisfaction, I did not feel the need to quickly apply another moisturizing lotion on top of the one I was using in order to restore the natural feel of my skin. Simply said, it made it simpler for me to utilize on a daily basis. When I wore it for a longer period of time, I also paid attention to how it felt on my face. Even though I wore it on a number of days when the temperature was high, I did not experience any discomfort as the day progressed. Despite the fact that I was aware that I was wearing sunscreen, I did not feel any discomfort or want to wash my face straight away with it. Because I am quite particular about the products that I use on my face, I found that to be really helpful. In addition to having a sunscreen that is dependable, I want it to be something that I can really endure for a considerable amount of time.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 9, 2026
K
Kate
Los Angeles, US
★★★★★ 5
The Best Way to Keep My Skin Happy Under the Sun
I am so happy that I found this special white cream because it is the best helper for my face and arms when I am playing outside in the big bright sun. I keep the bottle right near my sink so I can put it on before I go out to play, and it is very easy to use because the cream feels very smooth and soft like butter when I rub it on my skin. Sometimes other white creams feel very chalky or yucky like flour, but this one is a great deal for the price because it blends in so well and it does not leave a big white ghost face on me once I rub it in. It feels very simple and clean on my skin and it does not have a scary or strong smell, which makes me very happy because it does not feel greasy or oily like a piece of pizza. Even when I put more on later in the day, it does not clog up my skin or feel heavy like a thick blanket, so it is a wonderful value because I can use it all day long and stay comfortable. The tube is a perfect size to throw in my backpack or my travel bag when we go on a trip, and it feels very strong and tough like it will last a long time without the cap breaking off. It is a very practical and smart tool for my skin because it forms a strong layer that I can see at first to make sure I am safe, and it feels much better and more dependable than thin lotions that disappear too fast. I think everyone who likes to be outdoors should get this because it is durable, it works perfectly to keep me safe, and it is so simple and easy to use that it never gets in the way of my fun!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 14, 2026
A
Aurora
Grantham, US
★★★★★ 5
Comfortable to Wear and Easy to Use Every Day
The texture was the first thing I felt. First application feels rather rich but unexpectedly distributes easily throughout the skin. I was worried it would feel heavy, but it blended in more readily than I thought and didn’t leave my skin feeling too oily afterwards. I love that you can use it on the body and face too. One product for the entire family is easier and saves room when packing for trips or holidays. I have used it on myself and my kids when we go out and it has been comfy for all of us to wear. Another thing I appreciate is my skin feels hydrated after using it. Love things that make my mornings easier on hectic mornings. The mixture is smooth and pleasant to wear all day long and does not feel sticky. The container is functional and simple to throw in a beach bag or handbag. I have brought it to soccer games, trips to the playground, family picnics and it has been no problem.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 4, 2026
A
Amazon Customer
Louisville, US
★★★★★ 5
Less cast and the zinc scent is mild.
I use sunscreen regularly. One of the aspects I do not like is the white cast I get from zinc-based SPFs. This one is zinc-based but it has tallow and PDRN. I want to see if they make any difference when it comes application and feel. MY EXPERIENCE WITH THE PRODUCT 1. I received Mystic Orchard’s beef tallow sunscreen with PDRN. Comparing its value, I think the volume is pretty good. I received 2.8 ounces. 2. When it comes to scent, I smell the metallic scent but it is not as bad as the one I have been using for swimming. It is there, but pretty faint. 3. You can tell by the sheen that it is zinc-based. It has the same consistency. 4. What I noticed though is that the white cast is not too bad. It blends fast with the tallow. 5. I like tallows because they contain fat-soluble vitamins like vitamin E for some antioxidants. 6. The cica is nice too for those who need a calming ingredient with their sunscreen. 7. I think this would be good for when going out. I do not think I will be using it for swimming since it is mild in scent and cast. Better to use it elsewhere than just for swimming. OVERALL IMPRESSION: I think that this SPF sunscreen with tallow and PDRN is cost-effective and worth its value if you want a zinc-based sunscreen with less cast and milder scent.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 21, 2026

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