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Dvun Audio

E1DA 9038D USB Headphone Amp 3.5mm jack unbalanced output DAC+HPA

E1DA 9038D USB Headphone Amp 3.5mm jack unbalanced output DAC+HPA

Regular price $99.99
Regular price $0.00 Sale price $99.99
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Good News for Japanese audiophile you can order it from our amazon now!


Note: Before you buy this product please read the FAQ carefully. If you have any comments or suggestions please join our discord channel to discuss it with Ivan.


>Class-leading ES9038Q2M decoding chip.

>High-performance OPA1622 OPA1602 amplifier chips.

>PCM decoding up to 32-Bit/384kHz DSD up to DSD256 natively.

>Premium components including Susumu resistors Murata COG capacitors AVX tantalum capacitors Taiwanese connectors.

>Sandblasted black anodized aluminum housing.

>3.5mm headphone output.

>Output Power: 180mW @ 32 Ohms.

200mw @ 40 Ohms.

120m@ @ 16 Ohms.

>SNR: -125dB.

>THD+N: <0.00018%.

E1DA has released its latest USB Type-C DAC/AMP the E1DA 9038D. It is the fourth iteration of their highly acclaimed E1DA 9038S portable DAC/AMP. The latest E1DA 9038D features an unbalanced 3.5mm headphone output port with humongous output power and super clean decoding capabilities.

High-Grade Decoding Chip:-

The E1DA 9038D features an industry-leading ES9038Q2M decoding chip with a high-qualityComtrue CT7601CR custom FW USB bridge. It is capable of decoding PCM up to 32-Bit/384kHz and DSD up to DSD256 natively with utmost precision and quality. It ensures the users get the best sound quality output with ultra-low distortion and no background noise.

Small Size Premium Built:-

The E1DA 9038D is an elegantly built product. It features the same sandblasted black anodized aluminum housing as the previous-gen 9038S that has super-premium smooth looks. The device doesn't heat up even after long usage hours.

High-Quality Premium Components:-

The E1DA 9038D is equipped with high-grade premium components. From the powerful Sabre decoding chip to the capacitors and resistors on the board everything is of top-notch quality. It featuresSusumu resistors Murata COG capacitors AVX tantalum capacitors and Taiwanese connectors just to name a few. The usage of these premium components ensures supreme sonic performance.

Power House For Your Power Hungry Earphones:-

The E1DA 9038D has an unbalanced 3.5mm headphone output port with humongous output power. It has a power rating of up to 200mW @ 40 Ohms of the load. It will easily power your earphones earbuds with ultimate output quality.


According to multiple headfiers requests: 3.5mm jack unbalanced output DAC+HPA 200mW@40ohm in the same case as #9038SG3. The same as 9038SG3 9038D will work with Tweak app.


Status: pre-release 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 95mA idle current the device contains >4000uF 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% 200mW@40 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 S/N ratio: -125db(A) referenced to 2.75VRMS DR AES17 125db(A) THD+N@1kHz@-.5dbFS .00014% SINAD 117db typical for 24b/44.1kHz@no-load THD@1kHz@-.5dbFS <.0001% typical for 24b/44.1kHz@no-load THD+N@1kHz@-2.5dbFS .00018% SINAD 115db typical 24b/44.1kHz@32ohm THD+N@1kHz@-7dbFS .0005% typical for 24b/44.1kHz@16ohm(-6dbfs correspods 120mW) Crosstalk: -135db@1kHz no-load -82db@1kHz 32ohm load

Warning: 9038D contains a high-sensitive I/V stage that may cause audible noise when your phone uses LTE 4G 5g. Some newest hardware may have issues like stuttering with USB3(Macbook pro 2020 MS Sufrrase 2020 Lenovo Carbone 2020 Acer SF313-52-71Y7 2020). USB audio-bridge manufacturer was informed about that and we expecting the FW solution.

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

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

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