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

Product details

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

New and Upgraded Amp-9038D6K

According to multiple headfiers requests: 3.5mm jack unbalanced output DAC+HPA 200mW@40ohm in the same case as #9038SG3 and # 9038D. Like the previous prototypes, 9038D6K will work with Tweak app as well. The DAC has virtually zero noise modulation behaviour.

Classic Design with Laser-engraved Aluminum Case

The 9038D6K maintained E1DA’s classical compact design and weighs only 12g. The sandblasted and black anodized aluminum case is sturdy and lightweight, while the specifics are laser-engraved and resistant to wear and tear.

Portable Equipment for HiFi Enthusiasts

The lightweight 9038D6K has performed excellently and is perfect for HiFi enthusiasts. It is suitable for daily use and to be carried around to bring high-quality audio experience with you no matter where you go.

Smooth experience with correct usage

9038D6K contains a high-sensitive I/V stage that may cause audible noise when your phone uses LTE,4G, and 5G. Some newest hardware may have issues like "stuttering" with USB3(Macbook pro 2020, MS Surface 2020, Lenovo Carbone 2020, Acer SF313-52-71Y7 2020). USB audio-bridge manufacturer was informed about that and we are expecting the FW solution.

Specs:

Materials: Sandblasted/black anodized aluminium/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 2.75VRMS100% 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@1kHz@-.7dbFS BW 22-22kHz 118-120+db typical for 32b/44.1kHz@no-load THD@1kHz@-.5dbFS BW 22-22kHz <.0001% typical for 24b/44.1kHz@no-load THD+N@1kHz@-2.5dbFS BW 22-22kHz .00018%, SINAD 115db typical 24b/44.1kHz@32ohm THD+N@1kHz@-7dbFS BW 22-22kHz .0005% typical for 24b/44.1kHz@16ohm(-6dbfs corresponds 120mW)

Crosstalk: -135db@1kHz no-load,-82db@1kHz 32ohm load