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#9038D

According to multiple headfiers requests: 3.5mm jack unbalanced output DAC+HPA 600mW@16ohm in the same case like #9038S with additional 5th operation mode

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Specifications(TBD):

Status:                            proto

Retail cost:                     TBD(***)

Materials:                       sandblasted/black anodized aluminum/laser mark/ES9038Q2M/AD8397

Dimensions:                   48x22x9mm


Weight:                           15g


Power:                             USB +5V/-5V power rails no internal battery, 170mA idle current, the device                                                                   contains up to >4000uF of capacitance but IOS/Android devices

                                         start OTG operation without Camera_Adapter and USB OTG Y-splitter                                                                               cable respectively


Input:                               USB-C, PCM up to 24b/192kHz


Output:                            standard unbalanced output 3.5mm jack, HW volume control .5db/step


Output impedance:       .05 Ohm@1000Hz Agilent U1733C

Output power:                >340mW@32Ohm@1kHz@THD=1%

Output power:                >600mW@16Ohm@1kHz@THD=1%

                                         measured at +.5dbFS level, typical PC USB2 port powered

Frequency response:   10-85kHz +.05/-.2db@ 24b/192kHz


S/N ratio:                      -123db(A) referenced to 3.399VRMS @32ohm THD+N = 1% @

                                       +.5dbfs typical PC USB2 port powered

DR AES17                     121db unweighted


THD@1kHz@-3dbFS   .00025% typical for Performance Mode 24b/44.1kHz@32Ohm

THD+N@1kHz@-3dbFS  <.0004% typical for Performance Mode 24b/44.1kHz@32Ohm

THD+N@1kHz@-3dbFS  <.0015% typical for Performance Mode 24b/44.1kHz@16Ohm

THD+N@1kHz@-3dbFS  <.0004% typical for Normal Mode 24b/44.1kHz@32Ohm

THD+N@1kHz@-3dbFS  .25% typical for SE Mode 24b/44.1kHz, almost only 2nd harmonic

Crosstalk:                     -125db@1kHz

Tech appendix

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Conventional PC USB2 port, 10Kohm load THD+N Home DAC mode

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