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E1DA PowerDAC v2

  • Small but Powerful! You can call it USB DAC + Headphone amplifier(HPA) >600mW@15ohm but actually, PowerDAC has no HPA at all. Yes, PowerDAC V2 can, as an example, drive LCD3 with 600mW but only as powerful enough DAC, no analog amplification and no feedback are implemented there
  • It's a quite similar to Fully Digital power Amplifiers(FDA) like Sharp SM-SX100(probably earliest FDA), TACT-Millennium, Lingdorf, Wadia etc $5-10K legendary toys. PowerDAC V2 uses the same or similar Ti digital PWM modulator chip TAS5558 but of course different output stage for headphone
  • HQ External DAC for your Devices. PowerDAC V2 doesn't need drivers to convert stream PCM up to 24/192 from PC/Mac. iOS, Android or Linux, however, if you wish to get full control of the built-in DSP, you need to install iOS or Android app
  • Device Control through IOs and Android. Volume slider with classical Fletcher–Munson loudness curves. Familiar HiFi Bass/Treble sliders. Intuitive controllable filters i.e. 7 parametric EQs, left/right gestures control frequency, up/down gain, zoom in/out Q-factor. Also available LPF/HPF and APF for phase alignment and text form Biquad control just in case(actually, it comes from another my project HiFiTOY crazy-tiny 250W@4ohm PowerDAC where LPF/HPF/APF needed for bi/tri-amping)

Weight: 68g
Dimensions: 75x45.5x19mm
Materials: sandblasted/anodized aluminum, mirror polished stainless steel with laser marking
Power: USB 5V power rail no internal battery, 250mA idle current, the device contains up to 5000uF of capacitance and IOS/Android devices can start OTG operation only with Camera_Adapter and USB OTG Y-splitter cable respectively
Input: USB PCM up to 24b/192kHz Output: digitally generated PWM 384kHz + passive LC demodulation balanced output 2.5mm jack 5mm shaft stopper, A&K pinout Output impedance: 1.5Ohm@1000Hz FFT flat top -6dbFS 32Ohm/open load, -.4db drop
Output power: >320mW@32Ohm@1kHz@THD=1%
Output power: >580mW@16Ohm@1kHz@THD=1% measured in 24b/44.1k mode +.6dbFS level, typical PC USB2 port powered. In case USB power-splitter aka USB-C Y-cable used i.e. USB data goes from Android and 5V power rail from 5.2V 2A charger the max power will be seriously higher see tech plots in the appendix
Frequency response:20Hz-20kHz +/-.2db(+/-.15db typical) 10Hz-30kHz +/-.5db(+/-.3db typical) 2.5Hz-46kHz +/-3db
S/N ratio: -108db(A) (-109db(A) typical)
THD+N@1kHz@0dbFS < 0.05%
THD+N@1kHz@-3dbFS < 0.03%
THD+N@1kHz@-6dbFS < 0.02%
THD+N@1kHz@-10dbFS < 0.01%
THD+N@6.3kHz@-10dbFS 0.01% typical
THD+N@100Hz@-10dbFS 0.03% typical(depends on USB power quality)
THD+N@1kHz@-20dbFS 0.01% typical
IMD 19kHz(-10dbFS)+20kHz(-10dbFS) -80db
typical (THD and IMD measured with 32ohm load in 24b/44.1k mode) Crosstalk: < -92db@1kHz

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