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E1DA PowerDAC V2.1 With Balanced (2.5mm) and Unbalanced (3.5mm)
E1DA PowerDAC is a highly efficient DAC device that is changing the face of Hi-res USB DAC devices with high-performance characteristics. PowerDAC series by E1DA always featured a balanced 2.5mm output port but with their latest E1DA PowerDAC V2.1, they have now included a 2.5mm to 3.5mm adapter to use unbalanced headphones with the device. They have also modified the HPToy application on both iOS/Android platforms with a switch for three different output modes, Balanced, Unbalanced, and Unbalanced boost.
– PowerDAC V2.1 features a new CT7601 Comtrue USB audio Bridge. – PDV2.1 has a soft-start function to avoid high-inrush, in fact users can use it with any Android phone without Y-Splitter. – Three output options that can be selected via the HPToy application, Balanced, Unbalanced, Unbalanced Boost. – Balanced: It is the same as the original PowerDAC V2, balanced 2.5mm TRRS with an output power of up to 600mW/channel.
– Unbalanced: Users can switch this mode on through the HPToy application. In this mode, users can safely use their unbalanced earphones/headphones using E1DA 2.5-3.5mm adapter with the PowerDAC V2.1. Output power in this mode is low as compared to the balanced mode.
– Unbalanced Boost: Users can use their single-ended earphones/headphones in this mode similar to the Unbalanced mode, but this mode offers complete 600mW power as with the balanced mode but with some crossfeed effect.
SPECIFICATIONS: Materials: sandblasted/anodized aluminum, mirror polished stainless steel with laser marking Dimensions: 75x45.5x19mm Weight: 68g 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 Frequency response: 20Hz-20kHz +/-.2db(+/-.15db typical) 10Hz-30kHz +/-.5db(+/-.3db typical) 2.5Hz-46kHz +/-3db