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The Lightning cable is captive, 65.5 mm long, and links the dongle to an iPhone or an iPad with no adapter. The KA11 measures 44.5 x 9.7 x 10.5 mm and weighs 8.5 grams, in an aluminium-magnesium alloy shell. There is no battery and no switch: it draws its power from whatever it is plugged into.
The converter is a Cirrus Logic CS43131, backed by an SGM8262 operational amplifier. The pair accepts up to 384 kHz at 32-bit as well as DSD256, and the KA11 is Hi-Res Audio certified. The circuit board is immersion gold-plated and the conductors are palladium-plated oxygen-free copper.
The 3.5 mm socket takes single-ended earphones and headphones. Into 16 ohms it delivers 245 mW per channel; 200 mW into 32 ohms and 22 mW into 300 ohms. The stated signal-to-noise ratio reaches 125 dB into 32 ohms, for a noise floor below 1.7 microvolts, an output impedance under 0.7 ohm and distortion under 0.0006%.
Data sheet
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