FiiO K17 - AK4191 AK4499EX2

The FiiO K17 is the first to feature a discrete amplifier circuit utilizing an OP transistor currentdriving headphone amplifier design It is equipped with the On Semiconductor MJE243G253G classic complementary pair enabling highcurrent lowimpedance output The balanced output power reaches up to 4000mW4000mW effortlessly driving both large headphones and inear monitors The sound is smooth natural and melodious delivering a pleasant listening experience The device uses the AKM flagship DAC chip combination AK4191 AK4499EX2 with each AK4499EX handling one channel This is paired with an 8channel to 4channel LPF design to reduce commonmode interference resulting in better separation and dynamics Additionally it features a fully separated digitalanalog structure based on a new design technology incorporating the newly developed DWA ROUTING technology to further purify the background and enhance resolution The FiiO K17 is equipped with the professional DSP chip M21586Q and the highperformance ADC ES9821Q complemented by a customdesigned ultralow phase noise femtosecond crystal oscillator It offers a 31band professionalgrade highprecision lossless PEQ adjustment function across all input modes This allows for simulation or correction of headphone frequency response curves The FiiO K17 supports multiple input options including singleended line input balanced line input USB decoding Bluetooth decoding optical decoding and coaxial decoding The USB decoding uses the XMOS 16core chip XU316 supporting 768kHz32bit DSD512 and full MQA decoding Bluetooth decoding is powered by the Qualcomm QCC5125 chip featuring Bluetooth 51 and supporting aptX HD aptX Adaptive LDAC and other codecs For streaming it supports Roon Ready and AirPlay giving you access to a vast array of streaming sources Local playback is supported via external USB drives and portable hard drives allowing you to enjoy your precious collection of audio files The K17 features a customdesigned 393inch LCD screen allowing for quick switching between various settings and functions via touch controls It also includes five independent control knobs supporting onebutton standby and enabling fast adjustments for volume gain output and more The device comes with an infrared remote control for convenient longdistance operation allowing you to easily switch between work modes select EQ settings and adjust volume