The FiiO K7 BT is a headphone amplifier and DAC in one. It serves as a link between your computer, music player, smartphone, etc., as the input source, and active speakers or headphones as the output source. This allows you to benefit from a high-quality and space-saving audio system. The THX AAA 788+ amplifier technology achieves an impressive output of up to 2000 mW, effortlessly driving any earbuds or headphones while generating captivating sound. The two AK4493S digital-to-analog converters from the Japanese manufacturer AKM process high-resolution audio signals up to 32-bit and 384 kHz, as well as DSD. The pleasantly warm timbre of these DACs with their detailed fine resolution allows you to rediscover and fall in love with your music. The numerous connection options make the FiiO K7 BT an interface for your audio equipment. Computers, music players, smartphones, tablets, etc., can be connected via the USB input, RCA inputs, as well as coaxial or optical connections. For wireless reception, the K7 BT is equipped with Bluetooth and supports all common formats such as aptX, AAC, LDAC, and SBC. RCA outputs are available for connecting speakers. A headphone can be connected to the front of the K7 BT via the 6.3 mm or the balanced 4.4 mm jack. On the front of the FiiO K7 BT, there is a control for two gain settings, allowing headphones with different sensitivities to be optimally operated. Another switch allows you to toggle between input sources (USB, optical, coaxial, line, Bluetooth). The large metal volume knob on the front of the K7 BT allows for precise volume adjustment. With its solid aluminum housing in a discreet black finish and compact dimensions, the FiiO K7 BT fits perfectly on a desk as well as in a HiFi rack.