FIIO K11 USB DAC Compact Stationary Desktop Amplifier Balanced Configuration [Japan] Built-in (Black)

【Voltage Compatibility】 When using electrical appliances, please note that they are designed for Japanese voltage specifications (90-110V), so if you use them with a different voltage, it may cause a malfunction.

【Plug Type】 Our products use Japanese plug types (A or B type). Please use a conversion adapter if necessary.

【Important Note on Transformers and Adapters】 A transformer adjusts voltage to match your device’s requirements. A conversion adapter only changes the plug shape and does not adjust voltage. Using only a conversion adapter without a transformer may result in damage to the product.

【Liability】 We are not responsible for malfunctions or damages caused by improper use, such as operating the product without a transformer.

[About clocks that synchronize time via radio waves] The function of clocks that synchronize time via radio waves only works in the Japanese area. Please be careful. [Uses Cirrus Logic's DAC chip "CS43198" and supports 384kHz/32bit, DSD256 playback] The K11 uses Cirrus Logic's DAC chip "CS43198" which has low power consumption and excellent audio characteristics. "CS43198" is a Master HIFI DAC that achieves the strict standards set by the company to provide audio playback that is truly faithful to the recording. By adopting this chip, we have achieved performance of S/N ratio: 123dB or more and THD+N: less than 0.00035%. [Achieved 1400mW output with fully balanced headphone amplifier circuit] The K11 has a fully balanced headphone amplifier circuit and is equipped with two circuits, one for each left and right channel, resulting in a balanced output of 32Ω. Achieved high output of up to 1400mW when loaded and up to 250mW when loaded with 300Ω. Furthermore, in order to suppress power supply noise that adversely affects sound quality, we have adopted a power supply circuit design that supplies independent power to each block of the circuit. The power supplied from the external 12V power supply is kept clean by low-noise LDOs in charge of each block, adjusted to the appropriate amount, and then delivered to the components. [Three-stage gain control supports a wide range of playback environments from IEMs to headphones] The K11 has three gain levels: High, Mid, and Low, which can be set on the LCD display on the front of the main unit. Adjustment is possible. You can always enjoy music at a comfortable volume level by adjusting the gain according to the efficiency of the connected earphones or headphones. [Equipped with a variety of inputs and outputs and can be used as the center of an audio system] The K11 has digital input using a USB terminal, RCA coaxial terminal, and square optical terminal, analog output using an RCA terminal, and a 6.35 mm headphone terminal. It supports single-ended output using 4.4mm terminal and balanced output using 4.4mm terminal. Not only can it be connected to a PC, but it can also be connected to various digital devices to enjoy music with high-quality balanced connections, and can be easily integrated into the audio system you already own. [Display and knobs on the front allow you to intuitively change main unit functions] The K11 is the first FIIO stationary headphone amplifier to feature a display on the front. The high-contrast, highly durable VA display provides good visibility and can be lit at all times without burn-in. Visually check sampling rate, volume, gain, and output mode. The knob on the front is used to turn the power on/off, switch each input, operate the menu, adjust the volume, and other operations. You can select headphone output/RCA output exclusively by pushing the knob twice quickly, and each output can remember the last volume. You can select the appropriate output mode when connecting to active speakers or when connecting to an external amplifier as a pure DAC. [RGB Indicator Light on the Top Logo] The FIlO logo on the top of the K11 is illuminated with RGB lighting, allowing you to quickly identify the current audio sampling rate. Brightness, color and light pattern are all adjustable with knobs. [Sophisticated and simple housing design and available in two colors: black/silver] K11 is assembled from highly rigid aluminum alloy with careful processing of the material. It has a compact size of approximately 32mm in height and 143mm in width, so it can be placed neatly on your desk. Available in two colors, black and silver, you can choose according to your preference. K11 is an entry-level model of a compact, stationary headphone amplifier with a built-in DAC that has a slim body, abundant inputs and outputs, and high output. The K series, a stationary headphone amplifier with a built-in DAC that FIIO has developed over many years, has undergone constant evolution, and the latest model, the K11, has a completely new body design and a fully balanced headphone amplifier circuit with a drive power of up to 1400mW. It combines uncompromising audio playback quality. The LCD display allows intuitive operation of the main unit, making it a high-performance unit that blends in with your desktop space.