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

[Cirrus Logic CS43198 DAC Chip Supports 384kHz/32-bit, DSD256 Playback] The K11 utilizes the Cirrus Logic CS43198 DAC chip, which offers low power consumption and excellent audio characteristics. The CS43198 is a Master HIFI DAC that meets the company's stringent standards for delivering audio reproduction that is truly faithful to the original recording. This chip achieves a S/N ratio of over 123dB and a THD+N of less than 0.00035%. [Fully balanced headphone amplifier circuit achieves 1400mW output power] The K11 features a fully balanced headphone amplifier circuit, with two amplifiers, one per left and one per channel, achieving a high output of 1400mW at a 32Ω load and 250mW at a 300Ω load. Furthermore, to suppress power supply noise that can adversely affect sound quality, the power supply circuit design provides independent power supplies for each circuit block. Power supplied from the 12V external power supply is kept clean by dedicated low-noise LDOs for each block, and then appropriately regulated before being distributed to the components. [Three-Level Gain Control for a Wide Range of Playback Environments, from IEMs to Headphones] The K11's front LCD display allows you to adjust the gain in three levels: High, Mid, and Low. This allows you to adjust the gain to suit the efficiency of the connected earphones or headphones, so you can always enjoy music at a comfortable volume level. [Versatile Inputs and Outputs for Use as the Heart of Your Audio System] The K11 supports digital inputs via USB, RCA coaxial terminals, and rectangular optical terminals, analog output via RCA terminals, single-ended output via a 6.35mm headphone jack, and balanced output via a 4.4mm jack. In addition to connecting to a PC, you can connect it to various digital devices to enjoy music with high-quality balanced connections, or easily integrate it into your existing audio system. [Front-Mounted Display and Knob Allow Intuitive Control of Unit Functions] The K11 is the first FIIO desktop headphone amplifier to feature a front-mounted display. The high-contrast, durable VA display provides excellent visibility and is always-on, preventing burn-in. Visually check sampling rate, volume, gain, and output mode. The front-mounted knob is used for power on/off, input switching, menu navigation, volume adjustment, and other operations. A quick double push of the knob selects headphone output or RCA output exclusively, and the last volume setting for each output is memorized. Select the appropriate output mode for connecting to active speakers or as a pure DAC to an external amplifier. [RGB Indicator Light on the Logo at the Top of the Unit] 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 the knob. [Sleek, simple design and available in two colors: black and silver] The K11 is constructed from a highly rigid aluminum alloy, carefully processed to ensure its rigidity. Its compact size, measuring just 32mm high and 143mm wide, allows for a neat and tidy placement on your desk. Available in two colors, black and silver, you can choose the one that best suits your needs.