Headphone Amplifiers
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Fiio K7 FiioK7 Portable Digital Headphone Amplifier
Number of Channels: 2 , With DAC, USB and Jack 6.3mm
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Clear- DAC(Built-In): Features a built-in digital-to-analog converter. Connects directly to a PC, mobile phone, or tablet via USB/Optical, significantly upgrading the sound quality compared to your device’s sound card.
- Volume Control: Includes a physical rotary knob (potentiometer) or buttons for direct, precise, and analog control of volume, without needing to access your computer or mobile device settings.
- Mini Jack (3.5mm): Headphone jack with a 3.5 mm plug, commonly found on portable and everyday-use headphones. For headphones with a 6.35 mm plug, a suitable adapter is required.
- Jack (6.3mm): Headphone jack for the large 6.35 mm plug, commonly found on studio and Hi-Fi headphones. Headphones with a 3.5 mm plug can be connected using a suitable adapter.
- Analog: Uses traditional analog circuits (transistors or tubes). Targeted at audiophiles, as it offers the characteristic "warm," full, and natural sound, but requires an analog input source.
- Digital: Processes the signal digitally (often Class D category), offering high energy efficiency, compact size, and crystal-clear sound without distortion, ideal for portable devices and modern setups.
- RCA: Analog audio connection via two RCA connectors, usually red and white. It allows connection to devices with a corresponding audio output, such as CD players or external DACs.
- Optical: Digital audio connection via optical fiber. Used for connecting to televisions, CD players, and other devices that have an optical audio output.
- Coaxial: Digital audio connection via coaxial cable, usually with an RCA connector. It is used to connect devices that have a digital coaxial output, such as CD players. It differs from analog RCA connection.
- USB: Allows digital audio transfer from a computer or compatible phone/tablet to the amplifier via USB. Compatibility and the required cable depend on the model and the connected device.
- Bluetooth: Allows wireless audio reception from a mobile phone, tablet, or computer for listening through the headphones connected to the amplifier. It does not necessarily mean that the amplifier can transmit audio to Bluetooth headphones.