Specification Details Model FiiO K7 / FiiO K7 BT Type Desktop DAC and Headphone Amplifier DAC Chip AK4493SEQ x2 USB Decoder XMOS XUF208 Volume IC NJU72315 x2 Amplifier THX AAA 788 x2 (truly balanced) Audio Circuit 6-stage truly balanced analog and digital Max Supported Sampling Rate PCM 384kHz/32-bit | DSD256 (USB) | PCM 192kHz/24-bit (Coaxial) | PCM 96kHz/24-bit (Optical) Inputs USB-B (data) | Optical (TOSLINK) | Coaxial (RCA) | RCA Line In Headphone Outputs 6.35mm single-ended 4.4mm balanced Line Output RCA (≥2Vrms) Output Power (6.35mm SE) ≥1220mW 1220mW @ 32Ω | ≥140mW 140mW @ 300Ω (THD N Output Power (4.4mm BAL) ≥2000mW 2000mW @ 32Ω | ≥560mW 560mW @ 300Ω (THD N THD N (PO) SNR (UAC) ≥120dB (A-weighted) Noise Floor (SE, UAC) Noise Floor (BAL, UAC) Output Impedance Crosstalk (SE) ≥77dB (1kHz/32Ω) Crosstalk (BAL) ≥124dB (1kHz/32Ω) Gain Levels 2 (Low / High) Volume Control Scroll potentiometer ADC sampling (112 steps) Output Modes 3 (Headphone / Speaker-Line / DAC only) Recommended Headphone Impedance 16~300Ω RGB Indicators Blue (44.1/48kHz) / Yellow (88.2~384kHz) / Green (DSD64/128/256) Bluetooth (K7 BT only) Qualcomm QCC5124, Bluetooth 5.1 - LDAC / aptX Adaptive / aptX HD / aptX / aptX LL / AAC / SBC App Control (K7 BT only) FiiO Control app - codec selection, custom PEQ, BT firmware upgrade Power Supply DC 12V/2A (external adapter included) Chassis Material CNC-machined aluminum alloy Dimensions ~120 x 168 x 55mm Weight ~610g In-box Contents K7/K7 BT unit, power cable, power adapter (12V/2A), USB cable, quick start guide, warranty card Certification Hi-Res Audio certified
