FiiO K9 Pro ESS Desktop Bluetooth DAC and Amp

condition: New

Gain: L/M/H

Bluetooth format indication: Surpported

Firmware upgrade: System firmware and Bluetooth version can be upgraded via USB

Bluetooth format indicator: "SBC: blue", "AAC: cyan", "aptX HD: yellow", "aptX: purple", "aptX LL: purple", "LDAC: white", "atpX Adaptive: green"

Maximum supported sampling rate: 384kHz-32bit/DSD256(USB DAC)
192kHz-24bit (coaxial)
96KHz

Button: Physical key + toggle switch

Single-ended line input interface: RCA socket

Spdif in: Optical fiber socket

Balanced output interface: 4.4mm socket, XLR4 balanced socket

Balanced line output interface: XLR3 balanced socket

Power supply: AC 110-115V~/AC 220-230V~ (Recommended)

Hardware solution: "DAC: ES9038PRO*2", "USB: XMOS XUF208", "Bluetooth: QCC5124", "LPF: OPA1612 * 2", "volume IC: NJU72315 * 2", "AMP: THX AAA 788+ * 2", "linear transformer:THAILIN/BingZi"

Volume Scroll: Potentiometer+ADC Sampling

Channel balance: L12~R12 (0.5dB per level)

FiiO Control: Surpported

Sampling rate indication: Surpported

Deep standby: Long press the multi-function button for about 3s

Bluetooth receiver (5.0): AAC/SBC/aptX/aptX LL/aptX HD/LDAC/atpX Adaptive

Recommended headphone impedance: 16~600 O

USB: Type-C, USB B (data transmission)

Balanced line input interface: 4.4mm balanced socket

Digital coaxial input interface: RCA socket

Headphone output interface: Standard 6.35 mm socket

Single-ended line output interface: RCA socket

MPN: K9PROESS

Audio Inputs: Digital Coaxial RCA

Number of Inputs: 4

Features: Balanced

Color: Black

Number of Outputs: 8

Brand: FiiO

Type: Desktop Amplifier

Model: K9 Pro ESS

MPN: K9PROESS