Λεπτομέρειες
GENERAL SPECIFICATIONS
Name / Model No. | K9 Pro ESS | 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 |
Color | Black | Volume Scroll | Potentiometer+ADC Sampling |
Weight | ≈2750g | Channel balance | L12~R12 (0.5dB per level) |
Gain | L/M/H | FiiO Control | Surpported |
Bluetooth format indication | Surpported | Sampling rate indication | Surpported |
Firmware upgrade | System firmware and Bluetooth version can be upgraded via USB | Deep standby | Long press the multi-function button for about 3s |
Low battery reminder | / | Dimensions | ≈200x224.5x72mm (excluding feet) |
Bluetooth transmission | / | Bluetooth receiver (5.0) | AAC/SBC/aptX/aptX LL/aptX HD/LDAC/atpX Adaptive |
Bluetooth format indicator | SBC: blue, AAC: cyan, aptX HD: yellow, aptX: purple, aptX LL: purple, LDAC: white, atpX Adaptive: green | Charging indicator | / |
Maximum supported sampling rate | 384kHz-32bit/DSD256(USB DAC) | Recommended headphone impedance | 16~600 Ω |
192kHz-24bit (coaxial) | |||
96KHz-24bit (optical) | |||
Buttons and interfaces | |||
Button | Physical key + toggle switch | USB | Type-C, USB B (data transmission) |
Single-ended line input interface | RCA socket | Balanced line input interface | 4.4mm balanced socket |
Spdif in | Optical fiber socket | Digital coaxial input interface | RCA socket |
Balanced output interface | 4.4mm socket, XLR4 balanced socket | Headphone output interface | Standard 6.35 mm socket |
Balanced line output interface | XLR3 balanced socket | Single-ended line output interface | RCA socket |
Power parameters | |||
Power supply | AC 110-115V~/AC 220-230V~ (Recommended) | Battery capacity | / |
Charging time | / | PO battery life | / |
Audio parameters | |||
Single-ended line output performance parameters | |||
THD+N | <0.00042%(1kHz/10kΩ/dbA) | SNR | ≥123dB (dbA) |
Crosstalk | ≥115dB (1kHz/10kΩ) | Noise floor | <1.9μV(dbA) |
Frequency response | 20Hz~20kHz (-3dB) | Line Level | 2.5Vrms (1kHz/10kΩ) |
Balanced line output performance parameters | |||
THD+N | <0.00025%(1kHz/10kΩ/dbA) | SNR | ≥128dB (dbA) |
Crosstalk | ≥125dB (1kHz/10kΩ) | Noise floor | <1.9μV(dbA) |
Frequency response | 20Hz~50kHz (-1.5dB) | Line Level | 5Vrms (1kHz/10kΩ) |
Single-ended headphone output performance parameters(6.35mm) | |||
Continuous undistorted output power 1 | ≥1.1W(16Ω / THD+N<1%, AUX IN) | Output impedance | <1Ω(32Ω) |
Continuous undistorted output power 2 | ≥1.0W(16Ω/THD+N<1%,UAC/SPDIF/BT IN) | Crosstalk | ≥75dB (1 kHz/32Ω,AUX IN) |
Continuous undistorted output power 3 | ≥281mW(300Ω / THD+N<1%,AUX IN) | THD+N | <0.00033% (1 kHz/32Ω/dbA) |
Noise floor |
<2μV(dbA,AUX IN) <3μV(dbA,UAC/SPDIF/BT IN) |
SNR | ≥129dB (dbA) |
Frequency response | 20 Hz~50kHz (-1.5dB) | MAX Output Voltage | >26Vp-p |
Balanced headphone output performance parameters(4.4mm/XLR4) | |||
Continuous undistorted output power 1 | ≥1.1W(16Ω / THD+N<1%) | Output impedance | <1Ω(32Ω) |
Continuous undistorted output power 2 | ≥2.1W(32Ω /THD+N<1%) | Crosstalk | ≥114dB (1 kHz,AUX IN) |
Continuous undistorted output power 3 | ≥1.1W(300Ω / THD+N<1%) | THD+N | <0.0003% (1 kHz/32Ω/dbA) |
Noise floor |
<3μV(dbA, AUX IN) 4.5uV(dbA,UAC/SPDIF/BT) |
SNR | ≥123dB (dbA) |
Frequency response | 20Hz~50kHz (-3dB) | MAX Output Voltage | >52Vp-p |
COMPARISON
Model | K9 Pro | K9 Pro ESS | |
appearance |
Dimensions |
200*224.5*76mm (height including feet) | 200*224.5 * 72mm (height excluding feet) |
weight |
About 2750g |
About 2700g |
|
Volume knob |
Stainless steel PVD silver |
Aluminum alloy PVD gold |
|
Heat emission hole |
/ |
On both sides |
|
Material&color | All aluminum alloy, black | All aluminum alloy, black | |
Interfaces | power supply | AC + built-in Linear Power Supply | AC + built-in Linear Power Supply |
Digital input interface | USB; Optical; Coaxial; Bluetooth | USB; Optical; Coaxial; Bluetooth | |
Analog input interface | RCA;4.4mm balanced input | RCA;4.4mm balanced input | |
USB interface | USB B ;Type C | USB B ;Type C | |
Headphone output | Balance: XLR-4;4.4mm; Single-ended:6.35mm/3.5mm |
Balance: XLR-4;4.4mm; Single-ended:6.35mm/3.5mm |
|
Line out | RCA/Balanced XLR * 2 | RCA/Balanced XLR * 2 | |
Configuration |
Power supply unique design | Digital and Analog Isolation Design | Digital and Analog Isolation Design |
Audio processing layers | 6 layers | 6 layers | |
Clock design | dual mode dual crystal oscillator | dual mode dual crystal oscillator | |
filter |
6 kinds |
7kinds | |
USB CHIP | XMOS XUF208 | XMOS XUF208 | |
MQA | Renderer | Renderer | |
Bluetooth | QCC5124 | QCC5124 | |
Audio clock | High precision PLL + dual crystal oscillator | High precision PLL + dual crystal oscillator | |
Audio DAC | AK4499EQ*1 | ES9038Pro*2 | |
Output mode | HP/LO/DAC | HP/LO/DAC | |
Gain | Three gears | Three gears | |
Amp chip | Dual THX AAA 788+ | Dual THX AAA 788+ | |
Output performance |
Output power (PO) |
2000mW(32 Ω), 278mW(300 Ω)
|
2100mW(32 Ω),281mW(300 Ω) Balance: 2100mW(32 Ω),1100mW(300 Ω) |
Output power (BAL) |
2000mW(32 Ω),1100mW(300 Ω) |
2100mW (32Ω) 1100mW (300Ω) |
|
Peak output voltage | 51Vpp | 52Vpp | |
THD+N |
≤ 0.0003% | ≤ 0.00025% | |
SNR |
≥ 123dB | ≥ 129dB |
Πληροφορίες
Δεν Φαίνεται στο ΣκρουτζΦαίνεται στο Σκρουτζ | Όχι |
---|---|
Βάρος (Kg) | 0.1 |