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FIIO K7BT
Balanced Hi-Fi DAC/Amp with Bluetooth.
Dual DAC AK4493S + THX AAA 788 amplification
Bluetooth 5.1 (LDAC, aptX HD, aptX Adaptive, AAC, SBC)
Inputs: USB-B, optical, coaxial, RCA
Outputs: RCA pre-out, 6.35 mm jack (SE), 4.4 mm jack (balanced)
Resolution: up to PCM 384kHz / 32bit and DSD256
Power (4.4 mm): up to 2000 mW + 2000 mW @32Ω
Potentiometer and remote control
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FIIO K7BT. Bluetooth Amplifier/DAC. Black
Introducing the FiiO K7BT, the Bluetooth version of the renowned FiiO K7 that offers the same structure with the addition of wireless connectivity. This device incorporates Bluetooth 5.1 and can handle high-resolution audio codecs such as LDAC, aptX Adaptive and aptX LL, among others. With standout features such as two gain levels, a dual AK4493SEQ DAC and a THX AAA 788+ amplifier, the FiiO K7BT ushers in an era of superior power and exceptional wireless performance.
The FiiO K7BT features a six-stage audio design with balanced analogue and digital sections that minimise interference and enhance sound reproduction. Equipped with the THX AAA 788+ amplifiers from the K9 Pro, the K7BT delivers an output of 560 mW into 300-ohm headphones and 2000 mW into 32-ohm headphones, both with 1% distortion. This allows for optimal compatibility with both low and high impedance headphones, delivering a listening experience that really gets to the heart.
The K7BT's Bluetooth HD technology ensures smooth, low-latency transmission with high-resolution sound. Through its dedicated app, the wireless experience is significantly enriched. In addition, the AK4493SEQ DAC guarantees refined and detailed sound, enabling musical rediscovery. The XMOS XUF208 decoder handles multiple audio formats efficiently thanks to its dual-clock management.
Additionally, the K7BT features RGB indicator lights that add a touch of colour and dynamism to any space. Intelligent overheat and overload protection systems ensure safe and efficient operation in a variety of environments. With an advanced power design that includes multiple independent, low-noise LDO-regulated stages, the K7BT is designed to deliver clear and powerful energy for a superior listening experience.
The FiiO K7BT is adaptable for a variety of uses and is compatible with both headphones and powered speakers, offering standard and balanced connection options. The aluminium build quality, coupled with a sleek black finish and gold accents of the THX and Hi-Res Audio badges, complemented by RGB lights, give it a luxurious and modern look. The smooth volume wheel with 112 steps of adjustment ensures precise control for all your audio devices.
Specifications
MODEL FIIO K7BT
COLOUR Black
VOLUME SWITCH Potentiometer + ADC Sampling
USB INPUT: USB Type B Port
DUAL DAC DAC AKM AK4493S
USB CHIP XMOS XUF208
USB DRIVER: ASIO / KS / DS / WASAPI / DSD DOP (Native)
VOLUME CONTROL IC 2 x NJU72315
DRIVER OP AMP 2 x THX AAA 788
GAIN 0 / +6 / +10 dB
BLUETOOTH: Bluetooth 5.1
BLUETOOTH CHIP: QCC5124
BLUETOOTH CODECS LDAC, aptX HD, aptX Adaptive, aptX, aptX Low Latency, AAC and SBC
ANALOG INPUTS: 1 x RCA pair (Line In)
DIGITAL INPUTS: 1 x USB Type B port
1 x SPDIF digital coaxial input
1 x Toslink optical digital input
ANALOG OUTPUT: 1 x RCA pair (Pre Out)
HEADPHONE OUTPUT 6.35 mm Single Ended Jack
4.4 mm Mini Jack Balanced
DIGITAL INPUT RESOLUTION: USB Type B port: PCM 384 kHz / 32 Bits, DSD256
Coaxial Digital Input: 192 kHz / 24 Bits
Optical digital input: 96 kHz / 24 bits
DSD DSD64/128/256, native DSD
SAMPLING RATE INDICATION:
Blue: 44.1 kHz / 48 kHz
Yellow: 88.2/96/176.4/192/352.8/384 kHz
Green: DSD64 / DSD128 / DSD256
RECOMMENDED HEADPHONE IMPEDANCE: 16-300 Ω
LINE OUTPUT SOUND PARAMETERS
FREQUENCY RESPONSE:
20 Hz - 20,000 Hz ±<<0.4 dB (UAC).
20 Hz - 20,000 Hz ±<<0.8 dB (SPDIF IN)
20 Hz - 50,000 Hz ±<<2.2 dB (UAC)
20 Hz - 50.000 Hz ±<<1.7 dB (SPDIF IN)
TOTAL HARMONIC DISTORTION (THD+N): <0.0005% (1 kHz / 10 kΩ / dbA)
DIAPHONY ≥102 dB (1 kHz / 10 kΩ)
FLOOR LEVEL NOISE: <3 μV (dbA)
SIGNAL/ NOISE RATIO: ≥116 dB (dB A, UAC)
OUTPUT LEVEL: ≥2 Vrms
6.35 MM SINGLE ENDED HEADPHONE OUTPUT SOUND PARAMETERS
FREQUENCY RESPONSE: 20 Hz - 20,000 Hz ±<<0.3 dB (UAC)
20 Hz - 20,000 Hz ±<<0.7 dB (SPDIF IN)
20 Hz - 50.000 Hz ±<<2.1 dB (UAC)
20 Hz - 50,000 Hz ±<<1.6 dB (SPDIF IN)
OUTPUT POWER 1: L+R≥ 1220mW + 1220mW (32Ω / THD+N<1%)
OUTPUT POWER 2: L+R≥ 140mW + 140mW (300Ω / THD+N<1%)
TOTAL HARMONIC DISTORTION + NOISE (THD+N): <0.0003% (1 kHz / 32Ω / dBA)
OUTPUT IMPEDANCE: <1Ω (32Ω)
DIAPHONY ≥77 dB (1kHz / 32Ω)
NOISE FLOOR LEVEL:
<3.1 μV (dbA, AUX IN).
<4.4 μV (dbA，UAC)
SIGNAL-TO-NOISE RATIO:
≥128 dB (dbA, AUX IN).
≥120 dB (dbA, UAC)
PEAK OUTPUT LEVEL: ≥18.9 Vpp
BALANCED 4.4 MM HEADPHONE OUTPUT SOUND PARAMETERS
FREQUENCY RESPONSE: 20 Hz - 20,000 Hz ±<<0.3 dB (UAC)
20 Hz - 20,000 Hz ±<<0.7 dB (SPDIF IN)
20 Hz - 50.000 Hz ±<<2.1 dB (UAC)
20 Hz - 50.000 Hz ±<<1.6 dB (SPDIF IN)
OUTPUT POWER 2
L+R≥ 2000mW + 2000mW (32Ω / THD+N<1%)
OUTPUT POWER 3
L+R≥ 560mW + 560mW (300Ω / THD+N<1%)
TOTAL HARMONIC DISTORTION + NOISE (THD+N)
<0.0003% (1 kHz / 32Ω / dbA)
OUTPUT IMPEDANCE: <1Ω (32Ω）
DIAPHONY ≥124 dB (1kHz / 32Ω)
NOISE FLOOR LEVEL
<5.1 μV (dbA, AUX IN)
<7.7 μV (dbA, UAC）
SIGNAL-TO-NOISE RATIO
≥128 dB (dbA, AUX IN)
≥120 dB (dbA, UAC)
PEAK OUTPUT LEVEL: ≥37.7 Vpp
ACCESSORIES: USB cable
External power supply
Rubber feet
Quick Guide
Warranty
3.5 mm to 6.35 mm mini jack adapter
DIMENSIONS: 55 mm (H) x 120 mm (W) x 146.5 mm (D)
WEIGHT: 610 g
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