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【Voltage Compatibility】
When using electrical appliances, please note that they are designed for Japanese voltage specifications (90-110V), so if you use them with a different voltage, it may cause a malfunction.
【Plug Type】
Our products use Japanese plug types (A or B type).
Please use a conversion adapter if necessary.
【Important Note on Transformers and Adapters】
A transformer adjusts voltage to match your device’s requirements.
A conversion adapter only changes the plug shape and does not adjust voltage.
Using only a conversion adapter without a transformer may result in damage to the product.
【Liability】
We are not responsible for malfunctions or damages caused by improper use, such as operating the product without a transformer.
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Q4 DAC headphone amplifier is designed with RCA/PC-USB/optical/coaxial/input and 3.5MM headphone output fits most home audio systems and headphones. (Note: Microphone is not supported). RCA output can be connected to a desktop amplifier or powered speakers. Built-in Hi-Fi headphone amplifier chip can drive 16Ohm to 200Ohm headphones.
Q4 Headphone USB DAC Adopts Texas Instruments NE5532 high performance operational amplifier chip with excellent DC and AC characteristics. It features very low noise, high output drive capability, high unity amplification, and maximum output swing bandwidth, low distortion, high slew rate, input protection diodes, and output short-circuit protection.
160mW RMS (32 Ω, 20 Hz - 20 KHz, 0.01% THD), with bass and treble controls, can be used as a preamplifier or volume controller for PC/MAC/headphones/speaker systems. This digital audio adapter is easy to set up and connect, as there is no need to install any additional software, apps, or drivers.
Ultra-compact D/A converter with full metal shell ensures high quality. It streams bit-perfect 24bit/192KHz HD with low jitter and has output protection circuitry, making it safe for expensive audio systems.
Shipping details: Q4 USB DAC x1, USB charging cable x1, optical cable x1, PC-USB to Type-B cable, user manual x1, 24 months worry-free warranty. If you have any questions about the installation of your product, please feel free to contact us. We will provide detailed guidance.
Note:
PC-USB supports input sampling rate: 96K/24Bit High and low audio adjustment range: ±6dB Fiber/coaxial support input sampling rate: 192K/24Bit Frequency response: 20Hz-20kHz (±3dB) 3 PC-USB support operating system: XP/W7/W8/W10/MAC/linux Distortion: 0.01% Working voltage: DC5V Amplifier output maximum power: 100mW 32Ω load Signal-to-noise ratio: ≥105dB Headphone matching impedance: 16-200Ω
