Product Overview:
The Nobsound U8 PRO is a next-generation USB isolator incorporating medical device development know-how. Its 1500V isolation technology and 480Mbps high-speed data transfer eliminate the "final barrier to sound quality degradation" between PC and DAC. It physically blocks ground loop noise, a nuisance for audiophiles, while delivering the reliability demanded by industrial equipment users in a compact body. It's a sound quality cleansing device built to last.
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Precautions for Use
* A 5V/1A or higher adapter is recommended when using an external power supply.
* Check compliance before connecting to medical devices.
* Type-A and Type-C outputs cannot be used simultaneously.
Q: What should I do if the U8 PRO doesn't recognize my device?
A: Test the isolator's operation with a USB drive or mouse. If it works without problems, check the system driver for the external device (e.g., sound card). If the issue persists, please contact us for further support.
Q: When does the U8 PRO require an external power supply?
A: The built-in 5V/200mA isolation power supply is compatible with most common devices. When using high-power devices, an external 5V DC power supply is recommended.
Q: Can Type-A and Type-C outputs be used simultaneously?
A: No. The U8 PRO can only output from one USB port (Type-A or Type-C) at a time.
Q: Does the U8 PRO require a driver?
A: No. The U8 PRO is plug-and-play.
Q: Is the U8 PRO suitable for applications other than HiFi systems?
A: Yes, the U8 PRO is highly versatile and can be used in other noise-sensitive environments, such as precision USB data acquisition systems, industrial USB devices, and medical equipment that requires electrical interference prevention.
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Parameters
Model: U8 PRO
Audio Input: Micro-B / Type-C
Audio Output: Type-A / Type-C
USB Compatibility: USB 1.0 / 1.1 / 2.0 (MAX 480 Mbps)
Isolation Voltage: 1500V
Supported Data Transfers: USB Control Transfer, Bulk Transfer, Interrupt Transfer, Isochronous Transfer
Internal Power Output: 5V/200mA (MAX)
Operating Temperature: -20°C to 85°C (-4°F to 185°F)
Driver Required: No
External Input Voltage: DC 5V (Power Adapter Not Included)
Dimensions (W x D x H): 55 x 41 x 19mm / 1.61 x 2.05 x 0.74in
Net Weight: 100g / 0.22lb
Package Weight: 200g / 0.44lb
Packing List
U8 PRO USB Isolator x 1
USB Cable 1 piece
〈Revolutionize the purity of sound quality with medical-grade 1500V isolation〉 The Analog Devices ADuM3165 isolation chip physically blocks ground loop noise from entering through a PC or smartphone USB port. The 1500VDC industrial-grade insulation strength achieves the noise immunity required for electrocardiogram monitors (IEC 60601-1 standard). In audio systems, it reduces background buzzing that occurs during digital signal transmission to a DAC by 98%, ensuring complete silence even during silent passages in classical music performances. It also functions as a lightning surge protector, protecting expensive headphone amplifiers from voltage spikes.
〈480Mbps high-speed transfer for perfect audio data reproduction〉 Full support for USB 2.0 HS mode (480Mbps) enables zero-compression transmission of high-resolution audio sources such as DSD256 (11.2MHz) and PCM 384kHz/32-bit. A proprietary isolation transformer prevents packet loss during USB isochronous transfer. Eliminates the clicky sounds that can occur during multi-track recording with DAW software or live streaming. Equipped with Type-C, Micro-B, and A connectors, it is compatible with a wide range of devices, from the latest DAPs to legacy audio interfaces.
Dynamic Power Supply System Optimizes Device Compatibility: The built-in isolation power supply (5V/200mA) can drive most portable DACs. It automatically switches to an external 5V adapter (Type-C input) when connected to a high-power device. Even when connected to a vacuum tube headphone amplifier, which has fluctuating current demands, it prevents volume fluctuations due to voltage drops. Dual protection circuits for USB bus power and external power reduce the risk of equipment damage in the event of overcurrent or short circuits.
Plug-and-play design for multi-OS environments: Driverless operation is supported for Windows, macOS, Linux, and Raspberry Pi. Full support for USB control, bulk, interrupt, and isochronous transfers. Connect a Windows PC to a USB-DAC in the office to reduce feedback in a conference system, or eliminate clicks between a Mac and an audio interface in a home studio. The hot-swap function eliminates the need for a reboot when restoring the system, making it suitable for connecting to continuous monitoring equipment in medical settings.
Compact body with industrial equipment protection: Despite its ultra-compact design of 55 x 41 x 19 mm, it operates reliably in harsh environments ranging from -20°C to 85°C. It prevents malfunctions caused by electrostatic discharge (ESD) when connected to the control PC of semiconductor manufacturing equipment. For audio systems, it can be stored in the narrow gaps of AV racks, eliminating unsightly tangled cables.
