Description
🔍 Product Description
Overview
The TOPPING U90 is a reference-grade digital audio bridge designed to serve as the centerpiece of high-end desktop or home Hi-Fi systems. With its advanced USB interface, ultra-precise clocking, built-in USB isolation, and wide array of digital outputs (I²S, AES/EBU, coaxial, optical), the U90 elevates digital signal quality and flexibility far beyond conventional USB DACs.
Key Features
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High-Resolution Support – Accepts USB input and outputs PCM up to 32-bit/768 kHz and native DSD up to DSD512 via its I²S LVDS interface.
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Multiple Digital Outputs – Includes 1× I²S (LVDS), 2× AES/EBU, 2× coaxial SPDIF, and 2× optical (Toslink), enabling connection to a wide variety of external DACs or audio processors.
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Ultra-Low Jitter & USB Isolation – Employs a femtosecond crystal oscillator, CPLD, and built-in USB isolation to minimise jitter and eliminate many ground-loop noises.
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12V Trigger & System Integration – Trigger output enables automated system power control when paired with other gear with 12V trigger capability.
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Flexible Compatibility – The I²S output features a set of DIP switches for pin/definition configuration, making the U90 compatible with many DACs that support I²S/ LVDS input.
Specifications (selected)
| Parameter |
Specification |
| PCM Support |
Up to 32-bit / 768 kHz (via I²S LVDS) |
| Native DSD |
Up to DSD512 |
| AES/Optical/Coax Output |
PCM up to 24-bit / 192 kHz (DSD64 via DoP)
|
| Digital Outputs |
1× I²S (LVDS), 2× AES, 2× Coax, 2× Optical |
| Trigger |
12V output for system control |
| Dimensions |
Approx. 222 × 160 × 45 mm
|
| Weight |
Approx. 1.02 kg
|
Why Choose the U90
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Ideal for serious audio enthusiasts who already own a top-tier DAC and want to upgrade the USB/bridge and clock side of the chain.
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Offers enormous flexibility: you can drive multiple DACs via its many outputs, or future-proof your system for advanced interfaces (I²S).
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Minimises digital-domain limitations (jitter, ground-loops, interface compatibility), thereby improving the signal delivered to your DAC and ultimately improving analog stage fidelity.
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Sleek aluminium design, desktop-friendly footprint, professional build quality – intended to be the hub of a premium system.
