NuPrime SiGa Power75 is the name of NuPrime’s new high-performance AC-to-DC power adapter, engineered for precision audio and other low-noise electronic applications. Rather than a conventional power brick, the NuPrime SiGa Power75 is a sophisticated power conversion platform that transforms incoming AC mains power into stable 12V and 5V DC outputs, aimed at DACs, streamers, network switches, reclockers and other components where power quality directly affects performance.
NuPrime SiGa Power75: a SiC and GaN hybrid power architecture
At the core of the NuPrime SiGa Power75 is a hybrid architecture combining Silicon Carbide (SiC) and Gallium Nitride (GaN), third-generation semiconductor technologies known for high switching speed, low energy loss and strong thermal performance. NuPrime says applying these technologies to power rectification, conversion and regulation delivers up to 93% conversion efficiency, a cleaner and faster DC supply, and improved thermal performance compared with conventional adapters and many linear power supplies.
The NuPrime SiGa Power75 also uses Silicon Carbide Schottky diodes, which NuPrime says exhibit effectively zero reverse-recovery charge, reducing switching artifacts and high-frequency noise versus conventional silicon diodes. Gallium Nitride transistors switch fast enough to react to sudden load changes, which NuPrime says helps maintain voltage stability during dynamic passages.
Built for sensitive audio and digital systems
A Common-Mode Active Noise Cancellation (CM-ANC) circuit continuously monitors common-mode noise and injects an inverted-phase correction signal across a bandwidth of up to 1 MHz, while a dedicated bronze isolation shield is designed to reduce both radio-frequency interference and mechanical resonance around the GaN module. An integrated precision display provides live voltage, current and wattage readings, with dedicated ANC and DIM controls on the front panel of the NuPrime SiGa Power75.
The 5V DC output of the NuPrime SiGa Power75 is delivered over USB Type-A connectors, while the 12V DC output uses four 5.5×2.5mm DC connectors, with a maximum output current of 5A per port and a total power rating of up to 60W on the 12V rail. NuPrime rates ripple and noise at under 2.5 mVrms across the 10 Hz to 110 kHz audio range, improving to under 1 mVrms on the 12V rail with CM-ANC switched on.
Pricing and availability
The NuPrime SiGa Power75 is available now, priced at $379. More information is available through NuPrime Audio.
Key specifications
Full specifications for the NuPrime SiGa Power75:
- Maximum power: 75W total (4x 12V @ 5A and 2x 5V @ 3A, combined output cannot exceed 75W)
- Efficiency: 93% (@12V/5A output)
- Ripple and noise: under 2.5 mVrms (10 Hz–110 kHz audio range)
- Typical ripple at 12V: under 1 mVrms with ANC on, 2.5 mVrms with ANC off
- Switching speed: above 500 kHz (via GaN FETs)
- 5V DC output connectors: USB Type-A
- 12V DC output connectors: DC 5.5×2.5mm
- Dimensions (W x H x D): 170 x 60 x 95 mm
- Weight: 1 kg
- Included accessories: 2x DC power cord (5.5×2.5mm to 5.5×2.1mm), 1x AC power cord, 4x self-adhesive rubber feet
- Warranty: 1 year
