Nuprime AMG One

The Nuprime AMG One is a class D mono amplifier designed to deliver 170W into 8 Ω and 220W into 4 Ohm. Inside, Nuprime integrates a high-power 250 W toroidal transformer for more stable power with lower background noise, as well as ultra-high current terminals for better signal quality. The class D ODC design significantly reduces distortion by deriving the error signal from the MOSFET devices and output filter circuit, resulting in a natural and pure sound.

Technical Specifications

Architecture and Design

• Revolutionary NuPrime Class D design
• Class D preamplification stage and oscillation circuit
• High-end NJR MUSES8820 amplifier
• High-speed switching frequency of 600 kHz for better resolution

Power Supply

• Upgraded 250 W toroidal transformer
• Ultra-high current of 15 A with low resistance
• Enhanced dynamic capacity
• 22,000 µF power filtering capacitors per channel
• High-quality copper printed circuit boards

Audio Performance

• Effective output power (RMS)
  • 170 W at 8 Ω
  • 220 W at 4 Ω
• Peak output power
  • 210 W at 8 Ω
  • 260 W at 4 Ω
• Gain: × 21
• Sensitivity (at rated power): 1.7 V RMS
• Input impedance: 47 kΩ
• Frequency response: 10 Hz to 50 kHz (−3 dB)

Connectivity

• Unbalanced (RCA) and balanced (XLR) inputs
• 12 V trigger input and output
• Speaker terminals

General Features

• Standby power consumption: 0.4 W
• Universal mains voltage: 115 / 230 V AC with selector
• Mains fuse: slow-blow, 5 A, 250 V AC
• Dimensions (W × D × H): 285 × 235 × 55 mm
• Weight: 5 kg