NuPrime AMG HPA – High-End Balanced Headphone Amplifier & Preamplifier

The NuPrime AMG HPA is a fully balanced high-end headphone amplifier designed for audiophiles and headphone enthusiasts seeking reference-level performance, exceptional transparency, and natural musicality. Developed as part of NuPrime’s prestigious AMG Series, the AMG HPA combines sophisticated single-ended Class A analog circuitry with an ultra-wide bandwidth fully balanced architecture.

As the world’s first headphone amplifier featuring an extraordinary 1MΩ input impedance, the AMG HPA minimizes interaction between the source and amplification stages, preserving signal integrity, micro-detail, and dynamic accuracy. The result is an exceptionally transparent, fast, and holographic sound presentation with deep controlled bass, refined midrange textures, and smooth, natural high frequencies free from harshness.

NuPrime’s proprietary circuitry employs ultra-low-noise wide-band JFET components and a no-negative-feedback amplification design, delivering a fluid, harmonically rich, and highly engaging listening experience. In addition to its headphone amplification capabilities, the AMG HPA also functions as a premium analog preamplifier through its balanced XLR and RCA line outputs.

Compatible with both dynamic and planar magnetic headphones, the AMG HPA delivers up to 3500mW through its balanced headphone output, providing excellent control and authority even with highly demanding headphones. The precision CNC-machined aerospace-grade aluminum chassis completes the design with premium build quality and superior mechanical isolation.

Key Features

• Fully balanced high-end headphone amplifier
• Integrated analog preamplifier functionality
• Ultra-high 1MΩ input impedance
• Single-ended Class A JFET circuitry
• No negative feedback design
• Natural, detailed, and musical sound signature
• Compatible with dynamic and planar headphones
• 6.3mm, balanced 4.4mm, and 4-pin XLR headphone outputs
• Stereo RCA and balanced XLR inputs
• RCA and balanced XLR line outputs
• High-precision linear power supply
• Premium CNC-machined aluminum chassis

Technical Specifications