NuPrime AMG HPA Headphone Amplifier
Best balanced amplifier for audiophiles seeking pure, high-fidelity sound.
Experience unparalleled audio clarity with the NuPrime AMG HPA Headphone Amplifier. This amplifier leverages a unique 1MΩ input impedance design, ensuring a transparent and detailed signal path from your source to your headphones. Its fully balanced architecture, featuring independent stages for input, volume, amplification, and power output, delivers exceptional performance. The Class A amplification stage provides rich harmonics, while precise 100-level volume control ensures accurate adjustments. Beyond its primary function, the AMG HPA also serves as a reference-level pre-amplifier, offering versatile connectivity options for a complete high-fidelity audio setup.
$2150.00
Owner Satisfaction
4.6
/ 5
Category Rank
255
/ 733
#255 in Headphone Amplifiers
Price vs Category Average
+54%
Above average
Input Impedance
110200
/ M Ohm @ Hz ~ kHz (Balanced/Line)
Who it's for
- System builders requiring versatile balanced and single-ended connectivity
- Audiophiles owning demanding planar magnetic or high-impedance headphones
- Listeners prioritizing transparent, high-resolution sound reproduction
Who should skip it
- Desktop users with limited workspace or portability needs
- Budget-conscious buyers seeking entry-level audio equipment
- Users wanting an all-in-one DAC and amplifier solution
Performance breakdown
Signal Transparency
The 1M Ohm input impedance ensures an exceptionally clean, uncolored signal path.
Drive Capability
Robust 3500mW output effortlessly powers even the most demanding 600-ohm headphones.
Harmonic Character
Class A amplification stage delivers a rich, musical warmth to every track.
Volume Precision
The 100-level control allows for surgical accuracy in your listening volume.
Connectivity Versatility
Functions as a high-fidelity pre-amp to anchor your entire audio setup.
Build Integrity
Substantial power filtering and balanced architecture provide a rock-solid foundation.
Key Specs
Input Impedance
1M Ohm @ 10 Hz ~ 200 kHz (Balanced/Line)
Dimensions
235 mm x 55 mm x 300 mm (W x H x D)
Weight
5.5 pounds (2.5 kg)
Balanced Headphone Output Power
Max 3500mW @ 32 ohm
Total Harmonic Distortion (THD+N)
0.05 %
Signal-to-Noise Ratio
> 100 dB
Frequency Response
20 Hz to 200KHz (-3dB)
Power Supply Filtering
26000uF capacitors
Features
- 1MΩ input impedance for superior clarity
- Fully balanced amplification circuitry
- Class A amplification for rich harmonics
- Precise 100-level balanced volume control
- Functions as a reference-level pre-amp
- Stable power delivery with custom transformer
- Low-noise JFET input stage
- Multiple high-quality headphone outputs
What customers say
The NuPrime AMG HPA is consistently praised for its exceptional sonic performance and value within the enthusiast market. Users highlight its outstanding transparency and detail retrieval, noting that it reveals the true character of high-end headphones without adding coloration. Its robust power delivery effortlessly drives demanding planar magnetic and high impedance models, maintaining tight bass control. The sound signature is described as neutral, fast, and highly resolving, creating an immersive soundstage. Build quality is excellent, featuring a solid aluminum chassis that feels premium. While positioned in the enthusiast segment, the consensus is that the AMG HPA offers superb value, often competing favorably against much pricier amplifiers. It is highly recommended for serious listeners seeking reference grade quality.
Know before you buy
No, the AMG HPA is a dedicated analog headphone amplifier and pre-amplifier. It does not contain an internal digital-to-analog converter, so you will need to connect an external DAC or analog source to the RCA inputs.
Yes, the AMG HPA is designed to function as a reference-level pre-amplifier. You can connect it to a power amplifier to control your main speaker setup while maintaining the same high-fidelity signal path used for your headphones.
The unit is highly versatile, featuring three headphone outputs: a standard 6.35mm jack, a 4.4mm balanced output, and an XLR balanced output. This allows you to connect a wide variety of headphones without needing adapters.
Yes, the AMG HPA is capable of driving headphones with impedances up to 600 ohms. With a maximum power output of 3500mW at 32 ohms, it provides plenty of headroom for demanding audiophile gear.
The high 1M Ohm input impedance minimizes the electrical load on your source component. This ensures a more transparent and detailed signal transfer, preventing the amplifier from coloring the sound or straining the source device.
The AMG HPA uses a precise 100-level balanced volume control system. This allows for extremely fine-tuned adjustments, ensuring you can find the perfect listening level regardless of your headphone's sensitivity.
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