NuForce HAP-100 Silver

High Performance Audiophile-Grade Preamp and Headphone Amplifier with Front 6.3mm (1/4 Inch) Jack

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NuForce HAP-100

The HAP-100 is a preamp and headphone amplifier for the audio enthusiast for whom quality headphone listening is a priority. The HAP-100's innovative design offers features never before available at its modest price point. Most significantly, the HAP-100 shares technologies first employed in our flagship P-20 preamp, along with other audiophile-grade developments. As with the remarkable P-20, the HAP-100 exploits NuForce's most recent work in volume controls. At the unit's core is a switched-resistor ladder network of low-noise, thin-film resistors, one per volume setting, permitting discrete, high-resolution increments of 1dB for the HAP-100's one hundred volume steps. A preamplifier stage providing 5dB of gain with zero negative feedback for fatigue-free listening A single-ended Class A headphone amplifier stage (a design topology long held by audiophiles to be the last word in headphone reproduction) Top-grade relays for input selection A linear power supply employing a toroidal transformer, large capacitor reserves and high-speed regulation for fast, clean power to all circuits A signal-to-noise ratio in excess of 100dB THD+N = 0.002%, assuring the ultimate in accurate reproduction Four low-noise, stereo RCA inputs One RCA stereo output offering a full 7.8Vrms to effortlessly drive any amplifier. This output can be turned off (by pressing On and then Input buttons on the remote control) while the 6.3mm headphone output remains enabled. A front-panel 6.3mm jack for large, over-ear headphones A stylish three-digit display (setting 1 for input selection / settings 2 and 3 for output levels from 00-99) A full-featured remote control

Product Features:

  • Digital to Analog Converter and Headphone Amp
  • Preamplifier stage providing 5dB of gain with zero negative feedback for fatigue-free listening
  • Single-ended Class A headphone amplifier stage
  • Great 24-bit/192kHz sample rate for higher fidelity
  • RCA stereo output offering a full 7.8Vrms
  • LED volume indicator for precise tracking of volume level
  • Includes an infrared (IR) remote for adjustments from a distance
  • one 3.5mm headphone out
  • DC 15V powered
  • Does not use capacitors in the signal path, thus improving overall sound quality, imaging, and sound-stage
  • Main Color: Silver
  • Also Available In: Black

Technical Specifications:

  • Digital Inputs: 4 RCA
  • 3.5mm line out
  • Speaker output: 30Wx2 (4Ohm) max power
  • Frequency Response: 10-185,000 Hz
  • THD: .002%
  • SNR: >100dB
  • Also available in
  • Dimensions: 9"W x 8 1/2"D x 2"H
  • Authorized Internet Dealer
  • 2-year Manufacturer's Warranty

Headphone Amplifier Specifications

Amplifier Style
Some headphone amplifiers are designed to be portable and others are meant to be placed on a desk. This will tell you what style of amplifier this item is.
Digital-to-Analog Converter (DAC)
A Digital-to-Analog converter (also known as a DAC) converts a digital audio signal into an analog signal. This is especially helpful for listen to music from digital sources, such as iPods and smart phones.
Frequency Response
The range of frequencies the amplifier will reproduce (lowest frequency to the highest). Bigger is better, meaning the wider the range, the better. The optimal range is 20 - 20,000 Hz (which is the range of human hearing).
10 - 185,000 Hz
Input Connection
This is the manner in which the headphone amplifiers receive an input audio signal.
Output Connection
This is the manner in which the headphone amplifier will output the audio signal.
3.5mm Mini-Jack
The width of the item from left to right (side-to-side) measured in inches.
The height of the item, measured from top to bottom, in inches.
The front-to-rear depth of the item, in inches. If the item is angled or slanted, this value is the bottom measurement.

DAC Specifications

Signal-to-Noise Ratio
This spec compares the strength of the signal to the level of background noise. A higher value indicates less background noise.
100 dB
Line Level Outputs
The type of analog line level outputs the DAC features.
3.5mm Headphone Jack

Warranty and Return Policy

Parts Warranty Duration
2 years
Labor Warranty Duration
2 years
Warranty Provider

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Product Summary


Model Number

HAP-100 Silver



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Sonic Electronix Wiring Guide

Wiring Diagram Legend

Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.

Product Name: NuForce HAP-100 Silver

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NuForce HAP-100 Silver

High Performance Audiophile-Grade Preamp and Headphone Amplifier with Front 6.3mm (1/4 Inch) Jack


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