NuPrime launches IDA-8 Integrated Amplifier with New Class A + D Hybrid Amplifier and Built-in DAC


Many in the audiophile community were familiar with NuForce’s award-winning high end line of electronics—especially their amplifiers. In 2014, NuForce decided to focus on mobile products and sold their high end line and technology to a group of investors who created NuPrime Audio under NuForce’s co-founder and original CEO, Jason Lim.
NuPrime has just announced the IDA-8, based on the company’s new Class A+D hybrid amplification technologies.  NuPrime says that their Class A+D hybrid technologies deliver “the substance and warmth of Class A amplification and the efficiency and speed of Class D technology in a milieu of unmeasurable noise.”
The IDA-8 is a single-chassis, integrated stereo amplifier with an on-board DAC capable of decoding USB PCM 384 and DSD256.  The IDA-8 is slated to dish out 100Wx2 in an 8.5″ wide chassis.  On the input side, there are connectivity options for just about any setup, but the limited total number shows this unit is assuming streaming or digital sources to dominate.   There are four digital inputs and one stereo input.   There is also an analog line-out (Sub Out), with 3X the standard output power, that NuForce says provides “impressive lows and a wide sound stage specifically designed for subwoofers.”  For those interested in streaming, there’s an extension port for Bluetooth dongle (included) and WiFi audio streaming (optional)

The big news in this integrated amplifier lies in its touted hybrid design and nod to modern digital sources. NuPrime claims that by utilizing discrete components in the Ultra-Linear Class A Module (ULCAM) circuit, the signal can be fine tuned to reduce noise and provide maximum power. NuPrime goes on to say that the amp circuit improves on traditional class-D design by using a self-oscillating circuit to generate pulse-width modulation. The amplifier switches at a frequency of 600kHz. NuPrime makes is a point to emphasize that the switching frequency is double that of most Class-D amps, which switch at 300kHz or lower, and is well beyond the compact disc’s 44.1kHz sampling rate. NuPrime’s SRC IC chip is said to provide FPGA processing for ultra-low jitter and distortion rates.

It’s not often that a company specifically points out the products’ isolation feet. NuPrime has put some patent pending focus on the isolation feet by adding some patent pending feet that the company claims absorbs and cancels vibrations that degrade audio performance. In other words, there’s no need to add after-market sorbothane feet or other dampening products to the new IDA-8.

NuPrime further credits the IDA-8’s low noise floor to an innovative volume control based on a thin-film resistor design that positions a single resistor in the signal path for each volume setting. Volume changes occur in 99 precise 0.5dB increments for each input’s individually adjustable volume level. Precise level matching is a breeze, as is the user’s ability to make comparisons of music sources.

NuPrime says that the IDA-8 achieves Total Harmonic Distortion + Noise (THD+N) levels of less than 0.005% with a -130dB S/N ratio while achieving a system efficiency of up to 93%.
IDA-8 user guide illutration
The NuPrime IDA-8 is available worldwide for a suggested retail price of US$995 and shipping on June 22.  For more information, please visit

  • USB Sampling Rates: 44.1KHz, 48KHz, 88.2KHz, 96KHz, 176.4KHz, 192KHz, 352.8KHz, 384KHz and DSD 2.8MHz, 5.6MHz, 11.2MHz 
  • S/PDIF Sampling Rates: 44.1KHz, 48KHz, 88.2KHz, 96, 176.4KHz, 192KHz, 384KHz (Coaxial) 
  • Maximum Sampling Rate: 32-bits 
  • Bit Resolution: 16-32-bits 
  • Power output: 100W x 2 (8-Ohm) 
  • THD+N: 0.005% 
  • SNR = -130dB 
  • Peak Output Power: 280w 
  • Frequency Response: 10Hz to 50kHz 
  • Dimensions: 235 mm W x 281 mm D x 55 mm H (including feet) 
  • Weight: 4.3Kg 
  • Worldwide AC voltage: (90VAC~130VAC // 210VAC~ 250VAC) With Voltage Select Switch