NuPrime IDA-8

NuPrime's Class A+D hybrid amplification technology brings the substance and warmth of Class A amplification and the efficiency and speed of Class D technology to an environment of immeasurable noise. The IDA-8's spacious, transparent, dynamic and luxuriously textured soundstage has to be heard to be believed. The NuPrime IDA-8 consists of an integrated ultra-low noise amplifier and a digital-to-analog converter that decodes USB PCM 384 and DSD 256 with the convenience of wireless audio in a small, sleekly designed home stereo component.

• Output power: 100W x 2 @ 8 ohms
• State-of-the-art DAC with support for USB PCM 384 and DSD256, which can also decode DoP formats via coaxial and optical inputs
• Advanced ladder network with thin-film coupled resistors for volume control, with a single resistor in the signal path at all volume settings
• USB extension port for streaming (NuPrime Omnia Stream Mini, WR-2 or BTR-HD for blue tooth). This is a special port that provides S/PDIF signals and 5V power supply
• NuPrime vibration-free isolation feet

With all stages in a single chassis, the IDA-8 utilizes the shortest possible signal paths to achieve vanishingly low noise and distortion levels, giving the music a black velvet background.

The IDA-8's low noise is further complemented by an innovative volume control based on a thin-film resistor that places a single resistor in the signal path for each volume setting. "The switched resistor design is implemented using FPGA chips. Volume changes occur in 99 precise 0.5 dB steps for each input's individually adjustable volume level. Precise level adjustment is a breeze, as is the user's ability to make comparisons between different music sources.

By using discrete components in the NuPrime's ULCAM circuitry, the signal can be fine-tuned to reduce noise and provide maximum power. The NuPrime amplifier circuit improves on the traditional Class D design by using a self-oscillating circuit to generate pulse-width modulation. The amplifier switches at a frequency of 600 kHz, which is well above the compact disc sampling rate of 44.1 kHz. Most Class D amplifiers switch at 300 kHz or lower. In addition, NuPrime's SRC IC chip provides FPGA processing for ultra-low jitter and distortion levels. NuPrime's new linear power supply with high-efficiency toroidal transformer for reduced high-frequency noise and improved low-frequency performance completes the package. The damping effect of the NuPrime isolation feet (patent pending) absorbs and cancels vibrations that degrade audio performance. The overall result is an unrivaled transient rate and an almost shocking level of dynamic impact.

The IDA-8 achieves THD+N (Total Harmonic Distortion + Noise) levels of less than 0.005% while achieving system efficiency of up to 93%. The IDA-8's frequency response up to 50 kHz elevates vocals to emotional heights, and similarly, the upper register of the instrument mimics the shimmering heights of live performance. The IDA-8's features and specifications have few equals.

Features:

• Ultra-Linear Class A Module (ULCAM) delivers audiophile-quality sound with the dynamics, speed and efficiency of Class D. Extraordinary performance with THD+N less than 0.0015% and S/N ratio of -130dB for the preamplifier stage.
  
• The NuPrime SRC IC chip (developed together with IC supplier) provides DSP processing where the input signals are upsampled to megahertz before being down-converted to the desired sampling frequency with ultra-low jitter and distortion.
  
• NuPrime vibration-free isolation feet
  
• State-of-the-art DAC with support for USB PCM 384 and DSD256, which can also decode DoP formats via coaxial and optical inputs
  
• Analog line-out (can be used as Sub Out), volume controlled
  
• USB extension port for streaming (NuPrime Omnia Stream Mini, WR-2 or BTR-HD for blue tooth). This is a special port that provides S/PDIF signals and 5V power supply.
  
• Full microprocessor control with memory retention
  
• Four digital inputs and one stereo input for complete system flexibility
  
• Supports DSD playback with ASIO2.1 and DoP method
  
• Ultra-low-noise JFETs in the input stage for the lowest possible noise floor
  
• Volume adjustment in 99 precise steps of 0.5 dB
  
• Advanced ladder network with thin-film coupled resistors for volume control, with a single resistor in the signal path at all volume settings
  
• Individually adjustable volume on each input for precise level matching of sources
  
• Exclusive driver software for Windows
  
• Standard driver software for Mac
  
• Asynchronous transfer mode
  
• Very low power consumption in standby mode
  
• Available in black or silver anodized aluminum finish
  
• Includes remote control

• Inputs:
  
• 1 x USB PCM / DSD Digital (PCM up to 384 kHz & DSD up to DSD256)
  
• 1 x Coaxial Digital S/PDIF (PCM up to 192 kHz with support for DoP format DSD64)
  
• 1 x Optical Digital S/PDIF (PCM up to 192K with support for DoP format DSD64)
• 1 x Analog Stereo RCA (analog input will be digitized)
  
• Outputs:
  
• 1 x pair of stereo speaker outputs (binding posts)
  
• 1 x pair of stereo RCA (2V*), variable (volume controlled) output
  
• USB sampling rates: 44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz, 176.4 kHz, 192 kHz, 352.8 kHz, 384 kHz and DSD 2.8 MHz, 5.6 MHz, 11.2 MHz
  
• S/PDIF sampling rates: 44,1 KHz, 48 KHz, 88,2 KHz, 96, 176,4 KHz, 192 KHz, 384 KHz (coaxial)
• Bit resolution: 16-32 bits
  
• Output power: 100W x 2 @ 8 ohms; 100W x 2 @ 4 ohms
  
• THD+N: 0.005%
  
• SNR: 95dB
  
• Maximum output power: 280W
  
• Frequency response: 10Hz to 50kHz
  
• AC voltage: (90VAC~130VAC // 210VAC~250VAC) with voltage selector switch
  
• AC Fuse: Slow, 3A, 250VA
  
• Color: Black or silver
  
• Dimension (W x H x D): 235 x 55 x 281 mm
  
• Weight: 4 kg