NuPrime IDA-8 - Stereo Amplifier

NuPrime's hybrid amplification technology in class A+D provides substance and warmth from class A amplification and efficiency and speed from class D technology in an environment with immeasurable noise. The IDA-8's spacious, transparent, dynamic, and luxuriously structured soundstage must be heard to be believed. NuPrime IDA-8 consists of an integrated amplifier with extremely low noise and a digital-to-analog converter that decodes USB PCM 384 and DSD 256 with the convenience of wireless audio in a small, elegantly 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 thin-film resistor ladder network 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 Bluetooth). 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 backdrop.

The IDA-8's low noise level 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 with FPGA chip. Volume changes occur in 99 precise steps of 0.5 dB for each input's individually adjustable volume level. Exact level adjustment is child's play, as is the user's ability to make comparisons between different music sources.

By using discrete components in NuPrime's ULCAM circuit, the signal can be fine-tuned to reduce noise and provide maximum power. The NuPrime amplifier circuit enhances 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's sampling frequency of 44.1 kHz. Most class D amplifiers switch at 300 kHz or lower. Additionally, 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 reduces high-frequency noise and improves low-frequency performance, completing the whole. The damping effect of NuPrime's isolation feet (patent pending) absorbs and interrupts vibrations that degrade sound performance. The overall result is an unparalleled transient response 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 a system efficiency of up to 93%. The IDA-8's frequency response up to 50kHz elevates vocals to emotional experiences, and similarly the instruments' upper registers mimic the shimmering highs of live performances. The IDA-8's features and specifications have few equals. 

Features:

• Ultralinear Class A module (ULCAM) provides audiophile quality sound with Class D dynamics, speed and efficiency. Extraordinary result with THD+N lower than 0.0015% and S/N ratio of -130dB for the preamplifier stage.
  
• NuPrime SRC IC chip (developed together with the IC supplier) provides DSP processing where the input signals are sampled 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
  
• Analogue 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 Bluetooth). This is a special port that provides S/PDIF signals and 5V power supply.
  
• Full microprocessor control with retained memory
  
• 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 thin-film resistor ladder network 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 stereo RCA (2V*), variable (volume-controlled) output
  
• USB-samplingsfrekvenser: 44,1 kHz, 48 kHz, 88,2 kHz, 96 kHz, 176,4 kHz, 192 kHz, 352,8 kHz, 384 kHz och DSD 2,8 MHz, 5,6 MHz, 11,2 MHz
  
• S/PDIF sampling frequencies: 44.1 KHz, 48 KHz, 88.2 KHz, 96, 176.4 KHz, 192 KHz, 384 KHz (koaxial)
• Bit resolution: 16-32 bits
  
• Output power: 100W x 2 @ 8 ohm; 100W x 2 @ 4 ohm
  
• THD+N: 0.005 %
  
• SNR: 95dB
  
• Maximum output power: 280 W
  
• 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 (B x H x D): 235 x 55 x 281 mm
  
• Weight: 4 kg