IDA-8 – Digital Integrated Amplifier

IDA-8 – Digital Integrated Amplifier

£940.00

NuPrime’s new Class A+D hybrid amplification technologies deliver the substance and warmth of Class A amplification and the efficiency and speed of Class D technology in a milieu of un-measurable 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 ultra-low-noise integrated amplifier and digital-to-analog converter that decodes USB PCM 384 and DSD 256 with the convenience of wireless audio in a small, handsomely designed home stereo component.

Ultra Low Noise Class A+D Integrated Amplifier with DAC and Wireless Port

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Description

With all stages in one chassis, the IDA-8 avails itself of the shortest possible signal paths in order to facilitate vanishingly low levels of noise and distortion for a black-velvet background to music. The listener’s initial reaction might very well be “I can’t believe my ears!”

The IDA-8’s low noise floor is further complimented by an innovative volume control based on a thin-film resistor design that positions 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 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.

 

By utilising discrete components in NuPrime’s ULCAM circuit, the signal can be fine tuned to reduce noise and provide maximum power. The NuPrime 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, well beyond the compact disc’s 44.1kHz sampling rate. Most class-D amps switch at 300kHz or lower. In addition, NuPrime’s SRC IC chip provides FPGA processing for ultra-low jitter and distortion rates. Completing the ensemble is NuPrime’s new linear power supply with its high-efficiency toroidal transformer for reduced high-frequency noise and strengthened low-frequency performance. The damping effect of the NuPrime isolation feet (patent pending) absorbs and cancels vibrations that degrade audio performance. The overall result is unprecedented transient speed and an almost shocking level of dynamic impact.

 

The IDA-8 achieves Total Harmonic Distortion + Noise (THD+N) levels of less than 0.005% while achieving a system efficiency of up to 93%. The IDA-8’s frequency response to 50 kHz elevates vocals into emotional experiences; similarly, instrumental upper registers mimic a live performance’s shimmering heights. The IDA-8’s features and specifications have few equals. Just one audition will convince you that the IDA-8’s performance and sophisticated styling are rarely duplicated at any price point.

Features

– Ultra-Linear Class A Module (ULCAM) achieves audiophile-quality sound with Class-D’s dynamics, speed and efficiency. Extraordinary result of THD+N lower than 0.0015% and S/N ratio of -130dB for the preamp stage.
– NuPrime SRC IC chip provides FPGA processing with ultra-low jitter and distortion
– NuPrime vibration-free isolation feet (patent pending*)
– State-of-the-art DAC supporting USB PCM 384 and DSD256, that is also capable of decoding DoP formats via coaxial and optical inputs
– Analogue line-out (can be used as Sub Out), volume controlled
– Extension port for Bluetooth dongle (included) or optional Wi-Fi receiver (WR-100 or compatible D-Stream products). This is proprietary port that provides S/PDIF signals and 5V power.
– Full microprocessor control with memory retention
– Four digital inputs and one stereo input for complete system flexibility
– Supports DSD native playback by ASIO2.1 and DoP method
– Ultra-low-noise JFETs in the input stage for the lowest possible noise floor
– Volume adjustment in 99 precise 0.5dB increments
– Advanced, thin-film switched-resistor ladder network for controlling volume, with a single resistor in the signal path at any volume setting
– 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 on Standby Mode
– Available in black or silver anodised aluminium finish
– Includes remote control

Reviews

When I’d hooked up the Definitive Technology StudioMonitor 45 speakers to the IDA-8 and begun playing music, I realized that the NuPrime was unlike any other entry-level amplifier I’d ever had in my system. Everything immediately sounded more precise and controlled…

… the little IDA-8 sounded so refined and powerful that I soon decided that, to get a true measure of its sound, I needed to move it into my reference system. In that system I had a variety of high-end but still high-value speakers to use with the NuPrime IDA-8: the KEF R900, Definitive Technology Mythos ST-L, and GoldenEar Technology Triton Five. Even with those floorstanders, the IDA-8 was able to tightly control the low frequencies in Lorde’s bass-laden Pure Heroine (24/48 FLAC, Lava Music/Republic). The IDA-8’s midrange was also something special: exceedingly clean but very full, reproducing voices with clarity and presence while also providing their full weight and body. With the IDA-8, I felt I was hearing everything in Susan Wong’s 511 (24/96 FLAC, Evosound) — not something that I think I have ever said before about an integrated amp costing under $1000…The NuPrime’s sublime midrange allowed voices to float effortlessly in mid-air…

…It sounds fantastic, has plenty of power to drive any reasonably efficient loudspeaker to room-filling levels, it’s compact, and, best of all, it costs less than $1000…the NuPrime IDA-8 was so good that it seemed almost a shame to extract it from my reference rig and reinstall it in my second system, where it will remain as my new budget reference amplifier. It’s one of the best deals available in audio today…” – RODGER KANNO – SOUNDSTAGEEXPERIENCE.COM (read in full here)

 

 ..The IDA-8 conveyed the music’s richly woven textures as well as its individual parts. Soundstaging was deeper and wider than I expected for an amp in this price category, with precise instrumental placement. Background noise was also shockingly low; the IDA-8 boasts an impressive 95dB signal-to-noise ratio…

…the IDA-8 is a winner, and a force to be reckoned with in its category (and beyond it)…it brought warmth to its clean and clearly resolved presentation of digital sources to…Though a touch dark in character (à la Class D), it delivers substance and warmth with A well-conceived Class A/Class D hybrid that doesn’t want for power or clarity, the IDA-8 ought to find itself on the audition short list of a wide range of hi-fi hobbyists, from newbies to more experienced audiophiles…” – JULIE MULLINS – THE ABSOLUTE SOUND (read in full here)

Specificatons

  •  Inputs:
    • 1 x USB PCM / DSD Digital (PCM up to 384kHz & DSD up to DSD256)
    • 1 x Coaxial Digital S/PDIF (PCM up to 192K supporting DoP format DSD64)
    • 1 x Optical Digital S/PDIF (PCM up to 192K supporting DoP format DSD64)
    • 1 x Bluetooth (included) or WiFi receiver device (optional)
    • 1 x Analogue Stereo RCA (analog input will be digitised)
  •  Outputs:
    • 1 x pair of stereo speaker (binding posts) output
    • 1 x pair of stereo RCA (2V*), variable (volume controlled) output, full range
  • 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)
  • Bluetooth sampling rate: 48kHz
  • Bit Resolution: 16-32-bits
  • Power output: 100W x 2 @ 8 Ohms; 100W x 2 @ 4 Ohms
  • THD+N: 0.005%
  • SNR: 95dB
  • Peak Output Power: 280w
  • Frequency Response: 10Hz to 50kHz
  • AC voltage: (90VAC~130VAC // 210VAC~ 250VAC) With Voltage Select Switch
  • AC Fuse: Slow-blow, 3A, 250VA
  • Weight: 4.3kg
  • Dimensions: 281 x 235 x 55mm
  • Colours: Black, Silver

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Manual
Manufacturer Website

 

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