This item has previously been used. There are no scars, only small blemishes on the rear sides. The product is in excellent condition.
On a scale of 1-10 we give it 7.5/10.
The NAD D 1050 USB DAC is the best way to add Computer Audio and HD Digital to your component hi-fi system. Both the digital and the analogue circuits are highly optimized, and are based on techniques developed and proven over NAD’s history. The digital inputs cater to many different digital sources. SPDIF inputs support both coaxial and optical connectors. The USB input is special; supporting USB Audio Codec 2.0 allowing for 192kHz signal transmission, its asynchronous operation mode uses the D 1050’s high precision clock to control the output of the connected USB device for lowest possible jitter. A choice of true balanced or low impedance single-ended outputs allows connection to a broad range of preamps. A discrete low impedance headphone amplifier rounds out the capabilities of this compact and affordable DAC.
The D 1050’s digital inputs allow you to connect many different digital sources. SPDIF inputs support both coaxial and optical connectors. The USB input is very special—its asynchronous operation mode uses the D 1050’s high precision clock to control the output of the connected USB device for lowest possible jitter. It also supports USB Audio Codec 2.0 allowing 192kHz signal transmission via USB.
Making it Count
We packed a lot of premium high spec parts inside the D 1050 USB DAC. But premium parts need optimal implementation to get the actual performance they promise. This is where NAD’s expertise with both digital and analogue circuits shows its true value. Ultra short impedance-controlled signal paths are made possible by multi-layer circuit boards and micro-miniaturized surface mount components which are soldered with lead-free high silver content solder. We also found that we could further reduce noise by isolating the power supply from the sensitive analog circuitry by using a highly effi cient external type. These details all contribute to the remarkable performance of this advanced DAC.
Magic from a DAC
The digital processing of the D 1050 features Delta/Sigma architecture with active oversampling filters. This technique effectively reduces out of band noise while maintaining linear phase response and virtual elimination of filter ringing in the pass band. This assures detailed and extended high frequency response while taking full advantage of the extended response of recordings sampled at 88.2kHz, 96kHz, 172.4kHz and 192 kHz. Separate precision clocks fed from pristine DC supplies keep jitter (digital timing errors) to an absolute minimum. Everything is bit perfect; we do not upscale or downscale sample rates, and the incoming sample rate is indicated on the front panel display.
The Perfect Mix
Analogue outputs are fixed for highest resolution and include both balanced and single-ended connections. The D 1050 also includes a premium discrete headphone amplifier output with a high quality volume control. Output impedance is extremely low, minimizing the effect of connecting cables and keeping noise vanishingly low.
GREEN, GREEN, GREEN!
In designing our D 1050, our NAD team focussed on finding new technologies that can improve musical performance while requiring less power to operate and fewer non-renewable resources to manufacture. The D 1050 is a DAC you’ll be proud to own.