Both the digital and the analog circuits are highly optimized and based on techniques developed over 40 years of NAD audio engineering excellence. The digital inputs cater to many different digital sources. SPDIF inputs support balanced AES/EBU, 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.
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 and above.
We pack a lot of premium high spec parts inside the D 1050. But premium parts need optimal implementation to get the actual performance they promise. This is where NAD expertise with both digital and analog 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 soldered with lead-free high silver content solder. These details all contribute to the remarkable performance of this advanced DAC.
Analog outputs are fixed and include both balanced and single-ended connections. We also include a premium quality headphone amplifier output that includes a high quality volume control. Output impedance is extremely low, minimizing the effect of connecting cables and keeping noise vanishingly low.
"What the NAD D1050 really brings to the table is a quality Cirrus Logic DAC with very good sound quality, in a small package, and all at a reasonable price. The NAD D1050 makes an excellent choice for a budget USB DAC."
Source/Read full review: HomeTheaterHiFi.com, September 2014
"This is one of the best, I can hear singing with the musicians, it is good with leading edges and extremely expressive."
Source: Hi-Fi Choice, January 2014
"A brilliant box of tricks that holds plenty of appeal for those in the hunt for a desirable desktop DAC"
Source/Read full review: What Hi-Fi?, November 2013
"NAD has worked some wonders here, bringing some expensive components and solid circuitry into a fairly small and remarkably inexpensive box (in audiophile terms, at least)."
Source/Read full review: Truly Net, September 2013, Spelling Out Solid Sound
"Its bass response which is big, meaty, and fitfully bouncy while retaining a nice sense of tone... Damn, this NAD is fun to listen to!"
Source/Read full review: Audiostream, August 2013, NAD D 1050 USB Digital to Analog Converter