NuPrime BTR-HD Bluetooth Adapter “The NuPrime BTR-HD lets you add Bluetooth to any DAC or receiver that has an HDMI, Toslink, or coaxial S/PDIF input.” “It supports Qualcomm aptX HD, which is one of the highest resolution Bluetooth codecs currently available.” “Using my iPhone 13 mini, I was able to connect to the BTR-HD on the first attempt, and I was impressed by the sound quality.” “If you want to add Bluetooth capabilities to your current rig, the NuPrime BTR-HD delivers a very usable solution.” “It’s compact and portable, allowing you to easily share your music on any system with a digital input.”

NuPrime Hi-mDAC Review
– NanoTechnos, headfonia.com

“…
Hi-mDAC achieved something quite remarkable. First and foremost, it drives my Audeze LCD-3 and gives me “commanding bass” as stated on the website. Where the Sennheiser HD-800S felt a little cramped last time, the Audeze sounds quite the opposite with a wide sound-stage and delightful lows….
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The Hi-mDAC is fast and precise, at any level of volume. The layering is impressive, the sound feels natural, effortless and I think NuPrime really did a good job in term of tuning. This isn’t a DAC that’ll wow you right off the batch, on the contrary, the more you’ll listen to it the more you’ll get to love it.
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Tonality
Highs : clean and transparent. The Nuprime achieves a good job there, with a good amount of air. Trebles are precise, never harsh and with the right headphone, you’ll get a level of comfort that I wouldn’t believe possible a few years ago. It’s never dry, never sibilant, never boring. Very impressive!
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Mids : excellent layering and great spaciousness. The mids blends perfectly with the rest of the spectrum. The soundstage is excellent, sometimes astounding until you reach the highest level of volume. If so, the mids tend to fall behind the highs and lows, giving us an odd V-Shap signature. Still, this is only if you really push the DAC to its limit.
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Lows : fast and powerful. Bass is impressive, very impressive. Usually, this is where small DAC falls short, but this is never the case with the m-DAC. It’s fast, powerful and with a good headphone, you’ll be rewarded by deep, tight, toe-tapping bass. Plus side, it never oversteps on the other frequencies…”

– Guillaume Fourcadier, on-mag.fr Translated from French In the middle of the big living room DAC-headphone amps from the NuPrime brand, the little Hi-mDAC ant is slowly entering the world of accessible audiophile products. This device is admittedly just a mini sound card with USB-C input and simple volume control. Yes, but it could well become a small reference. Simple little ingot, modern and unsurprising Difficult to discuss the appearance of the NuPrime Hi-mDAC as it bets on formal simplicity. It takes the appearance of a small block (or rather 2 assembled blocks) of anodized and slightly chamfered aluminum, embellished with a glass front housing only 2 LEDs (one to indicate a PCM reading, the other DSD), a USB-C socket on one side and a 3.5 mm mini-jack output on the other. There’s nothing to complain about in terms of build quality, except (perhaps a problem with the review unit) the hole for the jack plug, which is very slightly larger than the plug.   The NuPrime Hi-mDAC is “Plug and Play” type. Connection to an Android (OTG), iOS (with the Camera Kit) or PC/MAC smartphone allows you to immediately use the product as a sound card / headphone amplifier. If NuPrime recommends installing dedicated drivers on PC, in practice the product is perfectly functional without. Let us clarify a point that has earned us some questions: the Hi-mDAC only turns on if a mini-jack (analog or optical digital) is connected, in order to save power. A not stupid idea, but which can easily make believe that the device is defective. The interface is practically non-existent, and therefore devoid of any artifice or more or less useful sound options. The Hi-mDAC sports only a LED to indicate the type of file, and two buttons for adjusting volume, curtain. Rhythmic authority and attention to detail If we were necessarily expecting good performance from its

– Michael Piskor, headfonics.com A few weeks ago, a swarm of small mini-DAC’s arrived at my door.  One of these was the NuPrime Hi-MDAC. Priced at a modest €139 I consider this one to be the most interesting of this current batch. The competition is blazing hot for portable mini-DAC’s that are intended for usage with smartphones, so I am extremely curious to get the ball rolling and see what NuPrime has to offer. THE PACKAGE AND ACCESSORIES The box container is quite small and modest, nothing fancy to report there.  Inside, a small folder piece of paperwork, the Hi-mDAC, and a USB cable. So, NuPrime included a treasure trove of interconnects with their S8 mini DAC, I am a bit underwhelmed to see just one USB-C included with this mini DAC. Is it a big deal?  Nah.  Not really.  I think most audiophiles have their own interconnects by now, although it is an issue for anyone else who does not have a USB to a Lightning adapter or a phone that rocks the original USB-mini port. DESIGN No question about it, this NuPrime Hi-MDAC has the best build quality in a small form factor DAC that I’ve ever seen…and dang, I own so many and have reviewed so many. They decided to just carve out a chunk of solid metal and toss some volume buttons on it.  Seriously, this little thing is heavy and so dense feeling. Oddly, it is also the biggest of the small form factor DAC’s that I have ever seen…it is a chunky boy for sure! But, in all honestly, at this size, nobody cares. It is still absurdly tiny. True, most of the other tiny form factor DAC’s are slimmer, but none of them have the power this NuPrime shells out. The volume buttons feel rock solid…or…metal