The Path to Audio Realism

TNT-Audio Dec 2019 Review Here

Read latest user feedback on UK audio forum

supercapacitor ISO-DAC tour here

supercapacitor power supply tour ISO-PS here

Ciúnas Audio launched three lines of products since its inception (other products came before such as JKDAC, JKSPDIF). First was the line of non-isolated, battery powered DAC & USB-SPDIF converter. Building on this, USB isolation was added to give the ISO range of DAC & USB-SPDIF converter & USB hub - ISO-DAC, ISO-SPDIF & ISO-HUB (as well as ISO-PS). And now battery power has been replaced by supercapacitor power

A fundamental feature of the Ciunas line of products (Ciunas DAC & SPDIF) is the use of a very safe battery technology ( now supercapacitor) that allows direct powering of digital circuits. This direct power (no voltage regulator on the output), delivers the lowest dynamic noise, most stable power to digital circuits resulting in reported listening impressions of stability & solidity to the soundstage. See reviews

Building on this ultra clean & stable power as the core, the next product line introduced isolated USB signalling - the ISO-HUB device seen in the picture right at top left is the core device. This is just like a normal USB hub except that the USB signals are isolated & cleansed / reformatted. Significant sonic improvements were reported when USB audio devices were connected using this HUB - for instance a USB DAC or USB to SPDIF converter connected through this HUB. One reviewer said "digital done right" - see reviews

You can connect any USB device to these ports just as if they were internal computer USB ports & use them like you would any other USB connected device - the only difference is that they are carrying isolated & cleansed USB signals.

The ISO-DAC & ISO-SPDIF add DAC or SPDIF converter functionality to this isolated HUB & take advantage of the internal isolated/cleansed USB signals. As can be seen in the picture stereo RCA outputs are included on the ISO-DAC & a BNC (or RCA) SPDIF output included on the ISO-SPDIF.

Audio Realism

What listeners report is that all the natural & subtle audio cues that are on recordings are accurately reproduced - the room ambience, the inner texture within bass, cymbal brushing, etc - the textures of sounds that we hear in real life but is so often masked or curtailed in digital audio replay. This is not the usual hyper detail associated with digital audio which is accompanied by sibilance & harshness in the highs. It is the sound of high end turntable replay & a far more captivating experience than the usual digital audio reproduction. Digital audio can often be a case of all the notes in the right place but ultimately uninteresting sound - listeners report these Ciúnas devices make listening to audio interesting. They report the life & realism,  interplay & emotion, texture & room acoustic that was always on the recording. Ciúnas devices seem to bring the audio scene alive, just like a great camera lens brings lifelike realism & detail to visual scenes.


PS Dynamic Noise

Ciúnas devices have always focused on reduction of dynamic noise in pursuit of enhanced musicality. We discovered that DIRECT battery power (now supercapacitors - no voltage regulators between it and circuit being powered) confers ultimate power supply stability - the foundation of every audio replay device - see The technology behind the Ciúnas


USB Noise

A source of further noise, we focused on USB isolation & reformatting of the USB signal as it was discovered this leads to a further increase in this musical realism - see Optimised USB Audio

30 day trial

Take it for a 30 day home trial & discover this for yourself - you won't return it as the testimonials and Press attest to.