192KHz Digital to Analog Audio Converter - Upgrade Volume Adjustable Optical to RCA with Optical & USB Power Cable, Digital DAC SPDIF TOSLINK to Stereo L/R & 3.5mm Jack

Audio Quality is excellent for a unit at this price. RCA output is rated at 3V but, in my opinion, does not reach this level. I would have preferred a higher output level to feed my HiFi system aux. input. Output level does not increase after the control is turned past about half way so disappointed.

I bought this for my tv, as the tv doesn't have a headphone jack. This DAC works as advertised, it connects to my tv via the digital audio out, and I can then use headphones to watch tv late at night. This DAC also has a volume control, which is handy as when I am plugged in, the tv volume control no longer works. The only downside of this DAC is that it seems to generate a bit of interference noise. I have to move it around to try and minimize the interference noise. Fortunately, you cannot really hear the interference noise once a movie or tv program is playing. Overall, would highly recommend this unit, it works well and was a good price.

Smartly packaged product is formed sheet steel with good slightly textured finish and clear easy white font markings. The PROZOR Digital to Analog Converter takes optical or coaxial digital audio of various formats and outputs analog audio for interfacing with external equipment. For me I wanted a headphone output from a TV that only had optical. This adapter easily setup, powered and delivered a fully adjustable level, clear and of good quality. Plenty of power to drive full size heavy, over the ear headphones. These are AKG K340 electrostatic-dynamic monsters from the 1980s. I did have to supply my own headphone adapter cable that took the 1/8 inch (3.5mm) phone (RTS) female socket and upsized it to a standard 1/4 inch to interface with my antique cans. The Device powers with 5v DC via USB micro connection on the device. Included is a micro USB to USB A (standard full sized USB 1.0/2.0 connector) approx 14 inches long. My late model 16x9 LED TV is typical of 2018 products, missing many of the input/output connections of earlier systems. Audio output is always lacking on these displays, even though there is an internal tuner that provides HD video. Most people do NOT want to use the substandard, micro "full-range" speakers included in bargain LED TV's. It's better to run analog audio to an external amplifier and heavier speakers. This D>A converter provides that connection wonderfully. Small and compact, powers to what is almost always nearby on modern video monitors, connects to optical or coaxial services. Included is also a short satisfactory optical audio cable. Sidenote, the tips of new optical audio cables have a silicone protector over the metal sleeve. This keeps scratches from the fragile fiber optic tip. Remove the silicone protector prior to cable insertion or you'll push the PC board mounted connector off it's mount. The PROZOR D>A has a red LED indicator on the rear when it's receiving 5v from USB. There is no way to turn it off from the device. That would have been a nice feature with the volume potentiometer knob. Coax input is the standard single RCA connector. There is no included coaxial cable. In addition to the 3.5mm headphone output, it also provides simultaneous consumer line level audio at the two rear RCAs. The front face volume pot does not attenuate the output of the rear line level RCAs. I've run this device for hours with no overheating or failure. It's compact and a good addition to a trouble shooting audio bag. Highly recommended.

After connecting via Optic cable my audio quality is significantly improved, and most importantly there is almost no noise mixed up with my music, making my audio experience enjoyable

very good condition

PROZOR Digital to Analog Converter 192kHz DAC output clear high fidelity sound connecting my CD player via Toslink to the audio amplifier.