JCAT Femto USB Card


I would like bring awareness to something that has drastically changed my computer audio experience: the JCAT Femto USB card.

The USB was very easy to install specially since Win 10 Pro recognizes the card without installing a driver - true plug-n-play. I was initially unimpressed with the sound and decided to burn in the card by continuously feeding signal through it for a week. OK, now I'm impressed. The imaging is so surefooted/solid and are emerging from a black background that I'm now experiencing my system in a way I have not experienced before. Even bass and midbass produces a solid image. The soundstage has become well layered and has grown a bit in height possibly due to increased midrange clarity. I thought my computer setup was excellent which is why I did not anticipate such a great improvement. My system is very revealing and all components have been modified with upgrades such as capacitors, resistors, diodes, fuse swaps, etc. This upgrade is a large step toward realism and allows my system to show off it's capabilities. The JCAT USB Femto card is highly recommended.

I ordered from the highend-audiopc website and had a positive purchasing experience.

It's good to see new products in the small PC audio market. Hopefully, in time, we'll see better competition and prices.
c_avila1
I forgot to mention I am using a HDplex LPS in addition to the Mojo.  Compared to new tubes, speaker cables, etc. I just didn't experience the same level of improvement for the money, but as I mentioned before it was enough that I can't possibly go back :P
@npdang                      Just reading about your experience With the HD Plex supply. If I can give you some advice it would be to ditch the cables you received from HP Plex and and replace them with better ones. I now have silver core cables feeding my J Cat cards and it is a huge difference,give it a try you will be pleasantly surprised.
@npdang A single USB output on the JCAT cannot be powered by the Mojo voltage regulator via molex connector and LPS simultaneously. Disconnect the molex cable from the USB card and make sure that the jumper on the USB card is set to the appropriate position to feed power through the external linear power supply. 

This bears repeating: Disconnect the molex connector from the JCAT USB card and feed it 5 volts from the LPS.