Quantum QRT QX4


Anyone wondering whats inside one of these for the almost $3000 Nordost is asking for them? Well I owned one and took it apart, and let me tell you I was shocked!! I have never seen cheaper parts and crappy little PCB than this. I think a total of about $20 was spent on the electronics, and I am being generous. The case is by far more expensive to make. They spent more effort into making the case heavy and out of billet and extruded aluminum to give it the appearance of high end and so they could somewhat justify the price tag. It is utterly shameful what Nordost has pulled on its consumers. Thats why they have the protective sealing sticker on the chassis so no one opens it up and voids the warranty. I bought mine directly from a dealer when the Nordost rep came for a demo.
The board looked like it was a factory R&D project. Scratches all over it, a cover on the board was removed at one point leaving behind the trace of it in the left over glue. I was fuming after I opened it and witnessed the biggest ripp off in audio history. I had a Symphony Pro years ago and it blew this piece of crap out the rack.
Needless to say, even though it did provide some enhancement, I no longer have it. But before I did get rid of it I happen to make a schematic and take plenty of pictures, even built one with much needed improvements.;)
The very robust case was actually heavily softening the effect and the one inch thick sides were directing some of the energy vertically. Anyway my new version of this guy has been a huge improvement to say the least, it has 6 times the power of the QX4. Thanks Nordost ;)
dcizmok
Agear,
Indeed, it is a sad commentary when a company with Nordost's reputation is really an audio emperor with no clothes.
I have a QB4 distribution box and it works very well. I don't know about the others.
Agear

I am not new to high end audio, have had many different components through out the years but never have I seen this level of shameless greed. They have reached top of the class with this product. I cant say much better for QB4 as seeing the inside revealed nothing more than star ground configuration and the pretty box. Basically The QX4 is a Schumman resonance device and there are a handful on the market to choose from without the pricetag.
Glory

I paid $2400 for it a year ago. Dont get me wrong, it does improve the spatial imaging, but not as good as the Symphony pro did. I could place it anywhere in the room and the effects were always apparent. Not so so with the QX4. Nordost claim it to be two times as powerful than it. It is also based on the Symphony Pro which Nordost bought from Walker. Nordost clearly new what they were doing with this. There design intent was to use this unit under or between componants and hope multiple units would sell depending on placement of gear.