thank you for your thoughts and kindness, so we would like to offer you a unit for free as a small thank you
Hereby hangs the tale. If you could work out what the acceptable parameters of a usb stream are, then why not test various source devices with various dacs to see how they stand up. I have never seen this.
I'm sure that's true, it's more the question of what difference it really makes which bothers me.
Yes. THis device looks like it does the same thing as a Regen, although much cheaper ($99 or annoyingly £90!)
Yup. I'm especially dubious about the people bodging around with windows . Over on the slimdevices forum there were lots of IT professionals who made the point that if you were trying to make a server/player run efficiently (with specific targets) you would start with a linux operating system containing only those elements you actually need.
This is what I would like to see demonstrated.
Just to clarify: is there one unit with all 3 cascaded devices, or is the idea to have 3 separate devices (with 3 separate plugs) one after the other.the elephant in the room to ignore the multitude of problems posed by connecting a computer to the audio system. I've always stressed that the RF and Jitter should be dealt with BEFORE they are allowed to enter the DAC enclosure - this holds true for the MDAC and FDAC.
The design is a quick task, the production will be interesting, but I'm really keen to "send a simple design down the production line before the FDAC PCB's" so it makes this little project even more interesting.
If there is significant interest then it will take less then a week to design the PCB.
As each USB Hub device only offers a certain "limited" level of attenuation I'll cascade 3 devices in series each with there own PSU and Clock interface, this will add extra cost - but its the correct way to design the board.
Lets to a proper job of this
I'll use these RF screen tins for each Cascaded attenuation stage and the Master clock circuit:-
http://www.teko.it/en/prodotti/famiglia/RF/serie/49
So the design will look something like this:-
......
Development fee GBP50 + unit sold at cost say around GBP80 payable once we start to manufacturer the PCB's.
If we have say 20 PFM'ers interested then I'll launch the project and spend an hour or 2 designing the PCB each night.
I'll happily spring £130 to see a full set of test results, with the unit as a bonus. I would not want to delay the FDAC though. That said a nice devialet phantom is beginning to appeal.If it can be demonstrated to bring improvement then I'm sure Adam will be interested - I understand Adams scepticisms of all things HiFi as this industry has degenerated into charlatan ex-caravan owners selling cables, "energy" crystals and anything that can be constructed in a garage (now vacant since selling the Caravan to the local Meth lab dealer)!
I'll obviously post full test and measurement result
IN a world in which asynch usb requires 3 cascaded sets of usb regeneration to work, I would imagine that anything less than 5k on a S/PDIF cable was madness.
