Subwoofer crossover

..if the server offers that feature...I am not aware of any high end servers (e.g, Aurender, Lumin, Innuos et al) doing it and not interested in PC-or Mac- servers.

The point of this is to take the bass load off the tube amp and avoid the latency incumbent on a high voltage hook-up via speaker wires

Thank you moderator for preventing @djones51‘s hijacking the thread, he really has not very much to contribute to any topic from my experience

@fuzztone

unfortunately no high speed USB out, so no DSD or sampling above 24/192. Thank you, though best digital answer so far

@erik_squires

Yep, that works. thank you very much, particularly since it also takes care of vinyl. One would though think that this would best be achieved in the digital rather than analogue domain.. I guess digital still has some growing up to do.

@kr4 

I don‘t agree: I used to run a tricked out Mac Mini from now defunct mach2mini running Puremusic in upssmpling mode. Have now moved on to an Innuos Zenith Mk3 and the difference is night and day. Power supplies as well as noise and vibration insulation are mission critical in digital playback.
And: no, the DAC‘s error correction does not sufficiently address RMI/EFI and ground borne noise. 

@djones51,

it never is a pleasure to be lectured by someone who doesn‘t know what he is talking about and your constant harrassing of others is getting old really fast.
to wit: I am running an Innuos Zenith Mk3 via intona Isolator into a Antelope Audio Zodiac Platinum with Antelope 10m Rubidium clock into a Wavac EC300b. Analogue is Zyx Universe on a Dynavector DV507 Mk2 into a Zyx Artisan. In terms of resolution, that is as high as it gets and your comments about lack of resolution via tube amps is as unqualified as it gets. Your contribution is entirely negative and you obviously have absolutely nothing to contribute. I suggest you seek counsel.

If you had read the original post, you would have noticed that the idea to do the cross over in the digital domain was precisely to fight latency and distortion issues of the high voltage route. As the Zodiac has a digital output that could be used for the sub woofer, the idea of a digital crossover in the USB connection was to only pass non-bass signals to the tube amp. In that regard, @erik_squires suggestion to use a capacitor is really useful, all the more since it avoids the un-slaving of the server from the 10m clock that would result from an insertion of a further device in the USB connection. Unfortunately Innuos does not provide a BNC clock input.