[Somatic]

Try a simple wire to dave and grounding and its gone.it comes from the display chip thingy icw the unshielded rca input and prob some noise that bounces in that kind of situation. But thats were groundings are for so fixed.

Bingo. Right on the money. Sound went away 100%. Sounds very nice. Not sure if all Dave's could benefit in earthing it to the chassis. Thanks!

 

[chesebert]

Someone should just put the Dave in a new properly sized and dampened case and separate all the internal modules in their separate compartments. While at it they can toss out the $14 SMP and install a proper power supply (SMP or Linear should both be fine) - maybe the dac won’t sound thin, anemic and unmusical with a real power supply and better electrical noise isolation

 

[Somatic]

Someone should just put the Dave in a new properly sized and dampened case and separate all the internal modules in their separate compartments. While at it they can toss out the $14 SMP and install a proper power supply (SMP or Linear should both be fine) - maybe the dac won’t sound thin, anemic and unmusical with a real power supply and better electrical noise isolation

Dem fightin words ... hehe

 

[Somatic]

Someone should just put the Dave in a new properly sized and dampened case and separate all the internal modules in their separate compartments. While at it they can toss out the $14 SMP and install a proper power supply (SMP or Linear should both be fine) - maybe the dac won’t sound thin, anemic and unmusical with a real power supply and better electrical noise isolation

What are your favorite DACs? I'm curious. Would like to check them out. Thanks.

 

[chesebert]

What are your favorite DACs? I'm curious. Would like to check them out. Thanks.

Playback Designs, Emm Labs, Linn and Weiss.

 

[Somatic]

On measurements it's just possible to resolve it, but you are looking at something comparable to the FFT noise floor, so insignificant.

Nobody has ever reported hearing it though, and that's consistent with the measurements. This sounds like an issue solely with the Feliks - perhaps a grounding or RF issue. Perhaps the Feliks is picking up EMC multiplexing noise direct from the display via the air.

Just wanted to give you an update on this. I grounded the Dave and the LCD high pitched whine at very high volumes completely disappeared.

 

[Caberto]

Keep the power supply in order, with a dedicated meter only for the Hi Fi system, keep the wiring in order.... Take care of every shape
Of mechanical vibration and keeping as far as possible the Dave from Mscaler made me reach an almost definitive result .... At least for a few years!

 

[saudio7]

How do you ground Dave, to one of BNC or directly to case?

 

[MvRBE10]

How do you ground Dave, to one of BNC or directly to case?

Bnc, case does not matter its all on the same plain ground.

 

[Somatic]

Bnc, case does not matter its all on the same plain ground.

I noticed this as well. I just used one of the XLR case screws as you did. BNC works np

 

[Icenine2]

Keep the power supply in order, with a dedicated meter only for the Hi Fi system, keep the wiring in order.... Take care of every shape
Of mechanical vibration and keeping as far as possible the Dave from Mscaler made me reach an almost definitive result .... At least for a few years!

Nice setup! Which power cord is that for the Dave you're using? Thanks!

 

[Mediahound]

FWIW, no new DAVE any time soon. In this video, Rob Watts states that the product they are coming out with next is an Ultima DAC costing around $100k!:

 

[Caberto]

Nice setup! Which power cord is that for the Dave you're using? Thanks!

Nice setup! Which power cord is that for the Dave you're using? Thanks!

Thanks, the cable is Crystal Cable
Silver Conductor, insulation Kapton and Teflon.

 

[GuiltyRocker]

FWIW, no new DAVE any time soon. In this video, Rob Watts states that the product they are coming out with next is an Ultima DAC costing around $100k!:

$100k? I will not get that, at some point it gets silly and if that's the price I am not even looking at it.

 

[Mediahound]

$100k? I will not get that, at some point it gets silly and if that's the price I am not even looking at it.

Well Chord has always had an expensive flagship Ultima line. Their current Ultima monoblock amp retails for something like $88k. for example.

It's when that tech. later trickles down their lines that most of us mere mortals can afford to benefit with more reasonably priced products.