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Odd behaviour from PPA v4 USB card


User471
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Hi

 

I'm posting this here although it might equally belong on the DAC forum

 

Put a new PPA v4 PCI-E USB card in my Daphile music server the other day and I can "see" my DAC (amanero) but when I play music although Daphile does all the right things, no sound

 

Swap to an on board USB port on the mobo, voila, music!

 

Back to the PPA card, silence [emoji17]

 

Even more odd I tried another couple of USB DACS at least one of which has the same amanero input chip and they worked!

 

Go figure!!

 

Anyone have any idea where the issue might lie - DAC, daphile or the PPA card?

 

Cheers

 

Sent from my D5803 using Tapatalk

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I wondered if the PPA card has an issued with certain DACs myself as I was interested in purchasing a V3 but wanted to know if it would work with a Wyred 4 Sound DAC 2 DSD. I checked on the Sotm card but it looks like that card will not work with my DAC.

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If the SOtM usb card is the same one that SOtM uses in its SMS-1000u, and I never have heard that the standalone one is different, it works just fine with my W4S DAC2DSD, at least when connected from an SMS-1000u.

Living room:  Synology 218+ NAS > NUC 10 i7 > Audirvana Studio / JRiver Media Server / HQPe > xfinity Xfi Router > Netgear GS348 Switch > EtherRegen > Sonore Signature Rendu SE Tier 2 > Wyred4Sound 10th Anniversary DAC > Wyred4Sound STI-500 > Revel F32 Concertas

 

Basement:  Synology 218+ NAS > NUC 10 i7 >  Audirvana Studio / JRiver Media Server / HQPe > Xfinity xfi Router > Netgear GS348 Switch > TrendNet FMC > Sonore OpticalModule > UltraRendu > NuPrime IDA-8 > KEF LS50's

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Flashing the Amanero to latest firmware will most likely fix the problem.

The NEC chips on PPA USB cards and JCat cards do not work with older Amanero Firmware through Linux.

Amanero have addressed this with latest firmware.

Audio PC - Gigabyte H97M-D3H, i7 at 800Mhz, RAM at 800Mhz & PPA OCXO Mobo, Teradak ATX Linear for 20 pin ATX on Mobo, Paul Hynes SR7EHD 12v, 5v & 5v supply on Mobo, Stammheim 12x LT3045's for 1.3v to RAM direct supply, JCat V2 USB Card, WTFPlay Linux Audiophile Player control by MELE F10, Startech LEX to REX on 12v Paul Hynes with 2x SLC cards and out by POE to ISO/Regen, PPA Red USB Cable, Lampizator Big7, Nige design Lifepo4 powered amp, Raidho C1s.

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Cheers for that tip. Sounds like it might well be the case because I have 2 DACS with amanero chipsets and the newer one works and the older one doesn't

 

Now, how to flash the chipset in a DAC.........???

 

Sent from my D5803 using Tapatalk

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  • 1 month later...

I spoke to the guys at JCAT whose USB card also has the NEC chip. Apparently it's a bug in the chip that causes the card to report capabilities it doesn't actually have. This causes some input devices, notably the amanero, to fall over. It seems to be quite device specific. Apparently there is, or will be, a fix in the Linux kernel but clearly not in the one used by daphile at present

 

Sent from my D5803 using Tapatalk

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If you want to listen to music on Linux player which has a fix applied for earlier Amanero try http://www.computeraudiophile.com/f11-software/wtfplay-27786/

Audio PC - Gigabyte H97M-D3H, i7 at 800Mhz, RAM at 800Mhz & PPA OCXO Mobo, Teradak ATX Linear for 20 pin ATX on Mobo, Paul Hynes SR7EHD 12v, 5v & 5v supply on Mobo, Stammheim 12x LT3045's for 1.3v to RAM direct supply, JCat V2 USB Card, WTFPlay Linux Audiophile Player control by MELE F10, Startech LEX to REX on 12v Paul Hynes with 2x SLC cards and out by POE to ISO/Regen, PPA Red USB Cable, Lampizator Big7, Nige design Lifepo4 powered amp, Raidho C1s.

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