Welcome Guest! To enable all features please Login or Register.

Notification

Icon
Error

Login
Bottom line with 384 upsampling....
Options
View
Go to last post Go to first unread
Previous Topic Next Topic
shadowfax  
#1 Posted : Tuesday, September 27, 2016 1:26:11 AM(UTC)
shadowfax

Rank: Member

Groups: Member
Joined: 8/16/2016(UTC)
Posts: 25
Puerto Rico
Tried that with Audirvana.... sound comes out distorted and with a lot of noise. Sounds ok up to 192 upsampling. Now, this is for ripped cd's in my Mac's drive. So what would have to be done? I kind of gathered that the current in the Placid HD has to be increased? Is this so? Thanks.
Back to top

Wanna join the discussion?! Login to your Twisted Pear Audio Support forum accountor Register a new forum account.
Back to top  
Brian Donegan  
#2 Posted : Tuesday, September 27, 2016 1:58:53 PM(UTC)
Brian Donegan

Rank: Administration

Groups: Administration, Customer
Joined: 10/24/2006(UTC)
Posts: 2,868
Location: Massachusetts, USA

Thanks: 2 times
Was thanked: 141 time(s) in 134 post(s)
That is likely the cause. The DAC draws more current at higher bit-rates.
Back to top
WWW
shadowfax  
#3 Posted : Tuesday, October 4, 2016 11:54:53 AM(UTC)
shadowfax

Rank: Member

Groups: Member
Joined: 8/16/2016(UTC)
Posts: 25
Puerto Rico
So, are there any recommendations for this? I guess this dac is being used for that by users in this forum. Would that apply to DSD also?
Back to top
Brian Donegan  
#4 Posted : Tuesday, October 4, 2016 1:25:35 PM(UTC)
Brian Donegan

Rank: Administration

Groups: Administration, Customer
Joined: 10/24/2006(UTC)
Posts: 2,868
Location: Massachusetts, USA

Thanks: 2 times
Was thanked: 141 time(s) in 134 post(s)
Try increasing the shunt current on the Placid. That usually fixes the problem, if that is in fact the problem. Try making some measurements to find out for sure.
Back to top
WWW
shadowfax  
#5 Posted : Friday, December 9, 2016 8:53:38 PM(UTC)
shadowfax

Rank: Member

Groups: Member
Joined: 8/16/2016(UTC)
Posts: 25
Puerto Rico
Hello: Pursuant to the topic at hand I increased the source current to around 685 ma and the shunt is 120 ma. The 384 kHz upsampling is less warbled with each increase of source current. I do not know what the limits of the HD and dac boards are for current, so I am afraid to increase this more..... I wonder if this might be due to an incompatibility with my JLSounds USB board. It play without a hitch up to 192 kHz upsampling even at lower a current.

So, do I keep raising the current until it plays the 384khz frequency? I am doing all this considering DSD playback which is at high frequencies.
Thanks gentlemen
Back to top
Rss Feed  Atom Feed
Users browsing this topic
GuestUser
Forum Jump  
You cannot post new topics in this forum.
You cannot reply to topics in this forum.
You cannot delete your posts in this forum.
You cannot edit your posts in this forum.
You cannot create polls in this forum.
You cannot vote in polls in this forum.

Youtube
Copyright © Twisted Pear Audio