9 Pages<12345>» Go to Page...

DC offset playing DSD files - felipe Options  Watch this topic  Print this topic  Atom Feed  RSS Feed View » Normal Threaded

Previous Topic Next Topic

felipe		#41 Posted : Thursday, May 21, 2015 8:58:14 AM(UTC)
Rank: Member Groups: Member Joined: 12/6/2009(UTC) Posts: 323 Location: Catalonia new Europe state Thanks: 4 times Was thanked: 1 time(s) in 1 post(s)		OK thanks.
User Profile View All Posts by User View Thanks

felipe		#42 Posted : Sunday, February 14, 2016 12:18:44 PM(UTC)
Rank: Member Groups: Member Joined: 12/6/2009(UTC) Posts: 323 Location: Catalonia new Europe state Thanks: 4 times Was thanked: 1 time(s) in 1 post(s)		Amanero updated but still same problem. Edited by user Sunday, February 14, 2016 2:30:32 PM(UTC)  | Reason: Not specified
User Profile View All Posts by User View Thanks

felipe		#43 Posted : Monday, February 15, 2016 11:44:14 AM(UTC)
Rank: Member Groups: Member Joined: 12/6/2009(UTC) Posts: 323 Location: Catalonia new Europe state Thanks: 4 times Was thanked: 1 time(s) in 1 post(s)		Please help.
User Profile View All Posts by User View Thanks

Russ White		#44 Posted : Tuesday, February 16, 2016 3:48:07 PM(UTC)
Rank: Administration Groups: Administration, Customer Joined: 10/24/2006(UTC) Posts: 3,979 Location: Nashville, TN Thanks: 25 times Was thanked: 89 time(s) in 83 post(s)		You could add an output cap - but I can't say I have ever seen any DC on the outputs from DSD input.... Maybe from the source material - PC?
		WWW
User Profile View All Posts by User View Thanks

felipe		#45 Posted : Tuesday, February 16, 2016 4:30:39 PM(UTC)
Rank: Member Groups: Member Joined: 12/6/2009(UTC) Posts: 323 Location: Catalonia new Europe state Thanks: 4 times Was thanked: 1 time(s) in 1 post(s)		Of course I tried an output cap but still sounds bad, follow Intact Audio thread http://www.intactaudio.com/forum/viewtopic.php?p=6696#6696
User Profile View All Posts by User View Thanks

felipe		#46 Posted : Tuesday, February 16, 2016 4:43:10 PM(UTC)
Rank: Member Groups: Member Joined: 12/6/2009(UTC) Posts: 323 Location: Catalonia new Europe state Thanks: 4 times Was thanked: 1 time(s) in 1 post(s)		Yes source material is PC DSD files, the most strange thing is when I use stepped attenuator configured as ladder 100K before the ECC81 mu-follower or before the 26 tube preamp the DSD files sounds good.
User Profile View All Posts by User View Thanks

felipe		#47 Posted : Tuesday, February 16, 2016 7:10:53 PM(UTC)
Rank: Member Groups: Member Joined: 12/6/2009(UTC) Posts: 323 Location: Catalonia new Europe state Thanks: 4 times Was thanked: 1 time(s) in 1 post(s)		Precisely I bought Legato 3.1 to avoid caps on the signal way.
User Profile View All Posts by User View Thanks

Russ White		#48 Posted : Tuesday, February 16, 2016 8:08:04 PM(UTC)
Rank: Administration Groups: Administration, Customer Joined: 10/24/2006(UTC) Posts: 3,979 Location: Nashville, TN Thanks: 25 times Was thanked: 89 time(s) in 83 post(s)		Try a different DIP configuration? 6-bit fully differential maybe? I can't replicate DC at the outputs (either balanced or SE) with DSD... Can you show a picture of the configuration and wiring perhaps? Cheers! Russ
		WWW
User Profile View All Posts by User View Thanks

Russ White		#49 Posted : Tuesday, February 16, 2016 8:09:37 PM(UTC)
Rank: Administration Groups: Administration, Customer Joined: 10/24/2006(UTC) Posts: 3,979 Location: Nashville, TN Thanks: 25 times Was thanked: 89 time(s) in 83 post(s)		Also you could check this without the legato just by playing DSD silence and measuring the DC voltage across the DAC's balanced outputs Maybe your playback software is doing something? Edited by user Tuesday, February 16, 2016 9:02:21 PM(UTC)  | Reason: Not specified
		WWW
User Profile View All Posts by User View Thanks

felipe		#50 Posted : Wednesday, February 17, 2016 8:55:53 AM(UTC)
Rank: Member Groups: Member Joined: 12/6/2009(UTC) Posts: 323 Location: Catalonia new Europe state Thanks: 4 times Was thanked: 1 time(s) in 1 post(s)		Originally Posted by: Russ White Also you could check this without the legato just by playing DSD silence and measuring the DC voltage across the DAC's balanced outputs Maybe your playback software is doing something? Without the Legato palying DSD files there is offset in BIII: -Between GND & + Right channel +1.310VDC -Between GND & - Right channel +2.170VDC -Between GND & + Left channel +0.875VDC -Between GND & - Left channel +2.614VDC -Between + & - Right channel -0.870VDC -Between + & - Left channel -1.740VDC Black DVM lead connected to - output when measured between + & - outputs, black lead DVM connected to GND when measured between GND & +, GND & -
User Profile View All Posts by User View Thanks

felipe		#51 Posted : Wednesday, February 17, 2016 9:04:19 AM(UTC)
Rank: Member Groups: Member Joined: 12/6/2009(UTC) Posts: 323 Location: Catalonia new Europe state Thanks: 4 times Was thanked: 1 time(s) in 1 post(s)		Originally Posted by: Russ White Try a different DIP configuration? 6-bit fully differential maybe? I can't replicate DC at the outputs (either balanced or SE) with DSD... Can you show a picture of the configuration and wiring perhaps? Cheers! Russ DIP configuration is: SW1 OFF 1,2,3,4,6, 8 ON 5,7 SW2 OFF 1,2,3,4,5,6,7 ON 8 [img][/img]
User Profile View All Posts by User View Thanks

felipe		#52 Posted : Wednesday, February 17, 2016 9:22:31 AM(UTC)
Rank: Member Groups: Member Joined: 12/6/2009(UTC) Posts: 323 Location: Catalonia new Europe state Thanks: 4 times Was thanked: 1 time(s) in 1 post(s)		Link rear side of BIII showing there is no jumpers because I use Sidecar & S/PDIF-4 board. [img][/img]
User Profile View All Posts by User View Thanks

felipe		#53 Posted : Wednesday, February 17, 2016 10:07:08 AM(UTC)
Rank: Member Groups: Member Joined: 12/6/2009(UTC) Posts: 323 Location: Catalonia new Europe state Thanks: 4 times Was thanked: 1 time(s) in 1 post(s)		Originally Posted by: Russ White Try a different DIP configuration? 6-bit fully differential maybe? Cheers! Russ Remember that I changed the old firmware to the new firmware, how can configure DIPS SW1 & 2 to use Sidecar & S/PDIF-4, for stereo & 6-bit fully differential? Thanks Felipe
User Profile View All Posts by User View Thanks

felipe		#54 Posted : Wednesday, February 17, 2016 10:09:42 AM(UTC)
Rank: Member Groups: Member Joined: 12/6/2009(UTC) Posts: 323 Location: Catalonia new Europe state Thanks: 4 times Was thanked: 1 time(s) in 1 post(s)		Can be the change to old firmware to new firmware the issue? Greetings Felipe
User Profile View All Posts by User View Thanks

felipe		#55 Posted : Wednesday, February 17, 2016 12:09:15 PM(UTC)
Rank: Member Groups: Member Joined: 12/6/2009(UTC) Posts: 323 Location: Catalonia new Europe state Thanks: 4 times Was thanked: 1 time(s) in 1 post(s)		Just remembered I sent the BIII board to Brian who kindly soldered the 3 Tridents.
User Profile View All Posts by User View Thanks

Russ White		#56 Posted : Thursday, February 18, 2016 3:58:16 PM(UTC)
Rank: Administration Groups: Administration, Customer Joined: 10/24/2006(UTC) Posts: 3,979 Location: Nashville, TN Thanks: 25 times Was thanked: 89 time(s) in 83 post(s)		I believe (if you have current firmware) your dip switch settings are reversed (on should be off). Try reversing them back.
		WWW
User Profile View All Posts by User View Thanks

felipe		#57 Posted : Thursday, February 18, 2016 4:19:22 PM(UTC)
Rank: Member Groups: Member Joined: 12/6/2009(UTC) Posts: 323 Location: Catalonia new Europe state Thanks: 4 times Was thanked: 1 time(s) in 1 post(s)		OK I will do & let you know.
User Profile View All Posts by User View Thanks

Russ White		#58 Posted : Friday, February 19, 2016 5:38:30 AM(UTC)
Rank: Administration Groups: Administration, Customer Joined: 10/24/2006(UTC) Posts: 3,979 Location: Nashville, TN Thanks: 25 times Was thanked: 89 time(s) in 83 post(s)		And... :)
		WWW
User Profile View All Posts by User View Thanks

felipe		#59 Posted : Saturday, February 20, 2016 10:55:14 AM(UTC)
Rank: Member Groups: Member Joined: 12/6/2009(UTC) Posts: 323 Location: Catalonia new Europe state Thanks: 4 times Was thanked: 1 time(s) in 1 post(s)		:(Reversed dips falls the BII voltage to 1.068V and tridents don't light? Disconnected the BIII my regulator gives 5.360VDC with no load, regulator set to 800mA. Edited by user Saturday, February 20, 2016 2:11:56 PM(UTC)  | Reason: Not specified
User Profile View All Posts by User View Thanks

felipe		#60 Posted : Saturday, February 20, 2016 1:30:57 PM(UTC)
Rank: Member Groups: Member Joined: 12/6/2009(UTC) Posts: 323 Location: Catalonia new Europe state Thanks: 4 times Was thanked: 1 time(s) in 1 post(s)		Checked the regulator with a 12R dummy load to simulate BIII power consumption gives min. 2.557VDC across the dummy load so 438mA as expected, also the regulator is adjusted for a max. current of 800mA Edited by user Saturday, February 20, 2016 2:08:35 PM(UTC)  | Reason: Not specified
User Profile View All Posts by User View Thanks

Rss Feed  Atom Feed

Users browsing this topic

GuestUser (19)

9 Pages<12345>» Go to Page...