Ground loop issue and imaging...
nooshinjohn
Posts: 25,447
I reintroduced the Pass labs to the mix tonight after I set the Xono to ten settings desired by the C/A Titanium. I have triple checked the settings on the Xono, and they are correct for low output MC. The previous settings had no hum issues. It was set to MM, and the Dynavector was happy there. All connections have been checked and checked again. I use balanced connectors from the Xono to the X1, and a tol shelf Analysis phono cable...
More perplaxing is the image has shifted to the right, and I have to compensate by adjusting the balance to the left a couple points. This has never been an issue before.
I have also redid the connections on the SDA's so the phasing is once again correct. The above is only when listening to the turntable. All other components operate flawlessly with no problems at all.
Any ideas guys?
More perplaxing is the image has shifted to the right, and I have to compensate by adjusting the balance to the left a couple points. This has never been an issue before.
I have also redid the connections on the SDA's so the phasing is once again correct. The above is only when listening to the turntable. All other components operate flawlessly with no problems at all.
Any ideas guys?
The Gear... Carver "Statement" Mono-blocks, Mcintosh C2300 Arcam AVR20, Oppo UDP-203 4K Blu-ray player, Sony XBR70x850B 4k, Polk Audio Legend L800 with height modules, L400 Center Channel Polk audio AB800 "in-wall" surrounds. Marantz MM7025 stereo amp. Simaudio Moon 680d DSD
“When once a Republic is corrupted, there is no possibility of remedying any of the growing evils but by removing the corruption and restoring its lost principles; every other correction is either useless or a new evil.”— Thomas Jefferson
“When once a Republic is corrupted, there is no possibility of remedying any of the growing evils but by removing the corruption and restoring its lost principles; every other correction is either useless or a new evil.”— Thomas Jefferson
Comments
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Crazy thought....the last setup was off and the new one is revealing the actual recording?
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With the balance set, the sound is stunning....The Gear... Carver "Statement" Mono-blocks, Mcintosh C2300 Arcam AVR20, Oppo UDP-203 4K Blu-ray player, Sony XBR70x850B 4k, Polk Audio Legend L800 with height modules, L400 Center Channel Polk audio AB800 "in-wall" surrounds. Marantz MM7025 stereo amp. Simaudio Moon 680d DSD
“When once a Republic is corrupted, there is no possibility of remedying any of the growing evils but by removing the corruption and restoring its lost principles; every other correction is either useless or a new evil.”— Thomas Jefferson -
Ground lift? For the hum.
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I am thinking the troubles are inside the Xono. There are what look like adjustment pots that could be off, and the ground loop did not start until I flipped the switch to MC from MM... I think I will be sending it out for service whe I get the motor for the table tweaked.
My god this sounds superb... Charlie Rich is alive and in the room.The Gear... Carver "Statement" Mono-blocks, Mcintosh C2300 Arcam AVR20, Oppo UDP-203 4K Blu-ray player, Sony XBR70x850B 4k, Polk Audio Legend L800 with height modules, L400 Center Channel Polk audio AB800 "in-wall" surrounds. Marantz MM7025 stereo amp. Simaudio Moon 680d DSD
“When once a Republic is corrupted, there is no possibility of remedying any of the growing evils but by removing the corruption and restoring its lost principles; every other correction is either useless or a new evil.”— Thomas Jefferson -
Sounds like you have reached your "almost" pinnacle in the journey. It's been a treat to see you flourish from a pair of 1C (IIRC) to building your own tube space heaters to this.
A tip o the hat, John.
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I had monitor 50's, a Yamaha RXv2090, no turntable, and no clue. One thing for sure is I was a putz of epic proportions. The other thing I know is I would have a much bigger bank account if I had been banned way back when...The Gear... Carver "Statement" Mono-blocks, Mcintosh C2300 Arcam AVR20, Oppo UDP-203 4K Blu-ray player, Sony XBR70x850B 4k, Polk Audio Legend L800 with height modules, L400 Center Channel Polk audio AB800 "in-wall" surrounds. Marantz MM7025 stereo amp. Simaudio Moon 680d DSD
“When once a Republic is corrupted, there is no possibility of remedying any of the growing evils but by removing the corruption and restoring its lost principles; every other correction is either useless or a new evil.”— Thomas Jefferson -
Yep. The 50's... To that which you have now. Carry on.
And I got put in time out a couple of times myself.
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John, hate to ask such a silly question given the cost of your new toy, but are you sure the cartridge is shielded ? I'm more inclined to think the hum is coming from the cartridge or how it's grounded than the phono itself.
Of course you can always go old school and run a wire from the phono to another piece to see if that helps.HT SYSTEM-
Sony 850c 4k
Pioneer elite vhx 21
Sony 4k BRP
SVS SB-2000
Polk Sig. 20's
Polk FX500 surrounds
Cables-
Acoustic zen Satori speaker cables
Acoustic zen Matrix 2 IC's
Wireworld eclipse 7 ic's
Audio metallurgy ga-o digital cable
Kitchen
Sonos zp90
Grant Fidelity tube dac
B&k 1420
lsi 9's -
The balance issues may be related to cartridge alignment, or the dip switches in the phono pre. The ground issues may prove more problematic.The Gear... Carver "Statement" Mono-blocks, Mcintosh C2300 Arcam AVR20, Oppo UDP-203 4K Blu-ray player, Sony XBR70x850B 4k, Polk Audio Legend L800 with height modules, L400 Center Channel Polk audio AB800 "in-wall" surrounds. Marantz MM7025 stereo amp. Simaudio Moon 680d DSD
“When once a Republic is corrupted, there is no possibility of remedying any of the growing evils but by removing the corruption and restoring its lost principles; every other correction is either useless or a new evil.”— Thomas Jefferson -
Probably shoot Pass Labs an email since it's their phono pre."Appreciation of audio is a completely subjective human experience. Measurements can provide a measure of insight, but are no substitute for human judgment. Why are we looking to reduce a subjective experience to objective criteria anyway? The subtleties of music and audio reproduction are for those who appreciate it. Differentiation by numbers is for those who do not".--Nelson Pass Pass Labs XA25 | EE Avant Pre | EE Mini Max Supreme DAC | MIT Shotgun S1 | Pangea AC14SE MKII | Legend L600 | BlueSound Node 3 - Tubes add soul!
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Probably shoot Pass Labs an email since it's their phono pre.
I talked to them this morning. I an going to do some troubleshooting, but they also suggested I look to the cartridge setup. I am going to pop the top off the Pass and reset the dip switches, and deoxit them a bit too.The Gear... Carver "Statement" Mono-blocks, Mcintosh C2300 Arcam AVR20, Oppo UDP-203 4K Blu-ray player, Sony XBR70x850B 4k, Polk Audio Legend L800 with height modules, L400 Center Channel Polk audio AB800 "in-wall" surrounds. Marantz MM7025 stereo amp. Simaudio Moon 680d DSD
“When once a Republic is corrupted, there is no possibility of remedying any of the growing evils but by removing the corruption and restoring its lost principles; every other correction is either useless or a new evil.”— Thomas Jefferson -
Could the image balance issue be related to antiskate?afterburnt wrote: »They didn't speak a word of English, they were from South Carolina.
Village Idiot of Club Polk -
John, not familiar with your TT but mine has 2 ground wires. 1 from the center of the spindle and 1 with the rca's. I had both the grounds hooked to my pre and had also a hum. So I took the one from the center of the spindle and hooked it to my avr and the hum went away.
The hum started when I went from a MM cartridge to a MC.Anaheim Hills CA,
HT 5.1: Anthem MRX 720 / BDP-Denon DBT1713UD / Polkaudio LSiM703 / W4S mAmp's / Polkaudio LSiM706c / Polkaudio LSiM702F/X's / SVS PC12-NSD / Panasonic TC P55VT30
2 Channel: Rogue RP-5 / WireWorld Electra power cord / Marantz TT-15S1/ Ortofon - Quintet Black MC / Marantz NA8005 DAC / W4S mAmp's / Synology DS 216+ll-4TB / Polkaudio LSiM703 -
I went from high output MC to low output. I am going to run another ground from my phono pre to the power conditioner and see what that does.The Gear... Carver "Statement" Mono-blocks, Mcintosh C2300 Arcam AVR20, Oppo UDP-203 4K Blu-ray player, Sony XBR70x850B 4k, Polk Audio Legend L800 with height modules, L400 Center Channel Polk audio AB800 "in-wall" surrounds. Marantz MM7025 stereo amp. Simaudio Moon 680d DSD
“When once a Republic is corrupted, there is no possibility of remedying any of the growing evils but by removing the corruption and restoring its lost principles; every other correction is either useless or a new evil.”— Thomas Jefferson -
Yeah, mine is a low output too, maybe that has something to do with it. Hope that works for ya!Anaheim Hills CA,
HT 5.1: Anthem MRX 720 / BDP-Denon DBT1713UD / Polkaudio LSiM703 / W4S mAmp's / Polkaudio LSiM706c / Polkaudio LSiM702F/X's / SVS PC12-NSD / Panasonic TC P55VT30
2 Channel: Rogue RP-5 / WireWorld Electra power cord / Marantz TT-15S1/ Ortofon - Quintet Black MC / Marantz NA8005 DAC / W4S mAmp's / Synology DS 216+ll-4TB / Polkaudio LSiM703 -
Are the connections going to the right place where they plug into the cartridge?Vinyl, the final frontier...
Avantgarde horns, 300b tubes, thats the kinda crap I want...
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Ok... Did what Pass recommended and popped the top again. Made a tweak and the imaging is resolved, I also put things back on the MM setting and left everything else the same, the 60htz hum also vanished. Back to the MC and it returns. This eliminates the cartridge, cables, and everything else but the MC side of the preamp. Looks like a trip to Poppa's workshop is in order.
*** Edit.... I found the hum is still there, just nowhere as close to noticeable on the MM side. I guess that tends to put some focus on the cartridge, given that is the only variable the has been changed.Post edited by nooshinjohn onThe Gear... Carver "Statement" Mono-blocks, Mcintosh C2300 Arcam AVR20, Oppo UDP-203 4K Blu-ray player, Sony XBR70x850B 4k, Polk Audio Legend L800 with height modules, L400 Center Channel Polk audio AB800 "in-wall" surrounds. Marantz MM7025 stereo amp. Simaudio Moon 680d DSD
“When once a Republic is corrupted, there is no possibility of remedying any of the growing evils but by removing the corruption and restoring its lost principles; every other correction is either useless or a new evil.”— Thomas Jefferson -
John I did what Rich @SCompRacer did by using a SUT (step up transformer) with my high MC cartridge and using my phono amp set to MM and it works great! works even better for Low MC cartridges!
Got my from Parks audio and Shannon ask about my set up and then gave me the correct loading's.2 ch- Polk CRS+ * Vincent SA-31MK Preamp * Vincent Sp-331 Amp * Marantz SA8005 SACD * Project Xperience Classic TT * Sumiko Blue Point #2 MC cartridge
HT - Polk 703's * NAD T-758 * Adcom 5503 * Oppo 103 * Samsung 60" series 8 LCD -
I will be looking into this. Pass suggested this as well.The Gear... Carver "Statement" Mono-blocks, Mcintosh C2300 Arcam AVR20, Oppo UDP-203 4K Blu-ray player, Sony XBR70x850B 4k, Polk Audio Legend L800 with height modules, L400 Center Channel Polk audio AB800 "in-wall" surrounds. Marantz MM7025 stereo amp. Simaudio Moon 680d DSD
“When once a Republic is corrupted, there is no possibility of remedying any of the growing evils but by removing the corruption and restoring its lost principles; every other correction is either useless or a new evil.”— Thomas Jefferson -
Same here. Love the Budgie SUT. Does wonders for my AT and DL-103r carts. Has a ground lift that might be useful in your case?John I did what Rich @SCompRacer did by using a SUT (step up transformer) with my high MC cartridge and using my phono amp set to MM and it works great! works even better for Low MC cartridges!
Got my from Parks audio and Shannon ask about my set up and then gave me the correct loading's.b]Beach Audio[/b]: Rega RP6 (mods) - AT33PTG/II - Parks Budgie SUT - PSAudio NPC * Eversolo DMP-A6 * Topping D90iii * Joule-Electra LA-100 mkIII * Pass Aleph 30 * MIT S3 * Polk SRS 2.3tl (mods) * PSAudio PPP3
Beach Study: Pro-Ject Stream Box S2 Ultra & Pre Box S2 * Pass ACA * DH Labs SS Q10 * Brines Folded ML-TQWT RS 40-1354 * PSA Dectet
Beach Master: WiiM Pro * Dayens Menuetto * Zu Libtec * Dynaudio Audience 50
Beach Den: Bluesound Powernode 2i * DH Labs SS Q10 * Zu Omen DWII * Richard Gray RGPC
Town Study: WiiM Pro * Chord Qute (Pardo) * Elekit TU-8600 * MIT S3 * Revel M22 * Beyer DT-990 * Shunyata Hydra 2
Town Den: Music Hall mm5.1se - Denon DL-103r - Jolida JD9ii (mods) * WiiM Pro * Cary xCiter * Rogue 99 Magnum * Schiit Aegir * MIT S3 * Polk SRS 1.2tl (mods) * Dectet * Bottlehead Crack - Senn 600
Town Porch: WiiM Pro Plus * Sunfire Sig II * Canare 4S11 * Magnepan 1.6 * Dectet -
Life used to be so simple
2-channel: Modwright KWI-200 Integrated, Dynaudio C1-II Signatures
Desktop rig: LSi7, Polk 110sub, Dayens Ampino amp, W4S DAC/pre, Sonos, JRiver
Gear on standby: Melody 101 tube pre, Unison Research Simply Italy Integrated
Gone to new homes: (Matt Polk's)Threshold Stasis SA12e monoblocks, Pass XA30.5 amp, Usher MD2 speakers, Dynaudio C4 platinum speakers, Modwright LS100 (voltz), Simaudio 780D DAC
erat interfectorem cesar et **** dictatorem dicere a -
Hey Ron... as our good friend Lightman would say.... UP YERS!!!
The Gear... Carver "Statement" Mono-blocks, Mcintosh C2300 Arcam AVR20, Oppo UDP-203 4K Blu-ray player, Sony XBR70x850B 4k, Polk Audio Legend L800 with height modules, L400 Center Channel Polk audio AB800 "in-wall" surrounds. Marantz MM7025 stereo amp. Simaudio Moon 680d DSD
“When once a Republic is corrupted, there is no possibility of remedying any of the growing evils but by removing the corruption and restoring its lost principles; every other correction is either useless or a new evil.”— Thomas Jefferson -
As I'm sure that will offend someone, I reported it. Political Correctness'.........defined
"A doctrine fostered by a delusional, illogical minority and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a t-u-r-d by the clean end."
President of Club Polk -
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The Gear... Carver "Statement" Mono-blocks, Mcintosh C2300 Arcam AVR20, Oppo UDP-203 4K Blu-ray player, Sony XBR70x850B 4k, Polk Audio Legend L800 with height modules, L400 Center Channel Polk audio AB800 "in-wall" surrounds. Marantz MM7025 stereo amp. Simaudio Moon 680d DSD
“When once a Republic is corrupted, there is no possibility of remedying any of the growing evils but by removing the corruption and restoring its lost principles; every other correction is either useless or a new evil.”— Thomas Jefferson -
That's, Sir Snitch to you.
Political Correctness'.........defined
"A doctrine fostered by a delusional, illogical minority and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a t-u-r-d by the clean end."
President of Club Polk -
Aye cap'n!
