jea48
Responses from jea48
| Isolating Digital Noise, need help. jea, since you commented on the high gain of the CDP (2.7V), I checked it by playing thru a different preamp input and the gain is too high. Ralph put in the -6dB pad for me as a mod due to the CDP’s high gain spec. And it sounds very good. Al, (a... | |
| Isolating Digital Noise, need help. Jim (Jea48), you provided an excerpt and a link to Mr. Hansen's statement in the last post on this page. However, I would not interpret his statement to mean that signal ground should be connected **directly** to the chassis, as that can be condu... | |
| Isolating Digital Noise, need help. - continuity of RCA outer sleeve to metal chassis... reads OL- continuity of each RCA center pin and pin 2 of XLR... OL- continuity of RCA outer sleeve and pin 1 of XLR... 000.0- You said in an earlier post you checked for continuity from the grou... | |
| Isolating Digital Noise, need help. Al,I guess I must have been having one of my brain fart moments.Try this ARC CD3 MK2 schematic wiring diagram.http://www.audioresearch.com/ContentsFiles/CD3%20II%20sch%20%20PL.pdfJim | |
| Isolating Digital Noise, need help. lowrider57 said:@jond, the output of the ARC is high; 2.7V unbalanced. But the Atma-Sphere has a switch for -6dB attenuation on the input.Al,What are the chances the ARC CDP is still over driving the L & R input stage of the preamp? Also look ... | |
| Isolating Digital Noise, need help. ARC CD2 wiring schematic wiring diagram.http://www.audioresearch.com/ContentsFiles/CD2%20Sch%20pl%20tips.pdf>>XLR shorting jumper.http://www.cardas.com/images/cgsp_pic1_transparent.jpg>>Decoupling the power supply of digital from analo... | |
| Isolating Digital Noise, need help. Yes, OL (or zero L). Maybe a code for something?If you do not measure 000.0 or in otherwards "short", or continuity, then for some reason the metal chassis of the amp is floating above the safety equipment ground. That does not meet any equipment ... | |
| Isolating Digital Noise, need help. Lowrider57 said:I did some tests on the amp. With my multi meter, measuring from the male ground pin on the Sunfire amp to the metal chassis of the amp, I could not get a reading of resistance. The meter indicated “L.”So "OL" equals open? Same as ... | |
| Isolating Digital Noise, need help. Lowrider57 said:I did some tests on the amp. With my multi meter, measuring from the male ground pin on the Sunfire amp to the metal chassis of the amp, I could not get a reading of resistance. The meter indicated “L.”"L" ? What does the meter ind... | |
| Isolating Digital Noise, need help. jea, I hope that's a rhetorical question, because I'm going by what I read in the Whitlock paper.Ralph thinks my Sunfire amp may have an atypical grounding design.No, I did not mean it as rhetorical question at all. (I assume the ICs are not long.... | |
| Isolating Digital Noise, need help. I understand the principle of ground-loop in this case because they are connected by an unbalanced line.Please explain it to me, because I don't understand it. | |
| Isolating Digital Noise, need help. so far there is no high-pitched noise when using the stock PC on the ARC. Perhaps the Audience PC is not a good design for a digital device?The IEC connector is probably wired wrong. The Hot and neutral conductors are probably switched, interchang... | |
| Isolating Digital Noise, need help. I was wondering if a power strip with isolated receptacles, such as star-grounding, would be an alternative to a separate AC line.As a test, I now have the CDP connected to a different outlet in my house and the noise thru my system is eliminated.... | |
| Static noise from right speaker icorem,Thanks for the reply. That makes more sense than what I must have been thinking yesterday when I posted my response. LOL, I don’t know what I was thinking yesterday.There is one other thing you might check with the right amp. I assume the a... | |
| Static noise from right speaker it is probably the right amp as I disconnected the ICs totally and swapped speaker cables and noise shifted to the left amp.Doesn't sound the right amp to me. Sounds like maybe a bad speaker cable termination. The speaker cable that started out co... |