vett93

Responses from vett93

TRL Dude or Joule 150 MKII for Major Pre Upgrade
Granny has put an integrated amp in place of Dude preamp and Atlas amp, with the same CD player, ICs, power cords, and speakers. It was quiet. No hum. The Atlas amp has balanced differential input gain stage and followed by driver and output stage... 
TRL Dude or Joule 150 MKII for Major Pre Upgrade
Atmasphere, my understanding is that Granny is now using a pair of passive speakers. There should not be power supply for it.... 
TRL Dude or Joule 150 MKII for Major Pre Upgrade
Granny, can you explain what you meant by "my CD player is grounded to the chassis by the power cord middle pin"? Did you use the multi-meter to measure the chassis and the power cord middle pin and then concluded that?On the CD player, can you me... 
6sn7 and 12sn7 octal preamp for under $5k
The Mystere CA21 has a similar chassis and layout like Melody 101. It looks like a Melody 101 without the regulator tubes. I have the TRL Dude preamp and a pair of Melody KT88 monoblocks. I am happy with both. 
TRL Dude or Joule 150 MKII for Major Pre Upgrade
Also, you will need to short pin 1 and 3 for the XLR connectors when you try my suggestion. I think it will work for you... 
TRL Dude or Joule 150 MKII for Major Pre Upgrade
Granny,I don't think my explanation is clear to you. My point is that the signal ground has to be grounded at one location for the entire system. Otherwise, the whole thing is floating. It seemed to me that your electrostatic speakers provided a g... 
TRL Dude or Joule 150 MKII for Major Pre Upgrade
Bill, in your earlier post today, you said that the chassis was not wired to anything, which was similar to my experience. Then you said it in your most recent post that the chassis was wired to the middle pin of the IEC. So I am a bit confused. C... 
TRL Dude or Joule 150 MKII for Major Pre Upgrade
Okay, I read through the whole threads and come up with another theory and idea to try. I simply cannot stand a fellow Dude owner not happy with his setup. ;-)I still think it is a grounding issue. If I understand it correctly, it did not hum with... 
Review: Tube Audio Design Hibachi Monoblocks TAD 125 Amplifier
I thought the output of Hibachi is 180 watts into 8 ohms? Yours is only 80 watts? 
TRL Dude or Joule 150 MKII for Major Pre Upgrade
Atamasphere, if Grannyring's Dude is like mine when I first got it, the chassis is not grounded to the middle pin of the IEC. 
Review: Tube Audio Design Hibachi Monoblocks TAD 125 Amplifier
What are the differences between Hibachi H2 and H2SE? It looks that H2SE does not have volume control and has only one input. Any other differences? 
TRL Dude or Joule 150 MKII for Major Pre Upgrade
Al, I am very sorry that I did not see the previous posts.Bill, you mentioned that you shorted the pin 1 and pin 3 of the XLR connectors and it would still hum. Did you just short 2 of the 4 XLR connectors? If that is the case, can you try to shor... 
TRL Dude or Joule 150 MKII for Major Pre Upgrade
Hi Grannyring,If the power cord is not plugged in to your Dude and you have a hum already with just the interconnect, it is not a ground-loop induced hum then. Have you tried a shileded interconnect like the one from Blue Jeans cable?What amp do y... 
TRL Dude or Joule 150 MKII for Major Pre Upgrade
Grannyring,In case it is not clear to you, I modded the amp to get rid of the ground loop. I opened the chassis and found the designer wired the signal ground, the AC ground, and the chassis all together. So I diconnected the signal ground from th... 
TRL Dude or Joule 150 MKII for Major Pre Upgrade
I don't use cheater plugs. My method fixed the hums from a ground loop. Let me first establish a baseline. Some systems have two ground connections: one through the signal ground wire connection (interconnect) and the other through the ground pin ...