Finally traded my ET3 for ET3SE

[ronenash]

What worked for me is organizing all my cabling. I am using two wireworld matrix power distribution boxes. One for analog and one for digital. I disconnected all cables in my system and started routing them from scratch.
Started with the analog power cables. Ran the cables from my mono blocks and preamp tied together to to the distribution box. Then I routed the digital digital power cables to to the other distribution box. Again nice and tidy with the power cables tied together.
Only then I routed the interconnects trying to keep them as far away as possible from the power cables.
All this took me a couple of hours but once done there was no hum human the system sounded better altogether.

All my cabling is ww noise cancelling series 5.2.
Hope this works out for you as well.

[Coppy]

Originally Posted by ronenash

What worked for me is organizing all my cabling. I am using two wireworld matrix power distribution boxes. One for analog and one for digital. I disconnected all cables in my system and started routing them from scratch.
Started with the analog power cables. Ran the cables from my mono blocks and preamp tied together to to the distribution box. Then I routed the digital digital power cables to to the other distribution box. Again nice and tidy with the power cables tied together.
Only then I routed the interconnects trying to keep them as far away as possible from the power cables.
All this took me a couple of hours but once done there was no hum human the system sounded better altogether.

All my cabling is ww noise cancelling series 5.2.
Hope this works out for you as well.

Ron,

Good suggestion... I'll try the cable routing as an early solution alternative.

Bob

[ronenash]

Let me know how it works our for you.
Good luck.

[Coppy]

Originally Posted by ronenash

Let me know how it works our for you.
Good luck.

Ron,

After thinking the ground loop issue through, I decided to trouble shoot it from the amps back. With the amps powered up, the power cord grounds NOT lifted and the inputs not connected, all is quiet. When the ICs from the preamp are connected... hum. So I decided to unplug the power to each component on the preamps inputs and listen for the hum; one by one. When I unplugged the DynaLab tuner, the hum disappeared. So now it will be plugged into the power only when used, which isn't much any more. A small price to pay for silence. Well that's good, but what I still need to do is take your suggestion and do a better job routing the cables. That will be the next project. Thanks again... much safer now.

Bob

[ronenash]

Bob,

That's great! You can lift the ground on your tuner. It does not have high voltages inside and you will not risk shock.
Routing the cables better is always a good idea to get better sound.

Glad to hear it worked out for you.

[Coppy]

Originally Posted by ronenash

Bob,

That's great! You can lift the ground on your tuner. It does not have high voltages inside and you will not risk shock.
Routing the cables better is always a good idea to get better sound.

Glad to hear it worked out for you.

Ron,

Lift the ground on the tuner... great suggestion, thanks. It does have a couple of buffer tubes in the output circuit, but I believe they are pretty low plate voltage items so should not be a safety issue.

Thanks again,
Bob

[skroudo]

Sold my ET3 on Audiogon today
Hoping to get my new ET3SE Wednesday

[joeinid]

Originally Posted by skroudo

Sold my ET3 on Audiogon today
Hoping to get my new ET3SE Wednesday

Congratulations! All the CJ gear sounds great. Enjoy and pleas post a photo.

[skroudo]

Originally Posted by joeinid

Congratulations! All the CJ gear sounds great. Enjoy and pleas post a photo.

Thank you buddy.
Congrats to you for a beautiful GAT, you can't go wrong with CJ

[ronenash]

Originally Posted by skroudo

Sold my ET3 on Audiogon today
Hoping to get my new ET3SE Wednesday

Congrats Josh,
This is an upgrade well worth your investment. The only down side is the break in time. I connected my preamp with a constant radio source on for three weeks which took care of most of the break in. just make sure its connected to your power amp when you do this. The power amp can stay off.