Please advise: Upgrade Theta Gen V or PS Audio PW


I have a Theta Gen V version A balanced with the known transformers hum issue. I am debating about send it to be modded to eliminate the issue and improved farther the sound or sell it and buy a new PS Audio Perfect Wave since I don’t want to spend more then $2,500 in a new DAC.

The Theta is in mint cosmetically condition and sounds as intended it is just the little electromechanical hum created by the transformers that bothers me. I have been told that this is a know issue with Theta equipment.

So what do you recomment?
musicman159

Showing 2 responses by musicman159

No I have not. But I have talked to two different people that work on DAC reapring and modifying and both have said that is a known issue that can be reduce (As I did) but not eliminated.

One of them mentioned the humbuster as a potential solution but was not sure it it would work. He balmes the issue to the kind of transpormers used and the proximity of each other in the design letting them magnetically coupled.
Thanks Jfeldt.
That is the same with mine. I did a lot of chassis and cover damping and I also decoupled the power supply boeard from the chassis mounting posts with some rubber isolators. All that minimized the noise and I can only hear it if I get about 2 to 3 feet from it.