I have tried that, but thanks for the suggestion.

Funny, I had the same exact problem. Right driver tube seemed to be the issue, but the only thing that worked was using the unit at a buddy's place being that I live in an old building without ground wiring. Please let me know if you find a solution. I did find that the stock driver tubes and...

Which rectifier tube are you using? I’ve tried the USAF 596 and stock. I had noise with both rectifiers.

I had the exact same issue with my WA22. I live in a older building without 3-prong sockets so if you're in the similar situation, grounding might be the issue. I was able to try the unit at a buddy's place with 3-prong sockets and the hum went away. There is a chance that I could be dealing...

I agree wholeheartedly but with bias as I own the WA22 ;)

Oakland. I'd be happy bring a few items for others to test: WA22, Chord Qutest, WA11, HD800S, Diana V2, and LCD3. Also open to a smaller setting or something more impromptu.

@cj3209, how does the WA11 compare against the Broadway? I noticed that you have both amps in your signature? I just picked up a WA11 and was curious.

Thanks for the follow up!

How was background noise with the i4s? I have the i3s and would be interested to evaluate how the Broadway would work with IEMs.

I second this. The mojo, while great for IEMs, did not adequately power my Diana V2. The WA11 is another story altogether. If anyone is looking to sell a Broadway (not the S version) I’d be very interested. Please PM me.

A spectacular purchase!!! How does it sound? I only have the stock rectifier and USAF 596 as a reference but would be interested in your thoughts on how the Takatsuki sounds.

On a WA22, I notice the same thing. The TS 5998 tubes also result in the WA22 running much cooler.