[elira]

Can be rectifier source of problem, if stock tubes making no any noise,

It certainly is possible. Why didn’t you shipped your rectifier along with the amp?

 

[Russianguy]

It certainly is possible. Why didn’t you shipped your rectifier along with the amp?

Because of this

Hi Roman,

We recently discovered a compatibility issue with 13EM7 tubes on WA6-SE. The good news is we have a fix and we can update your amplifier at no charge. Please send the amplifier + 13EM7 tubes to us at your earliest convenience and we'll give your unit priority for a fast turn around.

 

[elira]

Because of this

Hi Roman,

We recently discovered a compatibility issue with 13EM7 tubes on WA6-SE. The good news is we have a fix and we can update your amplifier at no charge. Please send the amplifier + 13EM7 tubes to us at your earliest convenience and we'll give your unit priority for a fast turn around.

Well, the price of the rectifier doesn't seem to be high and you would be guaranteed that it works. Is your rectifier the original one or you changed it?

 

[Russianguy]

Well, the price of the rectifier doesn't seem to be high and you would be guaranteed that it works. Is your rectifier the original one or you changed it?

My rectifier is original, and came up with amp about 2 month ago. I updated driver tubes 3 weeks ago and was planing to buy Mullard 53KU rectifier.
I hope, and I keeping my fingers crossed, this noise problem not with amp. Another way, I will need to send it back again.

 

[Geekinside]

Reading this I have the feeling that Woo Audio support tried not to exchange/repair your amp, as they do with mine with its transformer hum that I can hear 3m away from the amp.

They keep telling me it's normal for a transformer to hum, which I agree to a certain point. When it's audible 3m away and people here told me their amp is dead silent, I presume mine has a problem but they keep telling me that it's barely audible in my short video (of course, recorded with a cellphone) and as they had to put in-ears to listen to the noise on the video, it shouldn't be so audible .

I ordered a Brimar to make sure it's not the stock rectifier but for the moment I'm quite unhappy with the amp and the company. Was expecting a way better support.

Let's see when the Brimar will be there.

 

[Geekinside]

Brimar arrived this evening and.... Hum is gone, finally! So yes, there was a problem before that, and yes a 3m audible hum is not normal. Glad it's just the rectifier and not the transfo . Time to listen to music now!

 

[Zachik]

Great news
From my limited experience - the Woo guys are solid!

 

[Russianguy]

Brimar arrived this evening and.... Hum is gone, finally! So yes, there was a problem before that, and yes a 3m audible hum is not normal. Glad it's just the rectifier and not the transfo . Time to listen to music now!

So, finally your amp start to play properly. This is good news.

What about sound? Is big difference there comparable with stock rectifier?

 

[Russianguy]

I got my amp back from service.
I found pair of brand new 13EM7 tubes in a package. Customer service sent me back Raytheon tubes instead my General Electric ones, and sent me new rectifier. In package list its says Psvane 5ug4, but stock Soviet Svetlana 5Ц3С inside. Anyway, amp works fine, without noise in one channel. And now old rectifier works without noise too. Magic? No. Defective one tube from two, exactly how I describe earlier. New pair of tubes fixed problem. 130 dollars and time spent for nothing. But, amp works properly now, and I`m happy.

 

[fortunate son]

↑
What is the difference between regular WA6 and the SE version?
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You can see a comparison of Woo amps here. The main difference is that the WA6-SE is bigger and has more power, plus the benefits of having the power supply completely decoupled.
=================================================
Thanks for providing the link to the Woo amp comparison chart.

 

[gefski]

My WA6+ runs cooler with the 274B (Sophia, for example) rectifiers. Significantly cooler transformer cover, chassis, etc. Any thoughts?

 

[Cho Worsh]

Wondering if anyone has any experience or opinions on a WA6 vs the Schiit Valhalla 2? I'm looking to move up (over? I don't know) from the Valhalla, and would primarily be pairing with HD600 and HD800S's.

Woo WA6 (as well as the WA6SE) only sounds good with a limited number of headphones, I did not like those entry level Woo amps with Sennheisers at all. To do justice to the HD600 and HD800S I'd stay away from the less expensive Woo tube amps and avoid the Valhalla 2 as well. Once you hear the Sennheisers on a really good all tube amp you very likely won't be able to go back to anything less expensive. If you are on a tight budget, go for the revised L30 (not the A30 Pro) by Topping to use with your Sennheisers until you can afford a top tier all tube amp.

 

[fortunate son]

Thanks for all the input guys, really, really appreciate it. My usage between the two is probably about even, but I suspect that will change with a new amp so I'd rather cater more towards the 800S for sure. The more I look into it, the more it sounds like the WA6 isn't going to suit what I want. My WA2 lead has also led to a crazy deal on a WA22 so now I'll be up all night...

Monolith Liquid Platinum is a great choice.

 

[cebuboy]

Hello WA6 owners, where do you guys source 6FD7s, 6EW7s and other driver/power tubes for 1st gen WA6-SE at reasonable prices? The ones at the Woo site seems pretty expensive at $140...

I noticed that those tubes have different sections inside, are they used as driver and power for one channel?

 

[chimney189]

Anyone try the HEKv2 with the Woo Audio WA6 Gen 1?