Woo Audio Amp Owner Unite

[texx2818]

Does Woo make a cage for the WA22? Burned the living crap out of my forearm on a tube.

 

[mikemalter]

Does Woo make a cage for the WA22? Burned the living crap out of my forearm on a tube.

Sorry to hear. Which tube was it?

 

[Promee]

Anybody here have thoughts on upgrading output caps on WA2? I love my Mundorf coupling caps (though they made more difference in other amps, less noticeable in WA2), and I was thinking of trying their Tubecaps for the output… any input would be welcome!

Does Woo make a cage for the WA22? Burned the living crap out of my forearm on a tube.

And I have no idea about a cage for the amp, but sorry to hear about the burn! I guess in a way it shows that you’re hard core and willing to suffer for amazing sound! But still, bummer that it happened…

 

[mikemalter]

Anybody here have thoughts on upgrading output caps on WA2? I love my Mundorf coupling caps (though they made more difference in other amps, less noticeable in WA2), and I was thinking of trying their Tubecaps for the output… any input would be welcome!

Not sure about the WA2. Here is a picture of work that 2359glenn | studio did for me years ago. I really liked the results.

 

[Promee]

Not sure about the WA2. Here is a picture of work that 2359glenn | studio did for me years ago. I really liked the results.

Nice! Over on the orgy of capacitors thread someone also recommended those VCaps. I have Mundorfs in that position on my WA2 and WA22, but there is not really an analogous capacitor to the one I’m thinking of replacing - the WA22’s output is transformer coupled, but the WA2 is capacitor coupled, and it’s that capacitor that couples the output that I’m wondering if I would benefit from replacing. Still, very spiffy WA22 there, I’m sure you’re very happy with it!!

 

[mikemalter]

Nice! Over on the orgy of capacitors thread someone also recommended those VCaps. I have Mundorfs in that position on my WA2 and WA22, but there is not really an analogous capacitor to the one I’m thinking of replacing - the WA22’s output is transformer coupled, but the WA2 is capacitor coupled, and it’s that capacitor that couples the output that I’m wondering if I would benefit from replacing. Still, very spiffy WA22 there, I’m sure you’re very happy with it!!

Do you do your own work, or is there a shop you use?

 

[Promee]

Do you do your own work, or is there a shop you use?

I have done my own work so far… I haven’t attempted anything too bold, just some soldering in areas that are fairly easy to get to. I think if it were more of a full overhaul or smaller pieces in tighter spots I would be inclined to take it to a shop. I got cards from a couple around Denver at a vintage electronics show here last year, but haven’t had occasion to use them yet…

 

[skhan007]

You could always get your upgraded capacitors and alligator clip them into the circuit. That would only require you to remove one leg from the stock capacitors. You could then do an A/B test to see if you can hear any difference. Just a random thought, as I’ve done this in guitar amplifiers

 

[Promee]

You could always get your upgraded capacitors and alligator clip them into the circuit. That would only require you to remove one leg from the stock capacitors. You could then do an A/B test to see if you can hear any difference. Just a random thought, as I’ve done this in guitar amplifiers

That’s a really good idea! I have never heard of that method before, but it totally makes sense, especially if we can get something like a gold plated copper clip

 

[David222]

I just swapped Dueland Copper Foil into my WA3. Dueland are fantastic - detailed, yet full body, with excellent timbre. Very organic.

 

[lydhenry]

Recently the knob on my woo audio amp switch inexplicably fell off (though it doesn't affect use). But would like to ask if anyone else has had the same experience and how to fix it?

 

[skhan007]

The off/hi/lo knob? It can be tightened with an Allen key.

 

[lydhenry]

The off/hi/lo knob? It can be tightened with an Allen key.

I see. Thanks for the advice!

 

[SunRa Fan]

Are there any WA2 owners who can comment on how it does with the ZMF Caldera? I'll be acquiring an Atrium this year which I'm aware does well on WA2's, however currently own a pair of the Caldera and I'm hoping they'll also have decent synergy with a WA2.

 

[jonathan c]

Are there any WA2 owners who can comment on how it does with the ZMF Caldera? I'll be acquiring an Atrium this year which I'm aware does well on WA2's, however currently own a pair of the Caldera and I'm hoping they'll also have decent synergy with a WA2.

Caldera (Open, Closed) has a nominal impedance of 60 ohms; Atrium, 300 ohms. As an OTL tube headphone amp with an estimated output impedance of 100 ohms, WA2 is not likely to be a good match for Caldera.