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Apr 16, 2021 at 4:09 PM Post #41,266 of 41,338

Odin412

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One of the things that piques my curiosity with the WA2 is the use of rectifier tubes (2). How does this affect sound quality? Is the WA2 "two WA3s on one chassis" or something more?

I happen to also have a WA6, which is a transformer-coupled amp that uses a rectifier tube, and I can confirm that the rectifier tube does indeed make a difference to the sound. I don't really understand why this happens since a rectifier should basically convert AC current to DC, but different rectifier tubes do sound different, so there is something going on that affects the sound.
 
Apr 16, 2021 at 4:46 PM Post #41,267 of 41,338

JLoud

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I second that rectifiers change the sound. Not as dramatically as the power tubes, but you can hear differences.
 
Apr 16, 2021 at 4:48 PM Post #41,268 of 41,338

JLoud

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As side note, does anyone know how to leave feedback in the new Classifieds? Usually just go to members feedback and click on Leave Feedback. But I no longer see it.
 
Apr 16, 2021 at 4:51 PM Post #41,269 of 41,338

mammal

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As side note, does anyone know how to leave feedback in the new Classifieds?
Go to your listing and select "Add Feedback" under More Options.
 

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Apr 16, 2021 at 4:55 PM Post #41,270 of 41,338

JLoud

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When I go to the More tab all I see is Report. Not sure what is going on. Unless the seller has to change status to sold or closed?
 
Apr 16, 2021 at 4:56 PM Post #41,271 of 41,338

whirlwind

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When I go to the More tab all I see is Report. Not sure what is going on. Unless the seller has to change status to sold or closed?
I copied this from the feedback and bug reports forum
with the new Head-Fi Classifieds system, feedback is accessible via the drop down menu located at the top of the listing. Simply click the "..." button and choose leave feedback on the closed listing to leave feedback and it will be added to the other party's total. Here's a link to our Classifieds FAQ for that specific question: https://www.head-fi.org/articles/head-fi-classifieds-faq-and-walkthrough.19757/#q8
 
Apr 16, 2021 at 6:29 PM Post #41,273 of 41,338

JLoud

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It looks like that is the case. Thanks for the replies.
 
Apr 16, 2021 at 7:25 PM Post #41,274 of 41,338

jonathan c

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I happen to also have a WA6, which is a transformer-coupled amp that uses a rectifier tube, and I can confirm that the rectifier tube does indeed make a difference to the sound. I don't really understand why this happens since a rectifier should basically convert AC current to DC, but different rectifier tubes do sound different, so there is something going on that affects the sound.
I have the WA6 also and enjoy it much! What I am curious about is sound of WA3 (with ‘6080’ + ‘6922’) vs WA2 (with ‘6080’ + ‘6922’ + ‘C6A4’).
 
Apr 18, 2021 at 12:22 AM Post #41,275 of 41,338

Stereolab42

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20210417_211031.jpg


Got some new PSVANE 300 ACMEs (easily available on eBay) . At the time I bought the similarly-priced PSVANE 300 PLUS in 2019, there were very few opinions on this and PSVANE was mostly derided as a second-rate brand. However, the tubes sounded fantastic and transparent and have been rock-solid reliable, and since then I've seen a lot of positive reviews of the top PSVANE tubes pop up. I still have the PLUSes but wanted to see what the ACMEs could deliver, since they are built very differently -- a globe design instead of the classic Western Electric coke bottle. Well, I'm happy to say they also sound great. Can't really tell the difference, but the PSVANE house sound to me is solid, dynamic and uncolored. Still hope to get my hands on Takatsuki 300B eventually but at the typical asking price it's a hell no.
 
Apr 26, 2021 at 8:55 PM Post #41,276 of 41,338

Krutsch

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I am a WA3 owner too and I've been curious about the WA2 as well. Hopefully others can share their experiences with both products.

I've had my WA3 for a long time (8 years?), collected a Schitt-ton of tubes for it, decided to upgrade to a WA2 this summer and re-use my tube collection (it's in my profile).

I am a Sennheiser fanboy, so take my recommendation with a grain of salt: With the HD-650, the WA2 really sounds incredible. Honestly, it's all I listen with anymore. I took my WA3 to my office w/ an HD-660S fed by a Sony Walkman WM1. At home, I listen to cassette tapes and vinyl :L3000:

Do it... buy one... you survived the pandemic, you deserve it.
 

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Apr 26, 2021 at 10:16 PM Post #41,277 of 41,338

Odin412

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I've had my WA3 for a long time (8 years?), collected a Schitt-ton of tubes for it, decided to upgrade to a WA2 this summer and re-use my tube collection (it's in my profile).

I am a Sennheiser fanboy, so take my recommendation with a grain of salt: With the HD-650, the WA2 really sounds incredible. Honestly, it's all I listen with anymore. I took my WA3 to my office w/ an HD-660S fed by a Sony Walkman WM1. At home, I listen to cassette tapes and vinyl :L3000:

Do it... buy one... you survived the pandemic, you deserve it.
Thanks! Nice cassette deck - Nakamichi?
 
Apr 27, 2021 at 3:12 AM Post #41,278 of 41,338

Lucky87

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Picked up KR Audio 2A3 for my Elite. I'm waiting for my order of 300b 2.5 mesh. The KR sound really good but small compared to an EML tube. Here's pic of the Elite.
Are you using the KR HP 274B?
I like the acme more then the KR tubes. Lucky me I'm attracted to cheaper tubes. All I can realize KR needs lots of burn in so hopefully they will get good. Right now they sound boring over all. I'm going to switch back and see if they improve.
I have been listening to the KR HP combo 4 x 2A3 1 x 274B with the electro harmonix 6c45pi gold-pin sounds very tight and controlled. But I took out and put in my TAK 274B and everything a little bigger but not as controlled and boring. But with the stock tubes with the Susvara’s seemed to have a lot of power and authority but with the new KR HP combo not so much I need to turn them up to 12-1 o’clock but from stock tubes position @ 11-12 o’clock very loud. I am hoping the KR tubes get more power and authority as of now my Utopia’s never sounded so good. When you think Utopia small in your face intimate sound well with the KR combo it’s not in your face anymore with a HUGE SOUNDSTAGE and CLEAN DETAILED BASS SLAM.
 
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Apr 28, 2021 at 7:23 AM Post #41,280 of 41,338

Bonddam

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Are you using the KR HP 274B?

I have been listening to the KR HP combo 4 x 2A3 1 x 274B with the electro harmonix 6c45pi gold-pin sounds very tight and controlled. But I took out and put in my TAK 274B and everything a little bigger but not as controlled and boring. But with the stock tubes with the Susvara’s seemed to have a lot of power and authority but with the new KR HP combo not so much I need to turn them up to 12-1 o’clock but from stock tubes position @ 11-12 o’clock very loud. I am hoping the KR tubes get more power and authority as of now my Utopia’s never sounded so good. When you think Utopia small in your face intimate sound well with the KR combo it’s not in your face anymore with a HUGE SOUNDSTAGE and CLEAN DETAILED BASS SLAM.
So I switched to my ACME 2A3 and it became exciting. So I'll take the less expensive route for my music tastes. Bass did not decrease. I guess from what you said you need the whole KR HP line.

So if anyone would like to upgrade to KR 2A3 HP I put mine up for sale in the classifieds.
 

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