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Review: Woo Audio WA6 vs. WA6SE (stock units) - Page 11

post #151 of 508
Quote:
Originally Posted by Orcin View Post
This is great news. I presume it sounds better than ever due to the time that you spent apart.
Oh yeah baby I got the GS1000s while it was back with Jack so apart from running them for about a 100 hours on another amp I got to hear them for the first time yesterday with my WA6 SE. And they sound terrific
post #152 of 508
THanks for the review....I was looking for it.
post #153 of 508
Quote:
Originally Posted by EtherealApril View Post
It looks like a Cyrus to me.

Sclamb, are those Herbies Audio Lab dampers on your tubes? They look like a pretty cool little tweak. Have you noticed any sound improvement from using them?
They are Herbies Hal-O dampers. If there is a difference it is subtle, but I figured I paid enough for the rest of the set-up I may as well go for the dampers too
post #154 of 508
Simon,

I just received the brown base Mullard GZ 30/CV2748 you recommended. WOW it's small compared to my other rectifiers. Has a nice bright heater glow when viewing from the top. Great sounding so far. I'm bidding a another one to have a spare.

Glenn
post #155 of 508

Mystery Tubes...

Quote:
Originally Posted by Orcin View Post
Back to the RCA 6DE7 discussion...




I tried these tubes against my Sylvania 6DE7's, 1970 RCA 6DE7's, and Sylvania fat bottle 6EW7's in a "power tube shootout" last night. The mystery tubes were a clear winner. They have better bass and clarity than any of the other tubes, without losing any of the soundstage that the 6EW7's demonstrate. This says a few things:

1. The state of my power tube collection is sad.
2. Sylvania tubes are weak on bass?
3. Jam is right when he says the older tubes are better.

I still prefer to have two tubes with the same cosmetics (and branding!). I'm still looking for those NOS 1950's RCA 6DE7's... they must be out there. It's nice to have something to chase.
What "mystery tubes" - do they not have any label at all? Do they have any codes stamped on them?

I don't find the Sylvania 6DE7s to have weak bass... though... the Sylvania 6EW7s might have a little less bass than the 6DE7s... but... they have superb detail, resolution, and clarity. I think a lot of a tube's sound depends on your rectifier, as well as your source, and phones in combination. "That synergy thing."

I'm finding the Sylvania 6DE7s are pretty good in combination with the right components... though... I still prefer the Tung Sol 6DE7s in combination with a Tung Sol rectifier, or the Sovtek, Sylvania/Philips, or the Princess (which seems to be the best all around rectifier). And the Sylvania, or Raytheon, 6EW7s are pretty good in combination with those rectifiers also - those rectifiers seem to help optimize the bass of the 6EW7s.
post #156 of 508
Quote:
Originally Posted by atbglenn View Post
Simon,

I just received the brown base Mullard GZ 30/CV2748 you recommended. WOW it's small compared to my other rectifiers. Has a nice bright heater glow when viewing from the top. Great sounding so far. I'm bidding a another one to have a spare.

Glenn
I have three now (well you can never have too many!). I think for the price it is a great sounding tube, but not as good to look at as the Sophia.

Simon
post #157 of 508
I've got about 12 rectifiers now. The total cost is less than the Sophia. Someday I'll bite the bullet and purchase one...
post #158 of 508
Thread Starter 
Quote:
Originally Posted by Gradofan2 View Post
What "mystery tubes" - do they not have any label at all? Do they have any codes stamped on them?

The details are in this post.


So the answer to #2 is no.

I agree, I don't think the Sylvanias have weak bass. But they don't show the strength and depth while playing NiN through the Denons like the mystery tubes do. These tubes also have more impact.

I compared all of these tubes using the Sophia Princess rectifier.
post #159 of 508
Quote:
Originally Posted by atbglenn View Post
I've got about 12 rectifiers now. The total cost is less than the Sophia. Someday I'll bite the bullet and purchase one...
Well, I bought the Sophia first with the amp. Had I not bought it and had I heard the Mullard GZ30 first and then purchased the Sophia I would have been disappointed I think as the difference is not huge given the relative prices.

There is definitely something special about the Sophia (not least the look of it atop your amp) and the difference can be heard, but when you are looking at $20 vs $140 then the GZ30 is good value for money IMHO.

Simon
post #160 of 508
Thread Starter 
I considered at first that I should NOT buy the Sophia, and instead explore all of the other rectifier options. In the end, the lure of the tube's appearance plus the thought of "leaving something on the table" was just too great for me. But I think I have probably missed out on some fun with my approach.
post #161 of 508
Speaking of rectifiers, how would the MULLARD GZ32 CV593 compare to the RCA 5V4? I really do love the look of the Sophia and I'm sure it's probably the best sounding, but it's just little too expensive for me right now. I want to redo the upstairs bathroom which will cost plenty if you know what I mean...
post #162 of 508
All I can say is the Sophia Princess has noticeably better sound stage and treble, with tighter bass than my Philips metal base GZ34 (would cost you $200-400 on eBay) and my Amperex Bugle Boy GZ34 ($90).
post #163 of 508
Thread Starter 
Quote:
Originally Posted by Orcin View Post
Back to the RCA 6DE7 discussion...

I still prefer to have two tubes with the same cosmetics (and branding!). I'm still looking for those NOS 1950's RCA 6DE7's... they must be out there. It's nice to have something to chase.

Amazingly, I found 3 RCA 6DE7's on eBay with the two plates & shield construction from the same year and lot number as my fourth. I got them Wednesday and they were exactly as advertised and look new. So I now have two pair of these made in 1960. They all sound the same... which is to say great!

I think I may have lucked into the right tubes for the power slots... at least until I find those early 50's gems!
post #164 of 508
Thanks for the great comparison review. I ended up getting the W6.
post #165 of 508
I think I have found a stock of 1950s RCA 6DE7s. However, the seller wants to make sure he is not misleading me and so has asked what was the letter date code that was used by RCA for the 1950s tubes. He can then check that he has the right ones in stock.

Does anyone know this?

Thanks.

Simon
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