Welcome, Guest. Please Login or Register
Decware Audio Forums
07/18/18 at 13:52:40 


 



Pages: 1 ... 7 8 9 
Send Topic Print
Anyone Tube Roll with the ZMA yet? (Read 65426 times)
mark58
Seasoned Member
****




Posts: 5200
Re: Anyone Tube Roll with the ZMA yet?
Reply #400 - 07/07/18 at 23:13:49
 
It's up to you, Stone, but if those are all they have, they'll be gone soon. There is a German seller who always has them for $279 per quad though.  Several years ago he was selling them for as low as $169 a Quad.
Back to top
 
 

"The man that hath no music in himself, nor is not moved with the concord of sweet sounds, is fit for treasons, deceptions, and spoils;
The motions of his spirit are dull as night and his affections dark as Hell. Let no such man be trusted." William Shakespeare
  IP Logged
stone_of_tone
Seasoned Member
****


Listen Often/Listen
Deep

Posts: 2976
Re: Anyone Tube Roll with the ZMA yet?
Reply #401 - 07/08/18 at 15:18:49
 
Ahhh yes! Only two hours in on these headroom little monster's. I love the ZMA!

....50 hrs needed....of course/for full bloom....but what a steal & cryogenic too.

Running with:
https://www.upscaleaudio.com/collections/vacuum-tubes/products/mullard-e188cc-73...
input tubes
https://www.upscaleaudio.com/collections/vacuum-tubes/products/telefunken-e88cc-...
inverter tubes

RCA NOS 0A3's.
Back to top
 
 

Sony as Transport
Illuminati D-60
Audio Alchemy DTI-Pro
Audio Magic Mystic Reference I2S
Audio Alchemy DDE 3.0
Kimber Select 1030
Zen Select #76
Kimber Select 3033
Polk Audio LS-90
Tri-config/TipToes & Vibropods underneath Speakers
360 degree Rm Treats
  IP Logged
NormD
Seasoned Member
****




Posts: 111
Re: Anyone Tube Roll with the ZMA yet?
Reply #402 - 07/08/18 at 15:27:42
 
Will the 7581A's work with a stock/unmodified ZMA?
Back to top
 
 

OPPO Sonica DAC
Technics SL-1200M3D Turntable
SoundSmith The Voice cartridge
JRMedia Center running on a MacMini
Oppo 103D for video
Marantz AV8802a Pre
ZTPre & ZMA for Stereo
Rotel RMB-1585 amp
Focal Electra 1038Be speakers (93 db)
2Hsu Research ULS-15 M
  IP Logged
stone_of_tone
Seasoned Member
****


Listen Often/Listen
Deep

Posts: 2976
Re: Anyone Tube Roll with the ZMA yet?
Reply #403 - 07/08/18 at 15:31:06
 
Hi Norm.

Yup, The 7581A's are pinned the same as 6L6's.

I have them biased like the 6P's = 48~50 mA.

I will bring them up to 56 mA (after some hours on them)....they can do it/I will see/hear.
Back to top
 
 

Sony as Transport
Illuminati D-60
Audio Alchemy DTI-Pro
Audio Magic Mystic Reference I2S
Audio Alchemy DDE 3.0
Kimber Select 1030
Zen Select #76
Kimber Select 3033
Polk Audio LS-90
Tri-config/TipToes & Vibropods underneath Speakers
360 degree Rm Treats
  IP Logged
NormD
Seasoned Member
****




Posts: 111
Re: Anyone Tube Roll with the ZMA yet?
Reply #404 - 07/08/18 at 15:40:36
 
Where did you get them?
Back to top
 
 

OPPO Sonica DAC
Technics SL-1200M3D Turntable
SoundSmith The Voice cartridge
JRMedia Center running on a MacMini
Oppo 103D for video
Marantz AV8802a Pre
ZTPre & ZMA for Stereo
Rotel RMB-1585 amp
Focal Electra 1038Be speakers (93 db)
2Hsu Research ULS-15 M
  IP Logged
stone_of_tone
Seasoned Member
****


Listen Often/Listen
Deep

Posts: 2976
Re: Anyone Tube Roll with the ZMA yet?
Reply #405 - 07/08/18 at 15:53:39
 
To heck with waiting to bring up the bias....these 7581A's wanted 55~56 mA in their initial rise on the bias/balance meter's. I just put them their at 83db SPL to 91db SPL peaks and they are loving it. (Yes, everyone should have an SPL meter).

Caveat Emptor though....:
the headroom up there....you need speaker's overall & tweeter's to handle it (to appreciate them=no rolled off full range and/or with tweeter's x-over, way to high) + cabling MATTER's.
...input & inverter's too  :-*


..........fun Sunday morning...then heading out....to nice to be inside!


Norm, from Cryoset. Ron is the best.
Back to top
 
 

Sony as Transport
Illuminati D-60
Audio Alchemy DTI-Pro
Audio Magic Mystic Reference I2S
Audio Alchemy DDE 3.0
Kimber Select 1030
Zen Select #76
Kimber Select 3033
Polk Audio LS-90
Tri-config/TipToes & Vibropods underneath Speakers
360 degree Rm Treats
  IP Logged
NormD
Seasoned Member
****




Posts: 111
Re: Anyone Tube Roll with the ZMA yet?
Reply #406 - 07/08/18 at 16:04:39
 
Ah.  New Tong-Sol's Correct?
Back to top
 
 

OPPO Sonica DAC
Technics SL-1200M3D Turntable
SoundSmith The Voice cartridge
JRMedia Center running on a MacMini
Oppo 103D for video
Marantz AV8802a Pre
ZTPre & ZMA for Stereo
Rotel RMB-1585 amp
Focal Electra 1038Be speakers (93 db)
2Hsu Research ULS-15 M
  IP Logged
stone_of_tone
Seasoned Member
****


Listen Often/Listen
Deep

Posts: 2976
Re: Anyone Tube Roll with the ZMA yet?
Reply #407 - 07/08/18 at 16:13:41
 
You know it.
Back to top
 
 

Sony as Transport
Illuminati D-60
Audio Alchemy DTI-Pro
Audio Magic Mystic Reference I2S
Audio Alchemy DDE 3.0
Kimber Select 1030
Zen Select #76
Kimber Select 3033
Polk Audio LS-90
Tri-config/TipToes & Vibropods underneath Speakers
360 degree Rm Treats
  IP Logged
stone_of_tone
Seasoned Member
****


Listen Often/Listen
Deep

Posts: 2976
Re: Anyone Tube Roll with the ZMA yet?
Reply #408 - 07/08/18 at 16:44:09
 
"Ah.  New Tong-Sol's Correct?"

Always remember to go back a few posts/other page:
see reply #386....through present.  8-)

+I ordered them the morn' of July 4th...before heading out to party.
Received, in my locked mailbox yesterday (Sat) afternoon! I call Ron the lightening shipper from North CA to MN.
Back to top
 
 

Sony as Transport
Illuminati D-60
Audio Alchemy DTI-Pro
Audio Magic Mystic Reference I2S
Audio Alchemy DDE 3.0
Kimber Select 1030
Zen Select #76
Kimber Select 3033
Polk Audio LS-90
Tri-config/TipToes & Vibropods underneath Speakers
360 degree Rm Treats
  IP Logged
NormD
Seasoned Member
****




Posts: 111
Re: Anyone Tube Roll with the ZMA yet?
Reply #409 - 07/08/18 at 17:37:04
 
Thanks.  I did not go back far enough and the recommendations on this post change a lot....heh...

Note from Ron:  Sorry but I have only 1 pair of these available at this time.

Guess I am out of luck for now.  A guy on eBay has them so I may pursue that route.
Back to top
 
 

OPPO Sonica DAC
Technics SL-1200M3D Turntable
SoundSmith The Voice cartridge
JRMedia Center running on a MacMini
Oppo 103D for video
Marantz AV8802a Pre
ZTPre & ZMA for Stereo
Rotel RMB-1585 amp
Focal Electra 1038Be speakers (93 db)
2Hsu Research ULS-15 M
  IP Logged
stone_of_tone
Seasoned Member
****


Listen Often/Listen
Deep

Posts: 2976
Re: Anyone Tube Roll with the ZMA yet?
Reply #410 - 07/08/18 at 18:49:40
 
Ron say when he would get more in stock?

Initial impressions are: Very damn good...forward, but not in an aggressive way...very captivating! Treble/up there is excellent!

I look forward to the journey with these to 50 hrs. Plus, comparison to the 6P's (in which, we know are wonderful tubes).

The budget allows for the T-Sol 7027A's in August!  
Back to top
 
 

Sony as Transport
Illuminati D-60
Audio Alchemy DTI-Pro
Audio Magic Mystic Reference I2S
Audio Alchemy DDE 3.0
Kimber Select 1030
Zen Select #76
Kimber Select 3033
Polk Audio LS-90
Tri-config/TipToes & Vibropods underneath Speakers
360 degree Rm Treats
  IP Logged
NormD
Seasoned Member
****




Posts: 111
Re: Anyone Tube Roll with the ZMA yet?
Reply #411 - 07/08/18 at 20:47:52
 
Ron said he should have more in a month. In the meantime, I ordered a matched quad on eBay.
Back to top
 
 

OPPO Sonica DAC
Technics SL-1200M3D Turntable
SoundSmith The Voice cartridge
JRMedia Center running on a MacMini
Oppo 103D for video
Marantz AV8802a Pre
ZTPre & ZMA for Stereo
Rotel RMB-1585 amp
Focal Electra 1038Be speakers (93 db)
2Hsu Research ULS-15 M
  IP Logged
stone_of_tone
Seasoned Member
****


Listen Often/Listen
Deep

Posts: 2976
Re: Anyone Tube Roll with the ZMA yet?
Reply #412 - 07/08/18 at 20:59:02
 
Cool Norm.

5 hours on these and the harmonics in tone are notable + detail. Pleased I purchased them. Oh yeah, midrange is sweet and bass is taunt.

I'm really a big believer in the cryogenic process for tubes too.

Look forward to your initial impressions Norm. Unfortunately, I won't be able to enjoy more hours of their journey until Thursday or Friday.
Back to top
 
 

Sony as Transport
Illuminati D-60
Audio Alchemy DTI-Pro
Audio Magic Mystic Reference I2S
Audio Alchemy DDE 3.0
Kimber Select 1030
Zen Select #76
Kimber Select 3033
Polk Audio LS-90
Tri-config/TipToes & Vibropods underneath Speakers
360 degree Rm Treats
  IP Logged
NormD
Seasoned Member
****




Posts: 111
Re: Anyone Tube Roll with the ZMA yet?
Reply #413 - 07/09/18 at 02:46:14
 
Stone:

Have you been able to compare similar tubes that have been cryogenically treated vs. untreated?  I have not, so I cannot comment on the effects, but I am leery about the cryo process impact on tube life and integrity. The pins are metal and the tube envelope is glass and they each have different coefficients of expansion and contraction. Just using tubes inherently tests this metal-to-glass interface as they heat up and cool. My thinking is that the cryo process has an even more dramatic impact on that interface due to the differences in expansion and contraction. My preference has been to avoid cryo tubes for that reason. Just my opinion.

Norm
Back to top
 
 

OPPO Sonica DAC
Technics SL-1200M3D Turntable
SoundSmith The Voice cartridge
JRMedia Center running on a MacMini
Oppo 103D for video
Marantz AV8802a Pre
ZTPre & ZMA for Stereo
Rotel RMB-1585 amp
Focal Electra 1038Be speakers (93 db)
2Hsu Research ULS-15 M
  IP Logged
stone_of_tone
Seasoned Member
****


Listen Often/Listen
Deep

Posts: 2976
Re: Anyone Tube Roll with the ZMA yet?
Reply #414 - 07/09/18 at 21:38:14
 
It's a good opinion Norm. This cryo thing could be a bunch of whoooooey.
I have been pleased with my three quads so far from Ron. Whether, cryo has any effect and adds to tube longevity or does not, as you state....long as they perform as long as I think they should...works for me.

Norm, are you considering the enhancement to your ZMA? I don't call it an upgrade, because I enjoy my ZMA as is (four years and almost six months and counting).
Back to top
 
 

Sony as Transport
Illuminati D-60
Audio Alchemy DTI-Pro
Audio Magic Mystic Reference I2S
Audio Alchemy DDE 3.0
Kimber Select 1030
Zen Select #76
Kimber Select 3033
Polk Audio LS-90
Tri-config/TipToes & Vibropods underneath Speakers
360 degree Rm Treats
  IP Logged
NormD
Seasoned Member
****




Posts: 111
Re: Anyone Tube Roll with the ZMA yet?
Reply #415 - 07/09/18 at 22:34:31
 
I will most likely do Steve’s 25th anniversary (or ZMA2) upgrade. What else are you thinking?
Back to top
 
 

OPPO Sonica DAC
Technics SL-1200M3D Turntable
SoundSmith The Voice cartridge
JRMedia Center running on a MacMini
Oppo 103D for video
Marantz AV8802a Pre
ZTPre & ZMA for Stereo
Rotel RMB-1585 amp
Focal Electra 1038Be speakers (93 db)
2Hsu Research ULS-15 M
  IP Logged
stone_of_tone
Seasoned Member
****


Listen Often/Listen
Deep

Posts: 2976
Re: Anyone Tube Roll with the ZMA yet?
Reply #416 - 07/10/18 at 14:49:26
 
Yes, I like the ZMA2 (J of A/cool), being potentially coined, for the enhancement.

I will most likely do it too. No one else but Steve/Decware, is going to do it.

I am not going back to low power.....the ZMA is my Listening Room Amplifier  ~ period.

++, Steve does not BS about his Amps. If he says he took our ZMA to what he likes about the UFO25th.....I believe he did. I remember when I called him in Mar/April of 2001...and he told me what to expect from his SE84CS with no hyperbole....out of my original signature I still keep below....and guess what? .....he was spot on.... . The last 17 years of Decware are in the books...and counting!!
Back to top
 
 

Sony as Transport
Illuminati D-60
Audio Alchemy DTI-Pro
Audio Magic Mystic Reference I2S
Audio Alchemy DDE 3.0
Kimber Select 1030
Zen Select #76
Kimber Select 3033
Polk Audio LS-90
Tri-config/TipToes & Vibropods underneath Speakers
360 degree Rm Treats
  IP Logged
stone_of_tone
Seasoned Member
****


Listen Often/Listen
Deep

Posts: 2976
Re: Anyone Tube Roll with the ZMA yet?
Reply #417 - 07/11/18 at 21:47:11
 
I had some time to enjoy more of the 7581A's yesterday. I am enjoying these tubes immensely. I don't think I'm changing my ZMA. I'm not, I bet.

I will look in, now and again.....to see what other stuff Steve might have cookin.
Back to top
 
 

Sony as Transport
Illuminati D-60
Audio Alchemy DTI-Pro
Audio Magic Mystic Reference I2S
Audio Alchemy DDE 3.0
Kimber Select 1030
Zen Select #76
Kimber Select 3033
Polk Audio LS-90
Tri-config/TipToes & Vibropods underneath Speakers
360 degree Rm Treats
  IP Logged
NormD
Seasoned Member
****




Posts: 111
Re: Anyone Tube Roll with the ZMA yet?
Reply #418 - 07/11/18 at 22:54:06
 
Are you still running them at 55-56mA?

I thought that mine came in today....but they sent me four Gold Lion KT77's instead.  Don't think I'm going to accept that...
Back to top
 
 

OPPO Sonica DAC
Technics SL-1200M3D Turntable
SoundSmith The Voice cartridge
JRMedia Center running on a MacMini
Oppo 103D for video
Marantz AV8802a Pre
ZTPre & ZMA for Stereo
Rotel RMB-1585 amp
Focal Electra 1038Be speakers (93 db)
2Hsu Research ULS-15 M
  IP Logged
stone_of_tone
Seasoned Member
****


Listen Often/Listen
Deep

Posts: 2976
Re: Anyone Tube Roll with the ZMA yet?
Reply #419 - 07/14/18 at 00:31:03
 
Yes, I got them at 55-56 Norm. Great bass, in these too!

KT77's? It can happen. Did you try them?
Back to top
 
 

Sony as Transport
Illuminati D-60
Audio Alchemy DTI-Pro
Audio Magic Mystic Reference I2S
Audio Alchemy DDE 3.0
Kimber Select 1030
Zen Select #76
Kimber Select 3033
Polk Audio LS-90
Tri-config/TipToes & Vibropods underneath Speakers
360 degree Rm Treats
  IP Logged
Jeff of Arabica
Seasoned Member
****


Name the greatest of
all inventors...
Accident.

Posts: 583
Re: Anyone Tube Roll with the ZMA yet?
Reply #420 - 07/14/18 at 00:41:33
 
I have a LOVE/HATE realationship with NOS tubes.  I absolutely love these Phillips ECG 7027A tubes.  With my current amp make-up, these have been the best sounding of all the tubes Ive rolled.  So why do I hate them so much you might ask?  Well, I’m only a few months into them and I already have a tube that won’t stay biased.  It may be a bit unfair to hate them for this as current production could fail in equal manner, but at $400 a set after shipping, it is hard not to be a little pissed off.  NOS categorically are the best of breed sound-wise and reliability, but damn  every time I tell myself, “no more NOS” for this very reason (i.e. price with no reprieve if a failure occurs) I go and buy not just one set, but two!!  I have a backup quad of this same tube but never imagined I would be placing them any sooner than a year, maybe two.   Undecided

Se la vie!  Cracking a 16oz can of Left Coast Brewing “Simply Mosaic.”. Happy Friday folks!
Back to top
 
 

ZMA//Zen Ultra//Rachel//ZDSD//Super Zen//Taboo MKIII//PS Audio DirectStream DAC + Memory Player + P10//Muse Phono Stage//London Decca Reference//Dynavector DV-507 MKII//Zen Head//SonoruS Reel-to-Reel w/ tube playback pre-amp//Omega SAHOs//DM946
  IP Logged
stone_of_tone
Seasoned Member
****


Listen Often/Listen
Deep

Posts: 2976
Re: Anyone Tube Roll with the ZMA yet?
Reply #421 - 07/14/18 at 01:14:03
 
I read ya Jeff. I own $1500 of input NOS plat' grade from uncle Kevy.... And all are in tip top shape for three years now. Knock on wood.

Putting in A QUIET PLACE movie right now on my big Polks.....with  a Surly cold one...

Happy Friday!
Back to top
 
 

Sony as Transport
Illuminati D-60
Audio Alchemy DTI-Pro
Audio Magic Mystic Reference I2S
Audio Alchemy DDE 3.0
Kimber Select 1030
Zen Select #76
Kimber Select 3033
Polk Audio LS-90
Tri-config/TipToes & Vibropods underneath Speakers
360 degree Rm Treats
  IP Logged
Jeff of Arabica
Seasoned Member
****


Name the greatest of
all inventors...
Accident.

Posts: 583
Re: Anyone Tube Roll with the ZMA yet?
Reply #422 - 07/14/18 at 02:17:52
 
Just threw back in my PSvane EL34PH quad to give this set a some freedom to shine this weekend.  Its been awhile....
Back to top
 
 

ZMA//Zen Ultra//Rachel//ZDSD//Super Zen//Taboo MKIII//PS Audio DirectStream DAC + Memory Player + P10//Muse Phono Stage//London Decca Reference//Dynavector DV-507 MKII//Zen Head//SonoruS Reel-to-Reel w/ tube playback pre-amp//Omega SAHOs//DM946
  IP Logged
stone_of_tone
Seasoned Member
****


Listen Often/Listen
Deep

Posts: 2976
Re: Anyone Tube Roll with the ZMA yet?
Reply #423 - 07/15/18 at 14:54:45
 
I read ya Jeff (those are the 34's I want). I only have 20 hours or so on my 7581A's...nice tubes. However, I glanced over at my Gold Lion KT88's cryo....put them in this morning...it has been awhile for these!

.....the big landscape picture man....like melted butter on lobster...with your best girl, that can't get enough of you!

Love my 6P's for what they do in detail, midrange/imaging and shimmer up top (and the 7581A's have potential).  The KT88's, though...a whole other ball game of MAJESTY.................  

...it is 9 am now....Sue know's...I have to enjoy this till 1 pm...then, we have the whole rest of this beautiful Sunday to get out there!

https://www.amazon.com/Dot-Com-Blues-Jimmy-Smith/dp/B000050J47
Jimmy Smith on that sweet tone of his....only done by a Decware Class A Amp!

...sticking with new production power tubes:
7027A quad in August
PSvane EL34PH quad in October.

NOS input tubes...still a few more pairs to get...  ;)

Back to top
 
 

Sony as Transport
Illuminati D-60
Audio Alchemy DTI-Pro
Audio Magic Mystic Reference I2S
Audio Alchemy DDE 3.0
Kimber Select 1030
Zen Select #76
Kimber Select 3033
Polk Audio LS-90
Tri-config/TipToes & Vibropods underneath Speakers
360 degree Rm Treats
  IP Logged
Jeff of Arabica
Seasoned Member
****


Name the greatest of
all inventors...
Accident.

Posts: 583
Re: Anyone Tube Roll with the ZMA yet?
Reply #424 - 07/15/18 at 18:54:20
 
Ain’t that the truth!  I’ve got a selection of tubes, all so different, and all absolutely worthy of time in the ZMA.  Such a blissful dilemma   Roll Eyes

The EL34PH’s are biased at 40ma right now.  They can reach about 44 but I like to leave a smidge of headroom for micro adjustments/balance.  These are awesome tubes.  Warmer than any of the others but still exhibit some impressive detail.  So pleasant, not even a remote element of fatigue.  As a matter of fact, their strongest suit is musicality and if there was such a thing as “negative fatigue,” this tube would be the poster child.
They are incredibly stable in the biased department.  I don’t have a ton of time on them but after they warm and settle for an hour, I made a micro adjustment a couple times and they have been solid ever since.  

I am glad the 7581A’s are doing it for you so far.  You’ll have to keep up posted as that relationship progresses!  

I think Ill throw back in my KT88’s later on this afternoon...   It is a gorgeous day today, high of 83, so in a hour ill be soaking up all of that glory   Cool

But now, enjoying a little Cowboy Junkies on the EL’s, continuing the burn-in on the new ZMA guts.  What a splendid amp!
Back to top
 
 

ZMA//Zen Ultra//Rachel//ZDSD//Super Zen//Taboo MKIII//PS Audio DirectStream DAC + Memory Player + P10//Muse Phono Stage//London Decca Reference//Dynavector DV-507 MKII//Zen Head//SonoruS Reel-to-Reel w/ tube playback pre-amp//Omega SAHOs//DM946
  IP Logged
Pages: 1 ... 7 8 9 
Send Topic Print