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ZROCK Tube Rolling (Read 358 times)
P K
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ZROCK Tube Rolling
08/06/17 at 18:38:37
 
I have about 50 hours on my ZROCK2 and it is hitting its stride with a wider and deeper soundstage (than when it was brand new (three days ago).

The tube Steve supplied is a red tip 5963 made in U.S.A. and Steve told me he found some special NOS tubes for the ZROCK.

I am curious what is the make of the tube that Steve supplied (it is a short plate gray with two long ribs and three cross ribs (like a double pane window). The "Window Pane" is flanked by two small rectangle holes aligned with the center cross rib.

Photos to follow

I have enjoyed tube rolling in the past, does anyone have any suggestions or should I just enjoy the tube Steve supplied for the 10,000 hours

Peter
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P K
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Re: ZROCK Tube Rolling
Reply #1 - 08/06/17 at 19:15:59
 
My research says the 5963 U.S.A. gray plates is a RCA tube
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Lon
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Re: ZROCK Tube Rolling
Reply #2 - 08/06/17 at 20:11:55
 
Peter, thanks for weighing in. If you are enjoying the sound of that tube, keep using it for a while. It sounds as if it's a good one.

I'm interested in hearing more of your sonic impressions!
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Decware:HR-1,ZP3,ZTPRE,Torii MkIII,ZBIT,Taboo MkIV;PS Audio:DMP+DS,P10,PowerBases,AC-12 pcs,Mapleshade:Dbl Helix+,V2+V3;CambridgeAudio CXU;Rega RP3,TTPSU,wh belt,all Groovetracer upgrades,Exact2;VooDoo Cremona +Amati,Iso-Pods;MD90-T SE tuner,Oppo PM-1,Audeze LCD-2
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P K
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Posts: 192
Re: ZROCK Tube Rolling
Reply #3 - 08/06/17 at 21:06:43
 

I agree with the following that another member posted:

The ZROCK made a very noticeable improvement in density throughout the frequency range everything sounded richer, fuller with more detail and with an unexpected increase in the soundstage which surprised me.

I am really surprised by how much more information I am hearing now and how much wider and deeper the soundstage seems to be.

I was also concerned that I would have too much bass, you know the non musical fill in type bass, not the case at all, everything is very balanced tight and full.
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Lon
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"Love without
guts is
worthless!"
Philip K. D*ck

Posts: 12626
Re: ZROCK Tube Rolling
Reply #4 - 08/06/17 at 21:11:03
 
Thanks. It's a long wait for mine!
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Decware:HR-1,ZP3,ZTPRE,Torii MkIII,ZBIT,Taboo MkIV;PS Audio:DMP+DS,P10,PowerBases,AC-12 pcs,Mapleshade:Dbl Helix+,V2+V3;CambridgeAudio CXU;Rega RP3,TTPSU,wh belt,all Groovetracer upgrades,Exact2;VooDoo Cremona +Amati,Iso-Pods;MD90-T SE tuner,Oppo PM-1,Audeze LCD-2
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P K
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Posts: 192
Re: ZROCK Tube Rolling
Reply #5 - 09/13/17 at 22:09:28
 
The RCA 12au7 Tube That Steve D uses seems to offer a fuller lush sound than The $80 Mazda 12au7 that I used for tube rolling.  Sometimes the RCA is a little too lush (syrupy), but the Mazda is a little boring, but more linear sound.

I keep going back and forth.

Any one else try tube rolling in a ZRock Undecided Undecided
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P K
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Posts: 192
Re: ZROCK Tube Rolling
Reply #6 - 09/14/17 at 00:29:03
 
Back To The Mazda, tighter bass and clarity but a little boring Cool
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SonicSeeker
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Re: ZROCK Tube Rolling
Reply #7 - 09/14/17 at 19:08:48
 
I have tried RCA clear tops RCA grey plates Gold Lion re-issue and the one Steve provides. I ended up using the Gold Lion it seemed to give a good balance between nice tight bass and a fuller lush sound. I also like that it is a current production tube so I will be able to replace it when needed. I am sure curiosity will cause me to try some more of course, but I am happy for now.
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