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ZLC (Read 18798 times)
Archie
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Posts: 1989
ZLC
03/22/19 at 18:39:54
 
Anyone with a ZLC ...

I just got my ZLC and I've already blown both fuses. †I have less than 3 AMPS load connected to it (ZP3 .5A, CSP3 .5A, ZMA 1.5A, ZR2 .1A, TT .1A, DVD OPPO .1A). †When I first plugged the unit into my Leviton hospital grade, surge protecting outlets it tripped my 20 amp breaker. †The breaker held when reset. †I was checking about some system hum and I unplugged everything from the ZLC and the ZLC from the wall. †After reconnecting everything, the outlet was still hot but the ZLC fuses were blown.

Anybody have any ideas? †Nothing in the manual about this as far as I could see.
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ZLC
Technics 1200G TT w/ Ortofon Jubilee MC cart
ZMC1
ZP3 (25th A Mods)
ZR2 (25th A Mods)
CSP3 (25th A mods)
ZMA (25th A mods)
Homemade Big Betsy Speakers (F15s)
Silver Cabling
DIY Isolation platforms under amps & TT.
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Lon
Seasoned Member
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"Love without
guts is
worthless!"
Philip K. Dick

Posts: 17127
Re: ZLC
Reply #1 - 03/22/19 at 19:00:17
 
Archie,

This shouldn't happen. Did you check the size of the fuse?--should be 8 amp.  I have.a TV, a DVR, a universal player, a CSP2+ with 25th Mods and a Taboo Mk III connected to my ZLC. Has operated flawlessly and acted as if it isn't even jogging, for two weeks plus.

Sorry this has happened. Seems if the fuses are 8 or 10 amp a call in to Steve is the next step.
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HR-1,ZTPRE,ZBIT,ZROCK2,SE84UFO3-25th x2, CSP3-25th.Taboo Mk IV; Rega RP3 w/25th mods PS Audio: DMP+DSD,P15,NPC,PowerBases,AC-12 pwr cbls, Statement spkr cbls;Mapleshade:Samson V3; Oppo UDP-205; VooDoo:Cremona+Amati intrcncts, Iso-Pods;headphones:PM1,HD800S,ZMF Ori
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Archie
Seasoned Member
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Posts: 1989
Re: ZLC
Reply #2 - 03/22/19 at 19:30:21
 
I'm waiting for him to call back.  The only thing I can think of is that when I plugged everything back in, the amps were on and something surged.

Of course, in my neck of the woods, fuses are hard to come by.  I found a pair of T5A, 240V fuses at my local True Value.  Most of what they have are for christmas lights!  These shouldn't blow given my load but who knows?
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ZLC
Technics 1200G TT w/ Ortofon Jubilee MC cart
ZMC1
ZP3 (25th A Mods)
ZR2 (25th A Mods)
CSP3 (25th A mods)
ZMA (25th A mods)
Homemade Big Betsy Speakers (F15s)
Silver Cabling
DIY Isolation platforms under amps & TT.
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Lon
Seasoned Member
****


"Love without
guts is
worthless!"
Philip K. Dick

Posts: 17127
Re: ZLC
Reply #3 - 03/22/19 at 19:38:57
 
Does seem odd that a 5 amp would blow, but who knows. Hope he calls back and this gets resolved.

So far as I can tell you and I are the only ones mentioning having received the ZLC on the board. I'm enjoying mine. I had very high expectations and most were met. Rock solid, though the top cover does "ring" and I dampened it with a little brass elephant. . . . I don't like ringing case parts, seems it may be vibration prone.
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HR-1,ZTPRE,ZBIT,ZROCK2,SE84UFO3-25th x2, CSP3-25th.Taboo Mk IV; Rega RP3 w/25th mods PS Audio: DMP+DSD,P15,NPC,PowerBases,AC-12 pwr cbls, Statement spkr cbls;Mapleshade:Samson V3; Oppo UDP-205; VooDoo:Cremona+Amati intrcncts, Iso-Pods;headphones:PM1,HD800S,ZMF Ori
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ScottNC
Seasoned Member
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Posts: 325
Re: ZLC
Reply #4 - 03/22/19 at 21:34:15
 
I got mine about an hour ago, going to give run in an hour or so. Bummer on the fuse, I canít imagine it having the wrong fuse in it, itís looking like they really burn these things in when they go through all the final steps after building them.
I have to say the packaging is pretty impressive, it took about 20 minutes to get at the thing!
I hope you get it resolved, I have the same problem here finding anything like a fuse, Iíve been meaning to get a full set of internal and external from Steve for backup and tubes too, guess Iíll be on that ASAP, if something goes for me Iím out of luck also.
Keep us posted on what you hear.
Best,
Scott
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TORII MKIV-25th,ZBIT,ZROCK2-25th,ZTPRE-25th,ZLC,DNA2's, REL S/3 SHO
MyTek Brooklyn DAC+,Sonore ultraRendu LinearPS,sonicTransport APi7 4TB
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Geno
Seasoned Member
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Without music, life
would be a mistake.
Nietzsche

Posts: 984
Re: ZLC
Reply #5 - 03/23/19 at 16:19:00
 
Iím sorry youíre having trouble Adam. That kind of crap can be so aggravating! Iíve had mine going for a week or so with no issues. I hope by now you have talked to Steve and have figured out what happened.

Best,

Geno
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SE84UFO(25th Mods)
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PS Audio DSDAC JR / Cambr.Audio CXC / LRaven AudioPC / ZBIT
Technics 1210MK5(KAB Mods)-KAB/Ortof ProS 40 cart / ZP3(25th Mods)
Otari MX5050 R2R
Decware ZLC
Alnico Betsy Baffles OR Crystal 10 Baffles
(2) 12" Lii Bass Baffles
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Archie
Seasoned Member
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Posts: 1989
Re: ZLC
Reply #6 - 03/23/19 at 17:50:44
 
Steve will update the manual but he said the toroid transformer is so efficient that if the 60Hz AC is at its peak when you plug it in it can pop the breaker. †He said that once it's plugged in to just leave it that way. †As far as the fuses, the 5A blew immediately which Steve said was inevitable given that it's a 10A toroid. †The 8A may be borderline but he put them in for safety sake. †He's sending me some fuses, hopefully some 10A. †There is one red herring in my power and that's that I have Leviton "surge" protection outlets. †Steve looked them up and while he couldn't see any problem, he suggested that if my problem persists that they could be somehow contributing.

If some of what I wrote doesn't make sense, I may have got it wrong since I really don't understand much of this.
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ZLC
Technics 1200G TT w/ Ortofon Jubilee MC cart
ZMC1
ZP3 (25th A Mods)
ZR2 (25th A Mods)
CSP3 (25th A mods)
ZMA (25th A mods)
Homemade Big Betsy Speakers (F15s)
Silver Cabling
DIY Isolation platforms under amps & TT.
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Lon
Seasoned Member
****


"Love without
guts is
worthless!"
Philip K. Dick

Posts: 17127
Re: ZLC
Reply #7 - 03/23/19 at 18:20:24
 
Glad the mystery is solved; hope you get fuses ASAP and all goes well.
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HR-1,ZTPRE,ZBIT,ZROCK2,SE84UFO3-25th x2, CSP3-25th.Taboo Mk IV; Rega RP3 w/25th mods PS Audio: DMP+DSD,P15,NPC,PowerBases,AC-12 pwr cbls, Statement spkr cbls;Mapleshade:Samson V3; Oppo UDP-205; VooDoo:Cremona+Amati intrcncts, Iso-Pods;headphones:PM1,HD800S,ZMF Ori
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Geno
Seasoned Member
****


Without music, life
would be a mistake.
Nietzsche

Posts: 984
Re: ZLC
Reply #8 - 03/23/19 at 19:16:27
 
Hope the new fuses get to you quickly. Fingers crossed that you donít have any more problems, but it sounds like there is a chance you may have to replace the outlets. Keep us posted on how it goes.
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SE84UFO(25th Mods)
CSP3
PS Audio DSDAC JR / Cambr.Audio CXC / LRaven AudioPC / ZBIT
Technics 1210MK5(KAB Mods)-KAB/Ortof ProS 40 cart / ZP3(25th Mods)
Otari MX5050 R2R
Decware ZLC
Alnico Betsy Baffles OR Crystal 10 Baffles
(2) 12" Lii Bass Baffles
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Archie
Seasoned Member
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Posts: 1989
Re: ZLC
Reply #9 - 03/23/19 at 22:57:11
 
I'll be bummed if I have to change an outlet.  Besides being hard to do given its location, I swapped the Hospital grade outlets I had there for these thinking they'd give me better protection.  Could be a case of too much technology.  We shall see.
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ZLC
Technics 1200G TT w/ Ortofon Jubilee MC cart
ZMC1
ZP3 (25th A Mods)
ZR2 (25th A Mods)
CSP3 (25th A mods)
ZMA (25th A mods)
Homemade Big Betsy Speakers (F15s)
Silver Cabling
DIY Isolation platforms under amps & TT.
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Archie
Seasoned Member
****




Posts: 1989
Re: ZLC
Reply #10 - 03/25/19 at 21:01:14
 
Steve sent me a pile of fuses so I could blow a few. †They were all 8A and fortunately I didn't blow any. †I first turned off my breaker to the outlet and plugged everything in but with the ZLC switches off. †After turning the breaker back on, the voltmeter read 120 V and I turned on all of the switches without incident. †I'll see later how it does with the power down and power up cycle. †I haven't decided whether to use the ZLC switches or the component switches. †The only difference I can see is that by using the ZLC switches I might save wear and tear on the component switches which are likely harder to replace when worn out.

But here's the amazing part. †At start up, my ZMA meters were 8mA higher than where I'd left them last night! †I had to dial them back. †After 45 minutes of warm up they lost only 1 to 2 mA, if that. †Any ideas what's up with that?
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ZLC
Technics 1200G TT w/ Ortofon Jubilee MC cart
ZMC1
ZP3 (25th A Mods)
ZR2 (25th A Mods)
CSP3 (25th A mods)
ZMA (25th A mods)
Homemade Big Betsy Speakers (F15s)
Silver Cabling
DIY Isolation platforms under amps & TT.
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Lon
Seasoned Member
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"Love without
guts is
worthless!"
Philip K. Dick

Posts: 17127
Re: ZLC
Reply #11 - 03/25/19 at 21:14:15
 
Glad it's all functioning. Don't know what to say about your meters . . . or my display info.
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HR-1,ZTPRE,ZBIT,ZROCK2,SE84UFO3-25th x2, CSP3-25th.Taboo Mk IV; Rega RP3 w/25th mods PS Audio: DMP+DSD,P15,NPC,PowerBases,AC-12 pwr cbls, Statement spkr cbls;Mapleshade:Samson V3; Oppo UDP-205; VooDoo:Cremona+Amati intrcncts, Iso-Pods;headphones:PM1,HD800S,ZMF Ori
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Archie
Seasoned Member
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Posts: 1989
Re: ZLC
Reply #12 - 03/25/19 at 21:30:42
 
Steve said the other day something about the high efficiency of the toroid transformer and I think there is something in the manual about it being super fast in supplying power for peaks. †I wonder if it makes the amps more efficient somehow? †IDK, I sent him an email letting him know my ZLC was on-line and I mentioned the bias effect. †Maybe he'll shed some light on it.

Edit:  As the ZMA has more fully warmed up the bias has lowered more but I think I'm still dialed about 4mA lower than without the ZLC.
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ZLC
Technics 1200G TT w/ Ortofon Jubilee MC cart
ZMC1
ZP3 (25th A Mods)
ZR2 (25th A Mods)
CSP3 (25th A mods)
ZMA (25th A mods)
Homemade Big Betsy Speakers (F15s)
Silver Cabling
DIY Isolation platforms under amps & TT.
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Geno
Seasoned Member
****


Without music, life
would be a mistake.
Nietzsche

Posts: 984
Re: ZLC
Reply #13 - 03/25/19 at 23:24:39
 
Hope it will act right for you this time, Archie.

Is it ok to leave it on all the time? Mine has been on non-stop since I got it about 12 days ago.
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SE84UFO(25th Mods)
CSP3
PS Audio DSDAC JR / Cambr.Audio CXC / LRaven AudioPC / ZBIT
Technics 1210MK5(KAB Mods)-KAB/Ortof ProS 40 cart / ZP3(25th Mods)
Otari MX5050 R2R
Decware ZLC
Alnico Betsy Baffles OR Crystal 10 Baffles
(2) 12" Lii Bass Baffles
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Archie
Seasoned Member
****




Posts: 1989
Re: ZLC
Reply #14 - 03/26/19 at 00:34:11
 
So far so good. †The other day Steve told me to keep the ZLC plugged in always. †When the switches are all off, it doesn't draw any current but the toroid stays charged. †I plan on using the ZLC switches to turn components on and off. †The ZR2 switch will stay on all the time though.
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ZLC
Technics 1200G TT w/ Ortofon Jubilee MC cart
ZMC1
ZP3 (25th A Mods)
ZR2 (25th A Mods)
CSP3 (25th A mods)
ZMA (25th A mods)
Homemade Big Betsy Speakers (F15s)
Silver Cabling
DIY Isolation platforms under amps & TT.
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Lon
Seasoned Member
****


"Love without
guts is
worthless!"
Philip K. Dick

Posts: 17127
Re: ZLC
Reply #15 - 03/26/19 at 00:37:30
 
I leave mine on all the time. I believe it's designed to be perfectly fine with that.
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HR-1,ZTPRE,ZBIT,ZROCK2,SE84UFO3-25th x2, CSP3-25th.Taboo Mk IV; Rega RP3 w/25th mods PS Audio: DMP+DSD,P15,NPC,PowerBases,AC-12 pwr cbls, Statement spkr cbls;Mapleshade:Samson V3; Oppo UDP-205; VooDoo:Cremona+Amati intrcncts, Iso-Pods;headphones:PM1,HD800S,ZMF Ori
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Geno
Seasoned Member
****


Without music, life
would be a mistake.
Nietzsche

Posts: 984
Re: ZLC
Reply #16 - 03/26/19 at 00:42:57
 
Archie,

Your idea of using the switches on the ZLC to power components on and off may be the way to go. Keeps the individual component switches from wearing out.
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SE84UFO(25th Mods)
CSP3
PS Audio DSDAC JR / Cambr.Audio CXC / LRaven AudioPC / ZBIT
Technics 1210MK5(KAB Mods)-KAB/Ortof ProS 40 cart / ZP3(25th Mods)
Otari MX5050 R2R
Decware ZLC
Alnico Betsy Baffles OR Crystal 10 Baffles
(2) 12" Lii Bass Baffles
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Archie
Seasoned Member
****




Posts: 1989
Re: ZLC
Reply #17 - 03/26/19 at 16:46:54
 
I don't know if it's a transference of the weight and heft of the ZLC itself into my psyche or a real effect but the music I played last night had a weight and density at the base that was impressive. †It seemed to have a solid foundation that was somewhat lacking before.

I have a suggestion for Steve for the blanks above the ZLC switches. †How about labels either with or without lights behind them. †Six switches is beyond my ability to consistently remember what they correspond to. †My typical limit is two. † Wink
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ZLC
Technics 1200G TT w/ Ortofon Jubilee MC cart
ZMC1
ZP3 (25th A Mods)
ZR2 (25th A Mods)
CSP3 (25th A mods)
ZMA (25th A mods)
Homemade Big Betsy Speakers (F15s)
Silver Cabling
DIY Isolation platforms under amps & TT.
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Geno
Seasoned Member
****


Without music, life
would be a mistake.
Nietzsche

Posts: 984
Re: ZLC
Reply #18 - 03/26/19 at 17:16:21
 
Ha. It's funny that you say that, because last night I tried powering everything off using the ZLC switches and had to end up making a note so I'd remember what was what.  I just got through using a label maker here at work to make some labels to stick on when I get home.
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SE84UFO(25th Mods)
CSP3
PS Audio DSDAC JR / Cambr.Audio CXC / LRaven AudioPC / ZBIT
Technics 1210MK5(KAB Mods)-KAB/Ortof ProS 40 cart / ZP3(25th Mods)
Otari MX5050 R2R
Decware ZLC
Alnico Betsy Baffles OR Crystal 10 Baffles
(2) 12" Lii Bass Baffles
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Archie
Seasoned Member
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Posts: 1989
Re: ZLC
Reply #19 - 03/26/19 at 17:31:58
 
I know! †I made labels too but they don't stick very well. †I wonder if we can find those inserts in white so a sharpie would show up. †I have mine in a cabinet so aesthetics aren't as important.
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ZLC
Technics 1200G TT w/ Ortofon Jubilee MC cart
ZMC1
ZP3 (25th A Mods)
ZR2 (25th A Mods)
CSP3 (25th A mods)
ZMA (25th A mods)
Homemade Big Betsy Speakers (F15s)
Silver Cabling
DIY Isolation platforms under amps & TT.
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Archie
Seasoned Member
****




Posts: 1989
Re: ZLC
Reply #20 - 03/26/19 at 18:56:54
 
Does anyone know the actual hole size that the plugs fill? †I found white-ish plugs but I don't know the size without pulling a plug which has proved difficult without taking the ZLC cover off. †I think they are 3/4 inch though. †Or I could use a white paint-pen on the black covers.
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ZLC
Technics 1200G TT w/ Ortofon Jubilee MC cart
ZMC1
ZP3 (25th A Mods)
ZR2 (25th A Mods)
CSP3 (25th A mods)
ZMA (25th A mods)
Homemade Big Betsy Speakers (F15s)
Silver Cabling
DIY Isolation platforms under amps & TT.
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ScottNC
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Posts: 325
Re: ZLC
Reply #21 - 03/26/19 at 19:22:44
 
Brother P-Touch † Smiley

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ZLC.jpg

TORII MKIV-25th,ZBIT,ZROCK2-25th,ZTPRE-25th,ZLC,DNA2's, REL S/3 SHO
MyTek Brooklyn DAC+,Sonore ultraRendu LinearPS,sonicTransport APi7 4TB
Woo WA6, Sennheiser HD660s
RoomTreatments,LineFeed,DHC1ís,DSRís,ZENST,TriodeWireLabs,TimberNation Maple Plats
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Geno
Seasoned Member
****


Without music, life
would be a mistake.
Nietzsche

Posts: 984
Re: ZLC
Reply #22 - 03/26/19 at 19:41:02
 
I just used the exact same label maker to make labels, Scott!  Are they sticking ok?
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SE84UFO(25th Mods)
CSP3
PS Audio DSDAC JR / Cambr.Audio CXC / LRaven AudioPC / ZBIT
Technics 1210MK5(KAB Mods)-KAB/Ortof ProS 40 cart / ZP3(25th Mods)
Otari MX5050 R2R
Decware ZLC
Alnico Betsy Baffles OR Crystal 10 Baffles
(2) 12" Lii Bass Baffles
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ScottNC
Seasoned Member
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Posts: 325
Re: ZLC
Reply #23 - 03/26/19 at 19:44:12
 
So far, so good.
I have everything on and use component switches, but I still wanted to know what was where, plus a couple things are on 24/7
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TORII MKIV-25th,ZBIT,ZROCK2-25th,ZTPRE-25th,ZLC,DNA2's, REL S/3 SHO
MyTek Brooklyn DAC+,Sonore ultraRendu LinearPS,sonicTransport APi7 4TB
Woo WA6, Sennheiser HD660s
RoomTreatments,LineFeed,DHC1ís,DSRís,ZENST,TriodeWireLabs,TimberNation Maple Plats
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Geno
Seasoned Member
****


Without music, life
would be a mistake.
Nietzsche

Posts: 984
Re: ZLC
Reply #24 - 03/26/19 at 19:45:15
 
Adam, 3/4" looks right, but white paint pen printing might look pretty cool.
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SE84UFO(25th Mods)
CSP3
PS Audio DSDAC JR / Cambr.Audio CXC / LRaven AudioPC / ZBIT
Technics 1210MK5(KAB Mods)-KAB/Ortof ProS 40 cart / ZP3(25th Mods)
Otari MX5050 R2R
Decware ZLC
Alnico Betsy Baffles OR Crystal 10 Baffles
(2) 12" Lii Bass Baffles
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Archie
Seasoned Member
****




Posts: 1989
Re: ZLC
Reply #25 - 03/26/19 at 21:14:23
 
I went the white paint route. †Since mine is in a cabinet penmanship didn't count. † Tongue

I like turning things on and off from a central location. †Reaching behind the ZP3 and CSP3 transformers was always a bit of a pain.

This is a really nice piece of equipment. †Anyone need a slightly used Trip-lite? † Grin
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ZLC
Technics 1200G TT w/ Ortofon Jubilee MC cart
ZMC1
ZP3 (25th A Mods)
ZR2 (25th A Mods)
CSP3 (25th A mods)
ZMA (25th A mods)
Homemade Big Betsy Speakers (F15s)
Silver Cabling
DIY Isolation platforms under amps & TT.
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Lon
Seasoned Member
****


"Love without
guts is
worthless!"
Philip K. Dick

Posts: 17127
Re: ZLC
Reply #26 - 03/26/19 at 21:56:49
 
At the moment I'm only turning one or two items on and off on that system and I have those two plugged into the 1 and 2 spots, easy to remember. The others (DVR, TV, Universal player) I just leave on all the time. (The TV has its own standby state when plugged in and the ZLC switch is on).
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HR-1,ZTPRE,ZBIT,ZROCK2,SE84UFO3-25th x2, CSP3-25th.Taboo Mk IV; Rega RP3 w/25th mods PS Audio: DMP+DSD,P15,NPC,PowerBases,AC-12 pwr cbls, Statement spkr cbls;Mapleshade:Samson V3; Oppo UDP-205; VooDoo:Cremona+Amati intrcncts, Iso-Pods;headphones:PM1,HD800S,ZMF Ori
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Geno
Seasoned Member
****


Without music, life
would be a mistake.
Nietzsche

Posts: 984
Re: ZLC
Reply #27 - 03/28/19 at 02:36:22
 
Got my labels on. They stuck pretty well but I can see what Archie was talking about when he said he had trouble. If they fall off, Iíll go to the white paint pen.
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00788BEA-4F86-46FF-BF72-951F58AF9A93.jpeg

SE84UFO(25th Mods)
CSP3
PS Audio DSDAC JR / Cambr.Audio CXC / LRaven AudioPC / ZBIT
Technics 1210MK5(KAB Mods)-KAB/Ortof ProS 40 cart / ZP3(25th Mods)
Otari MX5050 R2R
Decware ZLC
Alnico Betsy Baffles OR Crystal 10 Baffles
(2) 12" Lii Bass Baffles
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Steve Deckert
Administrator
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If the 1st watt
sucks why continue?

Posts: 4719
Re: ZLC
Reply #28 - 03/28/19 at 03:54:37
 

What a fabulous idea to use the hole plugs as labels !!!   Great Job!  

The hole diameter is 0.87 or 7/8 inch.

Steve
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If the 1st watt
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Re: ZLC
Reply #29 - 03/28/19 at 04:03:24
 

Regarding ZMA bias...

When the line voltage drops, the ZMA bias also drops.  When the line voltage goes up, the ZMA bias will also go up.  

Regarding sound, the stored energy in such a huge transformer is going to pack a pretty serious punch compared to a wall outlet so amplifiers that actually consume some power are certainly going to sound better.

Steve
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Archie
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Posts: 1989
Re: ZLC
Reply #30 - 03/28/19 at 16:50:22
 
Steve, I'm not sure how to interpret what you said about line voltage and bias relative to what I observed. †The ZLC voltmeter read 120V, which is very likely what I always have (my electric meter has a voltage readout that stays pretty steady at 240V) but my meters read 8mA higher with the ZLC than without. †Once I dialed the bias back it has stayed constant. †Have you looked at your ZMA bias with and without the ZLC? †I don't know if this changes anything about how my ZMA runs but I thought it was an interesting effect.
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ZLC
Technics 1200G TT w/ Ortofon Jubilee MC cart
ZMC1
ZP3 (25th A Mods)
ZR2 (25th A Mods)
CSP3 (25th A mods)
ZMA (25th A mods)
Homemade Big Betsy Speakers (F15s)
Silver Cabling
DIY Isolation platforms under amps & TT.
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Archie
Seasoned Member
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Posts: 1989
Re: ZLC
Reply #31 - 03/30/19 at 17:15:07
 
I put the 6P tubes back in my ZMA and have the bias set at 60mA.  The point I want to make is that now my output transformers are running barely more than warm.  Before the ZLC I could expect 120+ degrees.  If I had to guess, I'd say they are well below 110.
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ZLC
Technics 1200G TT w/ Ortofon Jubilee MC cart
ZMC1
ZP3 (25th A Mods)
ZR2 (25th A Mods)
CSP3 (25th A mods)
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Steve Deckert
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Re: ZLC
Reply #32 - 03/30/19 at 17:44:39
 

If you think about it, noise on a 50/60 cycle wave such as the AC voltage at the outlet, would not necessarily be in phase with the fundamental frequency of 50/60 cycles.  You can be certain that any out-of-phase signals, or DC entering into the primary of a power transformer is going to create heat and lower efficiency.  My guess is that your amp runs cooler because there is no longer any noise on its primary windings.  

Steve
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Re: ZLC
Reply #33 - 03/30/19 at 21:52:25
 
Certainly a welcome effect! †I think this must tie into the bias difference somehow as well. †Maybe we now have less heat and more music. † Smiley
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Re: ZLC
Reply #34 - 03/31/19 at 00:59:09
 
Call me a perfectionist...
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Re: ZLC
Reply #35 - 03/31/19 at 01:32:41
 
Ahhh...
Funny...Had to have it
I like the round stickers
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Re: ZLC
Reply #36 - 03/31/19 at 01:41:43
 
I'm thinking grey or silver stickers with black hand written lettering. I think that will look cool. Cool

HK
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Re: ZLC
Reply #37 - 03/31/19 at 02:02:04
 
Geno needs another ZLC for his turntable. . . Wink
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Re: ZLC
Reply #38 - 03/31/19 at 02:09:56
 
I surely do need another one, Lon!  

Thatís funny, Scott! Great minds think alike Cool
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Re: ZLC
Reply #39 - 04/04/19 at 18:56:49
 
Okay, I think my ZLC is well-broken-in by now. I began experimenting with incorporating it into my main system Tuesday and have continued into today.

I tried all the analog components plugged into the ZLC and all digital into the PS Audio P10. And then I tried the reverse, all analog into the P10 and all digital into the ZLC. My conclusion: the original option was the best, all components plugged into the P10. The difference was really not subtle--all components into the P10 exhibited noticeably more dynamic contrast and more "focus," with the best tonal balance.

Then I once again plugged the ZLC between the wall and the P10, so that the only item the ZLC was feeding was the P10 itself. Subtly I found this was the best configuration. There is a touch more mellowness to the overall sound, and a bit of a more controlled feel overall. I'm leaving this configuration in place. All power cords are the PS Audio PerfectWave AC-12 for all components. The ZLC is sitting atop the P10, which sits on a PS Audio PowerBase on the top shelf of my Mapleshade Audio Samson Rack Ver. 3. Like all my other components the P10 sits on VooDoo Cable Iso-Pod footers; as I don't yet have enough the ZLC sits on four Herbie's Audio Lab Iso-Cups with Green Moss Quartz balls.

Sound is very very good. The ZROCK2 is finally FINALLY broken in and sounding fantastic and that is what spurred this whole experimentation. I did this in waves as I found it takes about 12 or more hours after making the plug in and out changes before all the components are again at their best. . . . So the present configuration is only in place about ten hours but I can already tell it's my favorite and tomorrow morning it should "be all it can be" and I bet it knocks my socks off.

Over the last few years with my move back to the small powered amps, the "Z Amigos" of ZBIT, ZROCK2 and ZTPRE, and all the wonderful 25th Anniversary Mods the system has become a bean-stalk climbing beast. I love the "nature" of the sound.

One day I may have another ZLC to put back in that new headphone system. It sounds pretty okay without one so no real hurry. . . and that's good because I am very BROKE after all the changes I've shelled out for. . . .
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Re: ZLC
Reply #40 - 04/04/19 at 18:59:55
 
And one final note: the ZLC continues to "seemingly" deliver about 5 more volts into the P10 than it shows entering into the ZLC on the gauge in the back.

Whether this is really happening or not. . . . well I've decided not to worry about it. I consulted several other P10 owners and they didn't seem to feel that it would make any difference. I've gotten pretty good at convincing myself not to worry about certain things so I think I'll succeed in just forgetting about that soon.
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Re: ZLC
Reply #41 - 04/04/19 at 20:49:26
 
Lon,
Great to hear things are coming together for you and things are settling in to sound great. Nice review.

Best,
Scott
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Re: ZLC
Reply #42 - 04/04/19 at 22:11:02
 
Thanks Scott. The modded ZROCK2's sound really threw me for a loop and it has been one of the biggest "break-in" processes I've been through. Hopefully I have the best possible sound now with all these components. I'm looking forward to just settling in and listening.
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Re: ZLC
Reply #43 - 04/04/19 at 22:40:13
 
And one final note: the ZLC continues to "seemingly" deliver about 5 more volts into the P10 than it shows entering into the ZLC on the gauge in the back.

Lon: Sounds like meters to me. One component of the other.
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Re: ZLC
Reply #44 - 04/04/19 at 23:01:52
 
I don't know, I'd like to think so. But. . . both read the same incoming voltage until I connect them together. The P10 believes it is receiving more volts. I don't think it's a big deal but I don't think it's just the gauges.
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Re: ZLC
Reply #45 - 04/04/19 at 23:46:10
 
Given how differently my ZMA biases and the lower operating temperature of the transformers, I suspect something real is going on -- not just a meter inconsistency.  5V would be a big difference too.
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Re: ZLC
Reply #46 - 04/04/19 at 23:54:12
 
"Something is happening. . . but you don't know what it is. . . do you. . . Mr. Jones."
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Re: ZLC
Reply #47 - 04/05/19 at 04:50:45
 
My ZLC arrives Monday. I think I have small ground loop on my ZP3 because thereís an audible hum when my Toriiís Turned about half way. Itís not audible with music playing but I Think it could be quieter. Weíll see soon.
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Re: ZLC
Reply #48 - 04/08/19 at 00:59:51
 
Received my ZLC on Friday. Plugged it in the wall, connected ZMA, ZP3, Jade, Ambre, Zstage and TT. I just noticed with all the ZLC switches off I can hear a loud hum every few minutes coming from the ZLC, Is this normal? The hum only lasts a couple of seconds and then it stops until the next hum starts. Any thoughts are appreciated.
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Re: ZLC
Reply #49 - 04/08/19 at 03:28:34
 
Are you sure itís coming from the ZLC itself?  If you are certain that it is, Iíd unplug everything and see if it hums with just the ZLC plugged into the wall. If it hums with nothing plugged in, contact Steve. If no hum, then plug in one component at a time until you figure out where the ground loop is. Good luck!
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