Topaz Low-Capacitance Isolation Transformers - for Affordably Clean Power
Oct 1, 2018 at 11:42 PM Post #211 of 562
Oct 2, 2018 at 7:18 AM Post #212 of 562
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Oct 2, 2018 at 12:42 PM Post #213 of 562
Oct 2, 2018 at 1:02 PM Post #214 of 562
Awesome, done any listening yet? You still have those Adams?
Not yet. I need to switch out the wall outlet to a receptacle that can accept a 20A plug. Waiting until my wife is available to read the multimeter as I flip circuit breakers to determine which one owns that outlet. I’ll report back once she’s been conscripted.

I still have the Adams and originally this was supposed to be for that system and I was going to make a second one with a 500va isolation transformer (IT) for my headphone system. Well as it turns out the topaz transformer I had was a 125va not a 500 va so it’s useless to use with any more than 1 or 2 items. I’m going to use some more of the 10 awg and put plug ends on the 125va one and see if I can figure out a use for it while I seek out a good deal on a 500 or 750va IT.

Here’s the shell for the next one:
959596A1-1176-4F79-8B2D-773B60A06B03.jpeg
 
Oct 2, 2018 at 1:18 PM Post #215 of 562
Not yet. I need to switch out the wall outlet to a receptacle that can accept a 20A plug. Waiting until my wife is available to read the multimeter as I flip circuit breakers to determine which one owns that outlet. I’ll report back once she’s been conscripted.

I still have the Adams and originally this was supposed to be for that system and I was going to make a second one with a 500va isolation transformer (IT) for my headphone system. Well as it turns out the topaz transformer I had was a 125va not a 500 va so it’s useless to use with any more than 1 or 2 items. I’m going to use some more of the 10 awg and put plug ends on the 125va one and see if I can figure out a use for it while I seek out a good deal on a 500 or 750va IT.

Here’s the shell for the next one:
How much power does your headphone setup draw? O.o
 
Oct 2, 2018 at 1:29 PM Post #216 of 562
How much power does your headphone setup draw? O.o

DAC 35w
LPS-1.2 36w
LPS-1.2 36w
Amp 200w
LPS4 20w?

So about 327w total
 
Oct 2, 2018 at 1:34 PM Post #217 of 562
DAC 35w
LPS-1.2 36w
LPS-1.2 36w
Amp 200w
LPS4 20w?

So about 327w total

I think optimally you wouldn't want the ultracaps connected to the topaz, theyre already isolated from the mains so the meanwell smps' would be injecting some noise into the system. The headphone amp is 200w? Whats the lps4?
 
Oct 2, 2018 at 1:45 PM Post #218 of 562
I think optimally you wouldn't want the ultracaps connected to the topaz, theyre already isolated from the mains so the meanwell smps' would be injecting some noise into the system. The headphone amp is 200w? Whats the lps4?

-The ultracaps will be connected to a DIY sigma11 eventually which will be plugged into the IT so I stilll need to account for their power requirements.

-The LPS4 is currently only pulling charging duty for my LH Labs 20G so I am going to build a separate rail in the sigma11 case for that and one other TBD item.

-The T2 is rated at 200w power consumption. I’m having a DIY T2 built and I believe the power consumption of those is 180-200w

Here’s a pic of the LPS4:
https://goo.gl/images/QcdxFR
 
Oct 2, 2018 at 5:06 PM Post #219 of 562
Not yet. I need to switch out the wall outlet to a receptacle that can accept a 20A plug. Waiting until my wife is available to read the multimeter as I flip circuit breakers to determine which one owns that outlet. I’ll report back once she’s been conscripted.

I still have the Adams and originally this was supposed to be for that system and I was going to make a second one with a 500va isolation transformer (IT) for my headphone system. Well as it turns out the topaz transformer I had was a 125va not a 500 va so it’s useless to use with any more than 1 or 2 items. I’m going to use some more of the 10 awg and put plug ends on the 125va one and see if I can figure out a use for it while I seek out a good deal on a 500 or 750va IT.

Here’s the shell for the next one:
I just did about 15 minutes of listening on it and I’d say it’s a subtle but noticeable difference across the board. About a 5% improvement 95% of the time and the other 5% I need to do more in-depth listening to evaluate. Not bad considering the money spent and I’m well in the realm of diminishing returns.
 
Oct 15, 2018 at 8:33 PM Post #220 of 562
The 125’s have begun asexually replicating:

3B44ADB8-F77E-4956-BF80-94E524DBF92A.jpeg

You can run a 125va in the middle of an IEC and have power cables that really do reduce noise through established methods as opposed to aftermarket manufacturers that claim a noise reduction through proprietary or “unnamed” methods. I’m not saying that those claims are wrong but at least I can put my finger on what power cables made using these actually do to reduce noise.
 
Oct 15, 2018 at 8:43 PM Post #221 of 562
The 125’s have begun asexually replicating:



You can run a 125va in the middle of an IEC and have power cables that really do reduce noise through established methods as opposed to aftermarket manufacturers that claim a noise reduction through proprietary or “unnamed” methods. I’m not saying that those claims are wrong but at least I can put my finger on what power cables made using these actually do to reduce noise.

I'm a fan of 14awg silver plated teflon dielectric quadropole with a 12awg counter spiraled ground around the star quad. High conductivity, low inductance, Science! And not expensive if you want to make it yourself.
 
Oct 15, 2018 at 10:18 PM Post #222 of 562
I'm a fan of 14awg silver plated teflon dielectric quadropole with a 12awg counter spiraled ground around the star quad. High conductivity, low inductance, Science! And not expensive if you want to make it yourself.

I’ll give it a look online. I’ve had some success with my 8 and 10awg mil spec silver plated Teflon so I may continue that route though since I have about 64-68’ of it that need to be used :)
 
Nov 25, 2018 at 2:06 AM Post #223 of 562
Anyone seen a -32 series with internals like this?

B3F9964D-BCDD-4B96-B2CD-E6AD2BA52C6E.jpeg 98F748F0-313E-4865-BDA6-A6ABE2967837.jpeg 5AF6F09E-A405-4628-B325-4C19328871DB.jpeg

My 2.4kva unit is an MGE -32 series and it doesn’t have the large white sheet metal piece.
 
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Nov 28, 2018 at 11:28 PM Post #224 of 562
Not yet. I need to switch out the wall outlet to a receptacle that can accept a 20A plug. Waiting until my wife is available to read the multimeter as I flip circuit breakers to determine which one owns that outlet. I’ll report back once she’s been conscripted.

I still have the Adams and originally this was supposed to be for that system and I was going to make a second one with a 500va isolation transformer (IT) for my headphone system. Well as it turns out the topaz transformer I had was a 125va not a 500 va so it’s useless to use with any more than 1 or 2 items. I’m going to use some more of the 10 awg and put plug ends on the 125va one and see if I can figure out a use for it while I seek out a good deal on a 500 or 750va IT.

Here’s the shell for the next one:

Well it’s finally done (except waiting on fuse to come in). I managed to squeeze a 1kva unit in there but cutting the feet a little narrower. As you can see thought the fit is still snug in the length direction as well.

A53D4F16-D5C8-4CD1-A8B8-89E0468BB993.jpeg 36754526-42F6-4759-86EC-64F29A8968F8.jpeg
 
Nov 28, 2018 at 11:55 PM Post #225 of 562
Well it’s finally done (except waiting on fuse to come in). I managed to squeeze a 1kva unit in there but cutting the feet a little narrower. As you can see thought the fit is still snug in the length direction as well.


Very nice. Did you ever happen to find any information on the white metal sheet from the other one?
 

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