AudioCircle

Audio/Video Gear and Systems => Power Conditioning => Topic started by: PS on 18 Oct 2019, 06:53 pm

Title: Supra LoRAD power block and power cords
Post by: PS on 18 Oct 2019, 06:53 pm
Is anyone using these products?  If so, kindly share your thoughts. Thanks.
Title: Re: Supra LoRAD power block and power cords
Post by: SteveFord on 18 Oct 2019, 09:26 pm
I have their power cords, no complaints and great service.
I am not the power cord guru but if I was looking for more power cords I'd go with them again.
Title: Re: Supra LoRAD power block and power cords
Post by: PS on 17 Nov 2019, 08:55 pm
I've since started using the Supra LoRAD power distribution block combined with their power cords.   I assembled the cords myself which was a significant savings.
One power cord goes from the distribution block to my dedicated power line, the others go to my CDP, DAC, and Wells Audio Integrated Amplifier.

I replaced a bare-bones Wiremold power strip, and assorted power cables, and the improvements have been immediate and dramatic.  Streaming digital either through Spotify, or better yet, Qobuz, sounds sooo much better.  I haven't paid any attention to break-in time on the Supra items- all I can say that the investment was more than worthwhile. No affiliation, but great return on investment.  :)

Title: Re: Supra LoRAD power block and power cords
Post by: maty on 17 Nov 2019, 09:31 pm
http://www.jenving.com/products/view/mains-block-md03-eu-switch-3024000501

Quote
Supra NIF Transient Filter

All models are equipped with Supra NIF (Non-Intrusive Filtering), an efficient high frequency (RFI) transient filter. It is designed and configured to efficiently suppress RFI interference, but not to dampen quick recharge demands from the connected devices power supplies. Supra NIF is developed by Ben Duncan Research in England...

That is the key. You can buy a good and cheap aluminum powerstrip and add a cheap Schaffner RF/EMI FN9244B filter inlet like me or...

B = medical
Title: Re: Supra LoRAD power block and power cords
Post by: PS on 17 Nov 2019, 10:24 pm
http://www.jenving.com/products/view/mains-block-md03-eu-switch-3024000501

That is the key. You can buy a good and cheap aluminum powerstrip and add a cheap Schaffner RF/EMI FN9244B filter inlet like me or...

B = medical

Hi Maty,
I don't quite understand your post, can you kindly explain?  In terms of cost, the Supra Power Block was on sale at a very attractive price and I purchased the Supra cord in bulk along with their connectors.  My total investment was modest.  BTW, I'm in the U.S.A.
Title: Re: Supra LoRAD power block and power cords
Post by: bacobits1 on 17 Nov 2019, 10:31 pm
https://www.madisoundspeakerstore.com/power-cables/supra-mains-power-distribution-block-md06-us/

Looking at it. Quite reasonable $$
Title: Re: Supra LoRAD power block and power cords
Post by: PS on 17 Nov 2019, 10:37 pm
https://www.madisoundspeakerstore.com/power-cables/supra-mains-power-distribution-block-md06-us/

Looking at it. Quite reasonable $$

I don't know how many more they have at this price. I purchased two in case I run my mono tube amps.  :)  In contrast to a few tweaks I've tried that made very little or no improvement, the Supra items are well-worth the cost, IMO, and ymmv, of course.
Title: Re: Supra LoRAD power block and power cords
Post by: maty on 18 Nov 2019, 06:47 am
Good price.

The problem is we do not know the attenuation of the RF / EMI filter.

Schaffner FN9244B

B = medical -> less leakage current.

https://www.audiocircle.com/index.php?topic=153802.msg1644542#msg1644542

(http://maty.galeon.com/WP-imagenes/hard/IEC-inlet-filter-Schaffner-FN_9244-specs.png)

(http://maty.galeon.com/WP-imagenes/hard/IEC-inlet-filter-Schaffner-FN_9244-typical-filter-attenuation.png)

It is important to choose the one that is capable of supporting a little more than the maximum current that our audio system would need to have a greater interference attenuation.
Title: Re: Supra LoRAD power block and power cords
Post by: mick wolfe on 18 Nov 2019, 03:57 pm
Hi Maty,
I don't quite understand your post, can you kindly explain?  In terms of cost, the Supra Power Block was on sale at a very attractive price and I purchased the Supra cord in bulk along with their connectors.  My total investment was modest.  BTW, I'm in the U.S.A.

Totally agree. I recommend the Supra Power Block to all my budget minded audio friends. Plus use one myself in a second system. At the price Madisound sells them, it's a no-brainer.
Title: Re: Supra LoRAD power block and power cords
Post by: maty on 18 Nov 2019, 04:25 pm
As I usually comment, the mains is increasingly dirty because of so much gadget or machine that it fails to comply with regulations.

Audio devices tend to have insufficient attenuation for current reality. Some try to solve the problem by spending a lot of in audiophile cables that add a small attenuation instead of resorting to much cheaper professional solutions with greater values and attenuation graphs.

I am glad you improved your hearing experience by spending few money.
Title: Re: Supra LoRAD power block and power cords
Post by: Speedskater on 18 Nov 2019, 10:42 pm
That Schaffner spec sheet is the way all power conditioner products spec sheets should look.
Title: Re: Supra LoRAD power block and power cords
Post by: newworld on 20 Nov 2019, 12:15 am
Supra is one of the very few specialized cables I would buy. Good stuff!
Title: Re: Supra LoRAD power block and power cords
Post by: bacobits1 on 22 Nov 2019, 10:48 pm
I did get one of these LoRad power strips in on Wed.
Along with a 6 ft power cable. It is indeed very good!
I will let it break in for a week and comment more later.
It is perfect for my KISS philosophy.
Title: Re: Supra LoRAD power block and power cords
Post by: sunnydaze on 23 Nov 2019, 12:28 am
I did get one of these LoRad power strips in on Wed.
Along with a 6 ft power cable. It is indeed very good!
I will let it break in for a week and comment more later.
It is perfect for my KISS philosophy.

The drop down menu on the Madisound site is a bit confusing....

The 6' cable for $67, does it come assembled or is it just the parts that I need to assemble?    :scratch:
Title: Re: Supra LoRAD power block and power cords
Post by: bacobits1 on 23 Nov 2019, 02:08 am
You have to assemble the cable.
To be specific both plugs are included.
Title: Re: Supra LoRAD power block and power cords
Post by: PS on 23 Nov 2019, 03:08 am
You have to assemble the cable.
To be specific both plugs are included.

I found this YouTube video quite helpful when I assembled the power cords.  The tiny wire is important and fragile.  Good luck @sunnydaze

"Supra Cables LoRad 2.5MKII, How to wire correctly and safely"

https://www.youtube.com/watch?v=M-Hsvf0Tpz4
Title: Re: Supra LoRAD power block and power cords
Post by: bacobits1 on 23 Nov 2019, 11:44 am
Actually that wire is a bear to work with, as in stiff.
I was familiar with the small drain wire from an XLO PC I have.
The drain is connected only at the wall end plug.That's' the way I did it here.
In the comments on the video it states it's wrong. They should have supplied a short instruction sheet.

The IEC connection to the bar fits very well and all receptacles are tight fitting. A good thing.
Title: Re: Supra LoRAD power block and power cords
Post by: sunnydaze on 23 Nov 2019, 02:47 pm
Not true.

If you click on "view reply from divineaudiouk" it says this:

This is incorrect, the drain wire needs to be terminated at both ends.
If you leave it loose it is potentially lethal and if you cut it off it is bad practise.
We have confirmed with the factory that this is the correct method and this is also the way Supra terminates the cable themselves.


I would trust info coming direct from Supra and its factory over all else.
Title: Re: Supra LoRAD power block and power cords
Post by: bacobits1 on 23 Nov 2019, 04:32 pm
AND......that's why you should buy assembled. :o
Title: Re: Supra LoRAD power block and power cords
Post by: sunnydaze on 23 Nov 2019, 07:33 pm
AND......that's why you should buy assembled. :o

 You forgot to add this:      :duh:

 :rotflmao:
Title: Re: Supra LoRAD power block and power cords
Post by: bacobits1 on 23 Nov 2019, 08:50 pm
Hey now, I've been doing this for over 40+ years I'm an "EXPERT"!!!!!!
I've got Furutech ends ordered anyway. The plugs cost more than the whole thing. :scratch:
I'm an Audiophile don't forget it.
Title: Re: Supra LoRAD power block and power cords
Post by: PS on 23 Nov 2019, 11:38 pm
I found it rewarding financially and emotionally to be able to assemble the power cords myself.  I will say that I felt a bit confused at first, but one email exchange with Madisound helped clarify the process greatly- it was they who pointed me to the YouTube video.  From there, all it took was some patience, rudimentary tools, including a continuity tester, and I was good.  I did a total of four power cords and may do a couple more.

It's a hobby and I enjoy doing what I personally can.  :)

Title: Re: Supra LoRAD power block and power cords
Post by: Speedskater on 24 Nov 2019, 12:27 am
Is the drain wire part of the shield or is it the Safety Ground/Protective Earth conductor?
If it's the SG/PE conductor, is it as large as the Hot & Neutral conductors?
Title: Re: Supra LoRAD power block and power cords
Post by: bacobits1 on 24 Nov 2019, 12:48 am
The 3 wires are 16 ga the drain wire is probably 30ga is in contact with the mylar/foil wrap.
So it is not a part of the SG conductor till (if) you make it that way. As I mentioned my old XLO has it and did not have it connected at both ends. Just dumb if it's not connected both ends saying its a safety factor. May affect the EMI/RFI shielding. They should have supplied written instructions.

Title: Re: Supra LoRAD power block and power cords
Post by: PS on 24 Nov 2019, 01:12 am
Some of you guys are making this much more difficult than necessary.  Either buy the cables ready-made or watch the video and DIY. 

It's not, as the cliche' goes, brain surgery.

 :D
Title: Re: Supra LoRAD power block and power cords
Post by: Speedskater on 24 Nov 2019, 01:35 pm
So if the drain wire is:
a] connected at both ends it becomes part of the Safety Ground/Protective Earth conductor and carries some of the leakage currents and noise.
b] connected only at the wall outlet (with many homes not have metal conduit/tubing) it's just a stub not doing much.
c] connected only at the component chassis. it acts as an extension of the chassis shield.
Title: Re: Supra LoRAD power block and power cords
Post by: Rushboy on 26 Dec 2022, 08:53 am
Hello,
are there any other opinions on the Supra power strip?
I had the Sirius from Isotek and the sound became annoyingly sterile with it.
That's why I have reservations about a power strip with a filter.
Title: Re: Supra LoRAD power block and power cords
Post by: bacobits1 on 26 Dec 2022, 02:22 pm
"annoyingly sterile" is a good way of putting it. I sold both a little while after I got them. At the time I was fighting a lot of forwardness in my Usher CP6371. I treated the whole room after. Different systems have different effects.
Title: Re: Supra LoRAD power block and power cords
Post by: Rushboy on 26 Dec 2022, 05:53 pm
You have Supra and Isotek too?
Title: Re: Supra LoRAD power block and power cords
Post by: bacobits1 on 26 Dec 2022, 06:04 pm
I stated that it was sold. All I use here is a Brickwall Line filter for a long time. All Maestro outlets.
I tried this stuff because it was reasonable $$ Isotek is supposed to be good, but all system dependent of course.
Title: Re: Supra LoRAD power block and power cords
Post by: Rushboy on 26 Dec 2022, 06:10 pm
I think the Isotek stuff is really bad.
If Supra is no good either, I can leave it.
Title: Re: Supra LoRAD power block and power cords
Post by: viggen on 26 Dec 2022, 06:28 pm
https://www.youtube.com/watch?v=DGRwFFrb7aM&t=7s
Title: Re: Supra LoRAD power block and power cords
Post by: ChuckH on 12 Dec 2023, 05:05 am
I live in California and saved money on the LoRad power cables by buying them from futureshop in the UK.