# Power blocks

**URL:** <https://community.naimaudio.com/t/power-blocks/3652>\
**Category:** Hi-Fi Corner\
**Created:** [August 12, 2019, 4:10pm UTC](https://community.naimaudio.com/t/power-blocks/3652 "2019-08-12T16:10:59Z")\
**Posts on this page:** 20\
**Page:** 1

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**Author:** ![pumpexch](https://community.naimaudio.com/letter_avatar_proxy/v4/letter/p/4bbf92/32.png) [@pumpexch](https://community.naimaudio.com/u/pumpexch)\
**Post date:** [August 12, 2019, 4:10pm UTC](https://community.naimaudio.com/t/power-blocks/3652/1 "2019-08-12T16:10:59Z")

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I have a 500 system using a mid range power block. I have seen some esoteric power blocks - one was a Vertex Hirex Taga. In view of the fact that I have 2 x 500 DR power supplies to the ND555 and similar to the NAP 500 DR and the 552 DR will the more esoteric and expensive power blocks made any difference. I have seen a Vertex second hand for just over £1,000

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**Author:** ![robert\_h](https://community.naimaudio.com/user_avatar/community.naimaudio.com/robert_h/32/90_2.png) [@robert\_h](https://community.naimaudio.com/u/robert_h)\
**Post date:** [August 12, 2019, 4:13pm UTC](https://community.naimaudio.com/t/power-blocks/3652/2 "2019-08-12T16:13:43Z")

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There’s a healthy discussion on power blocks already, suggest you take a read [https://community.naimaudio.com/t/suggestions-for-powerblocks/3270](https://community.naimaudio.com/t/suggestions-for-powerblocks/3270)

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**Author:** ![MDS](https://community.naimaudio.com/user_avatar/community.naimaudio.com/mds/32/117_2.png) [@MDS](https://community.naimaudio.com/u/MDS)\
**Post date:** [August 12, 2019, 5:15pm UTC](https://community.naimaudio.com/t/power-blocks/3652/3 "2019-08-12T17:15:11Z")

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I can recommend one of these:

 ![image](https://d2ikyu8xyuibjx.cloudfront.net/original/3X/c/3/c3f61233fa11c29c6e797ceacaed4e9c89a37346.jpeg)

I know of two other forumites with 500 systems who have also been sufficiently impressed to get one.

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**Author:** ![frenchrooster](https://community.naimaudio.com/user_avatar/community.naimaudio.com/frenchrooster/32/492688_2.png) [@frenchrooster](https://community.naimaudio.com/u/frenchrooster)\
**Post date:** [August 12, 2019, 6:56pm UTC](https://community.naimaudio.com/t/power-blocks/3652/4 "2019-08-12T18:56:46Z")

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the most expensive powerblocks with 500 series used on the forum is the Anzus one. @BertBird use one. Perhaps also @Bart.  
Some use Musicworks.  
Some the Wireworld matrix 2 with powerline or also the Powerigel( musicline).  
I bought the Eros titan. Great improvement. My 555dr is absolutely silent now.

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**Author:** ![Bart](https://community.naimaudio.com/user_avatar/community.naimaudio.com/bart/32/49997_2.png) [@Bart](https://community.naimaudio.com/u/Bart)\
**Post date:** [August 12, 2019, 7:30pm UTC](https://community.naimaudio.com/t/power-blocks/3652/5 "2019-08-12T19:30:43Z")

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The Ansuz prices vary widely. I use their entry-level block, A2 Mainz8. It’s not exotically priced, although their higher level blocks definitely are!

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**Author:** ![frenchrooster](https://community.naimaudio.com/user_avatar/community.naimaudio.com/frenchrooster/32/492688_2.png) [@frenchrooster](https://community.naimaudio.com/u/frenchrooster)\
**Post date:** [August 12, 2019, 7:43pm UTC](https://community.naimaudio.com/t/power-blocks/3652/6 "2019-08-12T19:43:50Z")

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already 4500 dollars. But not 20k as the top block however.

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**Author:** ![Mike\_S](https://community.naimaudio.com/user_avatar/community.naimaudio.com/mike_s/32/290893_2.png) [@Mike\_S](https://community.naimaudio.com/u/Mike_S)\
**Post date:** [August 21, 2019, 6:50am UTC](https://community.naimaudio.com/t/power-blocks/3652/7 "2019-08-21T06:50:11Z")

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What happened to the other power block thread? I’m trying to find comments about the Iso-teks.

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**Author:** ![frenchrooster](https://community.naimaudio.com/user_avatar/community.naimaudio.com/frenchrooster/32/492688_2.png) [@frenchrooster](https://community.naimaudio.com/u/frenchrooster)\
**Post date:** [August 21, 2019, 11:49am UTC](https://community.naimaudio.com/t/power-blocks/3652/8 "2019-08-21T11:49:58Z")

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i seems to have disappeared. You can open a new thread on it?

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**Author:** ![Mike-B](https://community.naimaudio.com/user_avatar/community.naimaudio.com/mike-b/32/295344_2.png) [@Mike-B](https://community.naimaudio.com/u/Mike-B)\
**Post date:** [August 21, 2019, 12:49pm UTC](https://community.naimaudio.com/t/power-blocks/3652/9 "2019-08-21T12:49:26Z")

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> [@Mike\_S](#):
>
> What happened to the other power block thread?

Someone started posting inappropriate & potentially dangerous stuff & it got removed.  
I don’t understand why the whole thread was removed as it did contain some useful info’ on experiences with some popular power blocks on the market.

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**Author:** ![pumpexch](https://community.naimaudio.com/letter_avatar_proxy/v4/letter/p/4bbf92/32.png) [@pumpexch](https://community.naimaudio.com/u/pumpexch)\
**Post date:** [August 21, 2019, 1:11pm UTC](https://community.naimaudio.com/t/power-blocks/3652/10 "2019-08-21T13:11:14Z")

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Do you have to buy a power lead as well as the block. If yes, I have a spare Naim power line lead. Will this work?

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**Author:** ![Steve](https://community.naimaudio.com/user_avatar/community.naimaudio.com/steve/32/832_2.png) [@Steve](https://community.naimaudio.com/u/Steve)\
**Post date:** [August 21, 2019, 1:33pm UTC](https://community.naimaudio.com/t/power-blocks/3652/11 "2019-08-21T13:33:14Z")

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I use a Naim PowerLine into a Wireworld Matrix block. Works fine but not sure if there are better options. I like to keep everything within the Naim ecosystem where possible.

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**Author:** ![Geko](https://community.naimaudio.com/user_avatar/community.naimaudio.com/geko/32/128275_2.png) [@Geko](https://community.naimaudio.com/u/Geko)\
**Post date:** [August 21, 2019, 3:08pm UTC](https://community.naimaudio.com/t/power-blocks/3652/12 "2019-08-21T15:08:58Z")

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The last thread prompted me to do a little experiment. I currently run a a dedicated supply to three MK double un-switched sockets on 6m2 mains cable. Some were reporting improvements by just running the Amp directly from one socket then a powerline from the other socket into a power block. I resurrected an old Wireworld matrix block and did exactly that but found it to be inferior to the direct 3 socket connections. SQ was thinner and harsher using the block. The MK sockets produce a sumptuous, richer and more natural sound to my ears.

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**Author:** ![Steve](https://community.naimaudio.com/user_avatar/community.naimaudio.com/steve/32/832_2.png) [@Steve](https://community.naimaudio.com/u/Steve)\
**Post date:** [August 21, 2019, 3:11pm UTC](https://community.naimaudio.com/t/power-blocks/3652/13 "2019-08-21T15:11:55Z")

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Interesting. I don’t have a dedicated mains yet having just moved into a new house. I plug the power amp into the wall and the pre/cd into the block.

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**Author:** ![Mike-B](https://community.naimaudio.com/user_avatar/community.naimaudio.com/mike-b/32/295344_2.png) [@Mike-B](https://community.naimaudio.com/u/Mike-B)\
**Post date:** [August 21, 2019, 3:15pm UTC](https://community.naimaudio.com/t/power-blocks/3652/14 "2019-08-21T15:15:01Z")

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> [@Geko](#):
>
> MK sockets produce a sumptuous, richer and more natural sound _ **to my ears.** _

… … … & mine, thats why after a lot of experimenting, buying & borrowing ready made blocks I made my own. That was 5 years ago, never been tempted to even think about changing.

 ![Power%20Cable%20%20%20Board](https://d2ikyu8xyuibjx.cloudfront.net/original/2X/c/c0298bc7386c8354649e64f8b802b3274ae4aac2.jpeg)

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<div class="post-metadata">

**Author:** ![Mike\_S](https://community.naimaudio.com/user_avatar/community.naimaudio.com/mike_s/32/290893_2.png) [@Mike\_S](https://community.naimaudio.com/u/Mike_S)\
**Post date:** [August 22, 2019, 7:00am UTC](https://community.naimaudio.com/t/power-blocks/3652/15 "2019-08-22T07:00:38Z")

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So, I’m running an Iso-Tek Polaris on loan and it’s cleaned things up nicely, which can be summarized as bringing everything into focus. However, those in the know recommended the Sirius power block as a minimum in my system, with the Aquarius recommended as preferable. Has anyone used either of these.

BTW, have learned quite a bit about differences between UK and NZ power mains and how the likes of Iso-Tek have advanced their technology to bring out the best in our toys.

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**Author:** ![Naim\_The\_Dragon](https://community.naimaudio.com/user_avatar/community.naimaudio.com/naim_the_dragon/32/12981_2.png) [@Naim\_The\_Dragon](https://community.naimaudio.com/u/Naim_The_Dragon)\
**Post date:** [August 24, 2019, 1:01pm UTC](https://community.naimaudio.com/t/power-blocks/3652/16 "2019-08-24T13:01:26Z")

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Do you have access to Isol-8 in NZ? They are also highly regarded, and it could be worthwhile to demo them too before spending big bucks on a power block.

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**Author:** ![Hollow](https://community.naimaudio.com/user_avatar/community.naimaudio.com/hollow/32/29892_2.png) [@Hollow](https://community.naimaudio.com/u/Hollow)\
**Post date:** [August 24, 2019, 2:09pm UTC](https://community.naimaudio.com/t/power-blocks/3652/17 "2019-08-24T14:09:01Z")

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Mike what’s the supply lead in your photo?

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**Author:** ![Mike-B](https://community.naimaudio.com/user_avatar/community.naimaudio.com/mike-b/32/295344_2.png) [@Mike-B](https://community.naimaudio.com/u/Mike-B)\
**Post date:** [August 24, 2019, 2:58pm UTC](https://community.naimaudio.com/t/power-blocks/3652/18 "2019-08-24T14:58:55Z")

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> [@Hollow](#):
>
> Mike what’s the supply lead in your photo?

LAPP Olflex Classic 100 CY  
3 core 2.5mm/2 multi-stranded OFC shielded cable  
(beware of impostors & look-a-likes)

Its a chunky 11.8mm OD & rated at 26 amps.  
The screen is connected to the earth (ground) terminal at the power input end (13A plug) only & left floating at the power board end.  
Because of the cables size I use a MS HD Power 13A plug  
The ferrite block is not yer usual www.store item, its a Fair-Rite 75 mix that is specific for low frequency operation between 150kHz & 5MHz. I now have it located inside one of the J-Boxes on the power board

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**Author:** ![Hollow](https://community.naimaudio.com/user_avatar/community.naimaudio.com/hollow/32/29892_2.png) [@Hollow](https://community.naimaudio.com/u/Hollow)\
**Post date:** [August 24, 2019, 3:57pm UTC](https://community.naimaudio.com/t/power-blocks/3652/19 "2019-08-24T15:57:22Z")

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Thanks Mike, and the internal wiring? I’m planning on making up something similar

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<div class="post-metadata">

**Author:** ![Mike-B](https://community.naimaudio.com/user_avatar/community.naimaudio.com/mike-b/32/295344_2.png) [@Mike-B](https://community.naimaudio.com/u/Mike-B)\
**Post date:** [August 24, 2019, 4:09pm UTC](https://community.naimaudio.com/t/power-blocks/3652/20 "2019-08-24T16:09:54Z")

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Most of the internal gubbins in the J-Box’s is a state secret.  
The wiring to the switched double is vin-ordinaire 1.5mm, it was for a TT & phono preamp but is no longer used  
The wiring to the unswitched doubles is 2.5mm with PTFE insulation, its not available on the market & is a “left over” from my pre-retirement days. The wiring config to these is radial.

 ![Power%20Socket%20Radial%20Connections](https://d2ikyu8xyuibjx.cloudfront.net/original/3X/c/f/cf150a01bb0c133e3453cccafbcc4baf643fb399.jpeg)

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