DC Blocking / Mains Filtering and all that "stuff" . . .

[Gazjam]

How's Toppsy getting on with the amp Chris?
Still doing the business fir him?

[Stratmangler]

He's getting along fine with it, Gaz

[The Black Adder]

The Mark grant/Tube Distinctions DC blocker is really great. You can find more info on Mark Grants website.

Designed by Anthony and assembled by Mark. It's a fab thing.

Marco uses one in his system.

Sent from my 9001X using Tapatalk

[hifinutt]

josie . i like them too and use one to good effect
i think its a mains filter though , not a dc blocker . someone correct me if i am wrong

https://www.markgrantcables.co.uk/uk...-power-filter/

[doodoos]

josie . i like them too and use one to good effect
i think its a mains filter though , not a dc blocker . someone correct me if i am wrong

https://www.markgrantcables.co.uk/uk...-power-filter/

You are correct - it’s not a dc blocker but very useful nevertheless.

[The Black Adder]

Ah. Yes... Sorry.

Well, as you both say, it's an excellent bit of kit.

Sent from my 9001X using Tapatalk

[Discopants]

Great thread lots of useful info.

Whilst your neighbours may cause some electrical noise that can impact your house and system, most houses have stuff far closer to home. Cheap smps that power our phone , ipad chargers and other cheap consumer electricals can all harm. Dimmable LEDs and variable DC pumps are naughty too. I have many such devices in my home and many on the same ring as my system.

3 years ago we had a very modest system based on a cambridge audio amp, a yamaha CD player and some well regarded mordant short bookshelves. I wanted to get something with better sound quality and bought KEF LS 50 active system, took it home plugged it in and was massively disappointed, sure it was giving me some additional bass but still the music was just as flat, i had a 30 day home trial so back it went.

I then upped my budget considerably thinking I just need to reach further to get good sound, so bought an open box set of proac tablette 10 Se and a Lyngdorf TDAI3400. This did give me a noticeable jump in performance , especially when I the sub.

Since then I’ve put loads of effort into getting clean power and controlling vibrations in the system and now my systems on a totally different level for SQ.

I use a DIY DC blocker power cable that mimics the syncro power cable mentioned above, this feeds an isotek sigmas gen 2.

There are 3 toroidal transformers in my system all small and I had no hum that I could hear but the DC blocker definitely improved the musicality of the system.

If you want to control chassis vibrations there is an excellent product you can get from Japan via ebay called fo.q damping tape.

Ta102 and Ta32 are 1mm thick and 0.3mm thick respectively , they convert vibration to infra red heat and also have antistatic property , I’m convinced its very similar in make up to the NCF technology that furutech use in their plugs and sockets. The thin stuff goes around cables very easily. The thicker stuff very good on chassis especially around power sockets and inlets.

I think you can get issues with power conditioning if you use cheaper filters but if done correctly it can be transformational in a noisy home. The Puritan filters get great reviews and I would be looking to trial one of those if I wasn’t sorted, I think they punch above their price point from reading reviews. They have built in DC offset filtering in their power conditioners.


Sent from my iPad using Tapatalk

[Mr.Ian]

Best improvement i got came from adding extra earth bonding strips across the water pipes and cleaning tightening the eathing lead near the meter
. Very obvious drop in background noise and it was easy low cost to do. Never heard much if a difference with filters other than a belkin pf60, i think, that cut the power on an almost daily basis