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Thread: Balanced mains transformers, surge protections?

  1. #21
    Join Date: Mar 2009

    Location: Sheffield, UK

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    I'm Dave.

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    Quote Originally Posted by Ali Tait View Post
    No, you stated in post 3 what you already have, I then suggested that Steve could plug his Belkin into the Airlink trannie, which you repeated in a later post.
    I too often wonder how many times things need repeating before they sink in.
    I know it's already been stated and I had already thought of that option before starting the thread but I've seen it mentioned here and elsewhere that if you're using balanced mains then there's no need for additional filtration. So I was kind of hoping I wouldn't need the PF30's any more and could therefore sell them. I have 4 of them so I could get more than enough money back to buy something else. However, looking at the Belkin Surgemaster jobbie in more detail I notice that it does some EMI/RFI noise filtration anyway, so in the end I'd be swapping one filter for another which is a bit pointless.

    My other issue with the PF30's is that I hate the sockets on them, they're shite. So I'd much rather use a quality mains block like those that Mark grant sells but then I'd be back to square one without the surge protection.

    The other option I've thought of is to try the PF30's as suggested and if they don't seem to have a negative effect I could replace the sockets on them with better ones.

    So it's not that I'm not listening, I am and I appreciate the advice, I just decided not to go into great detail about why I'd asked about the Surgemaster. Although I had mentioned in my opening post that I wanted to replace the PF30's with balanced mains.
    Source: Apple TV 4K - DAC: Beresford Bushmaster Mk II - Preamp: CI AudioPLC-1 Mk II - Power Amps: Musical Fidelity 550K mono blocks - Speakers: Wharfedale Opus 3 - Cables: Mark Grant etc - Misc: Belkin PF30 mains filters.

  2. #22
    Join Date: Jul 2010

    Location: North Cambs UK, Earth, Sol, Orion - Cygnus arm of galaxy

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    Balanced mains takes care of any common mode interference or distortion, it doesn't take care of differential mode interference or distortion. The Belkins will help with that
    Bests, Mark



    "We must believe in free will. We have no choice" Isaac Bashevis Singer

  3. #23
    Join Date: Aug 2010

    Location: Montseny National Park, Catalonia

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    I'm John.

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    I dispensed with all filters when I moved to dedicated mains.
    I tend to agree with you, the Belkin strip units I’ve seen were crap both in construction and performance.
    I have a distribution block which I built and that may be the way for you as well.
    Single spur balanced Mains. Self built music server with 3 seperate linear PSU, Intel i5, 16 GB RAM no hard drive (various Linux OS). Benchmark Dac2 HGC, single ended XLR interconnects/Belkin cable. Exposure 21RC Pre, Super 18 Power (recap & modified). Modded World Audio HD83 HP amp. Hand built Monitors with external crossovers , Volt 250 bass & ABR, Scanspeak 13M8621 Mid & Scanspeak D2905/9300 Hi. HD595 & Beyer 880 (600 ohm) cans.

    The whole problem with the world is that fools and fanatics are always so certain of themselves, and wiser people so full of doubts.
    -Bertrand Russel

    John.

  4. #24
    Join Date: Mar 2008

    Location: Galashiels

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    I'm inthescottishmafia.

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    Quote Originally Posted by HighFidelityGuy View Post
    I know it's already been stated and I had already thought of that option before starting the thread but I've seen it mentioned here and elsewhere that if you're using balanced mains then there's no need for additional filtration. So I was kind of hoping I wouldn't need the PF30's any more and could therefore sell them. I have 4 of them so I could get more than enough money back to buy something else. However, looking at the Belkin Surgemaster jobbie in more detail I notice that it does some EMI/RFI noise filtration anyway, so in the end I'd be swapping one filter for another which is a bit pointless.

    My other issue with the PF30's is that I hate the sockets on them, they're shite. So I'd much rather use a quality mains block like those that Mark grant sells but then I'd be back to square one without the surge protection.

    The other option I've thought of is to try the PF30's as suggested and if they don't seem to have a negative effect I could replace the sockets on them with better ones.

    So it's not that I'm not listening, I am and I appreciate the advice, I just decided not to go into great detail about why I'd asked about the Surgemaster. Although I had mentioned in my opening post that I wanted to replace the PF30's with balanced mains.
    You could rewire the Belkins with a good quality socket on end of a short lead, one for each socket on the back.

  5. #25
    Join Date: Jul 2010

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    Quote Originally Posted by Welder View Post
    I dispensed with all filters when I moved to dedicated mains.
    I guess you could do, but i decided i wanted to give some isolation between SMPS & linear PSUs so that they didn't interfere with each other. With the seperately filtered outlets of the Belkins this can easily be realised
    Bests, Mark



    "We must believe in free will. We have no choice" Isaac Bashevis Singer

  6. #26
    Join Date: Mar 2009

    Location: Sheffield, UK

    Posts: 1,307
    I'm Dave.

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    I can see that this is a subjective area where there are people on both sides of the fence when it comes to filtration. That's fine and I know that mains filtering can be quite system dependant. So, I guess the way forward is for me to try both ways. I have a Tacima filtered block to try as well, so I'll try both filters and no filter and stick with the one that sounds best. If that happens to be without a filter and I don't have surge protection then I'll get one of the little Belkin surge protectors and maybe an APC one that I've seen and try them. If they knacker the sound I'll decide what to do from there. At least then I'll have covered all the bases.
    Source: Apple TV 4K - DAC: Beresford Bushmaster Mk II - Preamp: CI AudioPLC-1 Mk II - Power Amps: Musical Fidelity 550K mono blocks - Speakers: Wharfedale Opus 3 - Cables: Mark Grant etc - Misc: Belkin PF30 mains filters.

  7. #27
    Join Date: Mar 2009

    Location: Sheffield, UK

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    I'm Dave.

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    Quote Originally Posted by Ali Tait View Post
    You could rewire the Belkins with a good quality socket on end of a short lead, one for each socket on the back.
    That's the sort of thing I was thinking.

    Quote Originally Posted by Reid Malenfant View Post
    I guess you could do, but i decided i wanted to give some isolation between SMPS & linear PSUs so that they didn't interfere with each other. With the seperately filtered outlets of the Belkins this can easily be realised
    Balls! I'd forgotten about that and that was one of the main reasons I got so many PF30's. So I might be sticking with them, or at least some of them after all.
    Source: Apple TV 4K - DAC: Beresford Bushmaster Mk II - Preamp: CI AudioPLC-1 Mk II - Power Amps: Musical Fidelity 550K mono blocks - Speakers: Wharfedale Opus 3 - Cables: Mark Grant etc - Misc: Belkin PF30 mains filters.

  8. #28
    Join Date: Mar 2008

    Location: Galashiels

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    I'm inthescottishmafia.

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    Quote Originally Posted by Reid Malenfant View Post
    Lets not clutch at straws here Ali Yep you are dead right, i stated in post 3 that i was already running a pair of Belkins connected to the balanced output of a P600

    Now apart from the fact that fact that the P600 is a regenerator it's output is still balanced & the Belkins work fine, even if they show things are connected incorrectly (which they aren't - it's just that they get confused with balanced mains)

    By the way, i'm glad i'm not the only one that wonders
    Who's clutching at straws?

    How much of an improvement did you find the regenerator?

  9. #29
    Join Date: Aug 2010

    Location: Montseny National Park, Catalonia

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    I'm John.

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    Well Dave, whichever way you go I would be very interested in hearing how you get on with the 5 kVA unit if you get it

    With regard to SM PSU the answer of course is not to have any on the dedicated spur
    Single spur balanced Mains. Self built music server with 3 seperate linear PSU, Intel i5, 16 GB RAM no hard drive (various Linux OS). Benchmark Dac2 HGC, single ended XLR interconnects/Belkin cable. Exposure 21RC Pre, Super 18 Power (recap & modified). Modded World Audio HD83 HP amp. Hand built Monitors with external crossovers , Volt 250 bass & ABR, Scanspeak 13M8621 Mid & Scanspeak D2905/9300 Hi. HD595 & Beyer 880 (600 ohm) cans.

    The whole problem with the world is that fools and fanatics are always so certain of themselves, and wiser people so full of doubts.
    -Bertrand Russel

    John.

  10. #30
    Join Date: Jul 2010

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    Quote Originally Posted by Ali Tait View Post
    How much of an improvement did you find the regenerator?
    Humungous Ali, i would never want to be without one (even if the twat uses loads of juice & acts like a space heater ). For the first time ever, even with a dedicated mains spur i have zero pops, clicks or any other form of annoyance from my system.

    It appears that the front end is the important bit for this as the power amps are not connected to the P600
    Bests, Mark



    "We must believe in free will. We have no choice" Isaac Bashevis Singer

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