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  • Furutech SK Filter

    Noticed this accessory from Furutech on Dave's Youtube page and was new to me. Anyone have a chance to play with it?

    Myles B. Astor, PhD, Administrator
    Senior Editor, Positive-Feedback.com
    ________________________________________

    -Zellaton Plural Evo speakers
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    -Goldmund Mimesis 37S Nextgen preamplifier
    -Doshi EVO and Goldmund PH3.8 phonostage
    -VPI Vanquish direct-drive turntable
    -VPI 12-inch 3D Fat Boy dual pivot tonearm, VPI 12-inch 3D Fat Boy gimballed and SAT LM-12 arm
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    -Technics RS1506 with Flux Magnetic heads, Doshi V3.0 tape stage (balanced)
    -Assorted cables including Transparent XL Gen. 6, Skogrand, Viero, Kubala-Sosna, Audience Au24SX, Genesis Advanced Technologies and Ensemble Power Cords
    -Accessories including Stillpoint Aperture panels, Cathedral Sound panels, Furutech NCF Nano AC receptacles; Silver Circle Tchaik 6 PLC, Symposium ISIS and SRA Craz 3 racks, Audiodharma Cable Cooker, Symposium Ultra and assorted SRA OHIO Class 2.1+ platforms.

  • #2
    I have never heard of it. What is it supposed to do? I wonder if it effects speed?

    Also, I wonder why those drive threads are moving up and down on the platter? Something seems a bit out of alignment or machining is not quite precise enough. If a belt does that, something is off.
    System link: https://www.whatsbestforum.com/threa...l-sound.32867/
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    Comment


    • #3
      Hi Peter, it removes static charge from an LP, and stops it being generated as the record spins. I appreciate there are plenty of devices and practises out there that supposedly do the same. It's just that this one really does seem to work. Its doesn't affect speed because, if you look closely, it doesn't actually touch the record. It's suspended about 1mm above the LP surface and uses Thunderon which will dissipate any stain charge without physical contact.
      As far as the belts go. At turn on there's a lot of torque and the belts, being elastic, take up some of that before settling down. This takes only a revolution or two as you can see. Sure there's a little bit of wandering after that, which ideally there wouldn't be. I suspect it's down to ultra fine alignment, and the belts not being brand new. Every now and then I give them a wash in soppy water, rinse air dry then re-fit them. This improves the sound slightly (not as much as new belts), but frankly I don't do it more than once every couple of months...

      Comment


      • #4
        Thunderon - not just for monsters anymore! http://www.sanmo.co.jp/thunderon/e-thun-01.html
        Steve Lefkowicz
        Senior Associate Editor at Positive Feedback
        -
        Analog 1: Linn LP12 (MOSE/Hercules II), Ittok, Dynavector 10X5 MK.II Low, iPhono2/iPowerX; Analog 2: Pro-Ject RPM-1 Carbon, Talisman S, iFi iPhono.
        Digital: Samsung 300E5C notebook, JRiver Media Center 28, Tidal HiFi, Qobuz Studio), iFi NEO iDSD, iFi iUSB3, iPurifier2, Audioquest Jitterbug.
        Electronics: DIY passive line-stage, Antique Sound Labs MG-SI15DT-S, Burson Timekeeper Virtuoso
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        Speaker cables: Morrow Audio SP4, Vermouth Audio Red Velvet, Audioquest Type 5
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        Accessories: Sound Organization turntable shelf, Mondo racks, Pangea Audio Vulcan rack, Pi Audio Group Über BUSS, Monster HTS2000 power conditioner, Kinetronics anti-static brush, Pro-Ject VC-S record cleaner, Spin Clean record cleaner.
        Headphones: Schiit Valhalla amp, Burson Conductor Virtuoso Amp, Meze Audio 99 Classic and 99 Neo, Beyerdynamic DT770Pro 600 ohm, DT770 Studio 80 ohm, 1More Triple Driver Over Ear, 1More Triple Driver IEM

        Comment


        • #5
          A record cleaning brush for $350.00 we had anti static brushes back in the 70's and they sure didn't cost $350.00 Heck I use an anti static brush and it can be had in today market place for $15.00 but of course it doesn't say Furutech for that additional $335.00
          Chris
          ----------------------------------------------------------------
          Kef 201/2, Pass xa30.5, W4S STP-SE, Manley Chinook, VPI Classic, Dynavector DV20x2L, ExaSound e32, Acoustic Zen cables. (Office): Vincent SP331 Mkll, Quicksilver Pre, Lumin D1, (Ken Lau Signiture Edition PSU), Bryston BCD-1, Vapor Audio Breeze, WooAudio W6se,Questyle Audio CMA800R LCD-3,HD800s, HD600, Mr Speaker Ether C Flow,

          Comment


          • #6
            I find this Furutech accessory interesting and wonder if it's effect will vary from table to table or is it just an album phenomena? Reason bring this up was that this static electricity was an issue with me back in the day when I owned a VPI TNT or Super Scoutmaster. Every time took an album off there was a pop in my system, muted or not. Finally had to resort to spraying Static Guard on my table and plinth (yes tried different grounding techniques and happened with an acrylic plinth and/or platter). The Static Guard mostly did the trick in preventing this popping sound; at the same time though, it also got rid of a little bit of a hashy and slight grain in the background too. The music was a bit smoother as a result.

            So so wonder if this accessory will work better for tables with plastic platters or plinths?
            Myles B. Astor, PhD, Administrator
            Senior Editor, Positive-Feedback.com
            ________________________________________

            -Zellaton Plural Evo speakers
            -Goldmund Telos 300 stereo amp
            -Goldmund Mimesis 37S Nextgen preamplifier
            -Doshi EVO and Goldmund PH3.8 phonostage
            -VPI Vanquish direct-drive turntable
            -VPI 12-inch 3D Fat Boy dual pivot tonearm, VPI 12-inch 3D Fat Boy gimballed and SAT LM-12 arm
            -Lyra Atlas SL Lambda, Fuuga Mk. 2, vdh Colibri Master Signature, MutechHayabusa, MOFI Master Tracker, Sumiko Songbird cartridges
            -Technics RS1506 with Flux Magnetic heads, Doshi V3.0 tape stage (balanced)
            -Assorted cables including Transparent XL Gen. 6, Skogrand, Viero, Kubala-Sosna, Audience Au24SX, Genesis Advanced Technologies and Ensemble Power Cords
            -Accessories including Stillpoint Aperture panels, Cathedral Sound panels, Furutech NCF Nano AC receptacles; Silver Circle Tchaik 6 PLC, Symposium ISIS and SRA Craz 3 racks, Audiodharma Cable Cooker, Symposium Ultra and assorted SRA OHIO Class 2.1+ platforms.

            Comment


            • #7
              The cool thing about the SK-Filter, Chris, is that it isn't a 'brush' in so much as it doesn't brush (touch) the LP surface at all. I totally agree it appears to be a heck of a lot of money for what looks a bit like a Watts DustBug. I have carbon fibre brushes which certainly dissipate some static but can shed fibres into the groove, I have a Zerostat which seems to work OK, but far from completely, and even a Furutech DeStat 2 which works very well by directing a flow of ionised air at the LP (CD, cables etc). With all of these some LPs seem to be more prone to static and even after treatment, after playing an LP side they are recharged, no matter what anti-static process you used prior to play. The SK-Filter doesn't touch the LP at all so has no negative effect on the system (drag, friction, static generation, interference with resonant behaviour etc etc.). In context of my system value, £350 isn't very much money at all, and since buying the SK-Filter, to be honest I've not felt the need to use any of my other static treatments / devices.

              Incidentally, I do also have a Furutech SK-III brush, now THAT'S a record cleaning brush! And it costs around £100 and at first glance it looks like a make-up brush, but when you look closer: it's exquisitely made, the individual hairs are precisely coated in a conductive layer so that the tips of the hairs which will touch the record surface are left as uncoated natural hair. All that R&D doesn't come cheap, and it is extremely nicely made.

              Comment


              • MylesBAstor
                MylesBAstor commented
                Editing a comment
                Ha! The Furutech brush has been on my to buy list for a while now! Maybe now with Xmas coming up.

            • #8
              A few months ago I gifted myself a Furutech SK-III Brush for my birthday. Couldn't find a US distributor with one in stock so bought it off ebay from Japan for $92. It has two layers of brush material - maybe you can see that in the photo. The inner layer that touches the record is goat hair. The outer layer is acrylic fiber chemically coated with copper sulfide (a conductive material?) I'm thinking this is the same material used on the SK-Filter, sans goat hair.

              I hold the brush with my fingers touching the metal wrapper and my other hand touching grounded metal (my phono-stage chassis.) No lights, no dials. The brush is super-soft and does remove particles at least as well as my carbon fiber Audioquest brush. I have no sense of static. It will be interesting to use it during winter when the air is much drier and conditions for static ripen.


              Furutech SK-III

              I did investigate the more exotic SK-Filter, too. It looks kinda cool. Lowest price I found was ~$450. Best I could determine you must move it twice, once over the record and then off - more steps. I already have the brush ritual, so adding static removal as a part of that made sense. I don't know if static builds up during record rotation and play such that the SK-Filter provides further benefit.

              Comment


              • #9
                Well guys. Just wrote a short review in the magizine i write for about the SK-filter.
                I reduces static build up but the result seemed to vary from record to record and day to day.
                So on some days/records its essential on others you are better off buying 10 nice records instead.

                What I dont understand is why Furutech didnt provide it with a connector for grounding. Surely that would be even more efficient?

                Comment


                • #10
                  Hmmm. perhaps spend less $$ on a cheap record cleaning machine and all static is removed. Cleans your records as well so need for the ultra sized brush.

                  Comment


                  • #11
                    Originally posted by Per Sundell View Post
                    Well guys. Just wrote a short review in the magizine i write for about the SK-filter.
                    I reduces static build up but the result seemed to vary from record to record and day to day.
                    So on some days/records its essential on others you are better off buying 10 nice records instead.

                    What I dont understand is why Furutech didnt provide it with a connector for grounding. Surely that would be even more efficient?
                    Could you post the link? Thanks!
                    Myles B. Astor, PhD, Administrator
                    Senior Editor, Positive-Feedback.com
                    ________________________________________

                    -Zellaton Plural Evo speakers
                    -Goldmund Telos 300 stereo amp
                    -Goldmund Mimesis 37S Nextgen preamplifier
                    -Doshi EVO and Goldmund PH3.8 phonostage
                    -VPI Vanquish direct-drive turntable
                    -VPI 12-inch 3D Fat Boy dual pivot tonearm, VPI 12-inch 3D Fat Boy gimballed and SAT LM-12 arm
                    -Lyra Atlas SL Lambda, Fuuga Mk. 2, vdh Colibri Master Signature, MutechHayabusa, MOFI Master Tracker, Sumiko Songbird cartridges
                    -Technics RS1506 with Flux Magnetic heads, Doshi V3.0 tape stage (balanced)
                    -Assorted cables including Transparent XL Gen. 6, Skogrand, Viero, Kubala-Sosna, Audience Au24SX, Genesis Advanced Technologies and Ensemble Power Cords
                    -Accessories including Stillpoint Aperture panels, Cathedral Sound panels, Furutech NCF Nano AC receptacles; Silver Circle Tchaik 6 PLC, Symposium ISIS and SRA Craz 3 racks, Audiodharma Cable Cooker, Symposium Ultra and assorted SRA OHIO Class 2.1+ platforms.

                    Comment


                    • Per Sundell
                      Per Sundell commented
                      Editing a comment
                      Sorry Miles there is no link to this. Only a text for a print magazine in Swedish so far.

                    • MylesBAstor
                      MylesBAstor commented
                      Editing a comment
                      Thanks!

                  • #12
                    Originally posted by MylesBAstor View Post
                    Noticed this accessory from Furutech on Dave's Youtube page and was new to me. Anyone have a chance to play with it?


                    A few few local enthusiasts use one of these small industrial Panasonic ionizers for anti static control:


                    http://www.digikey.ca/product-detail...006-ND/2785274

                    They mount them on an articulating type microphone stand above the platter and swing it in and out of position during record play. Works quite well. I've used more robust units in high tech process control environments in the past.

                    Cheers
                    Phono: Aesthetix Io Eclipse with 2 Power Supplies and Volume controls
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                    Comment


                    • #13
                      It just landed yesterday together with a SK-III brush. I did the first trial yesterday with some LP's which are prone to static build up. I noticed a serious decrease but I would not draw a definitive conclusion yet.

                      Comment


                      • #14
                        I have been using the SK Filter for ten days now. I can confirm that there is a substantial decrease in static build up. I still have some records where the filter does not perform its magic to its fullest but I don't get static spikes when listening. Highly recommended.

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