+ Reply to Thread
Page 2 of 2 FirstFirst 12
Results 11 to 20 of 20

Thread: More mains musings....Eliminating hum from speakers and improvements going forward.

  1. #11
    Join Date: May 2012

    Location: Toulouse, France

    Posts: 6,562
    I'm Kevin.

    Default

    Marco,

    [Off topic] You tried those cables yet? [/Off topic]

    Gaz, the Neotech is also OCC, although stranded, and mates up nicely with OCC plugs.
    Kevin

    Too busy enjoying the music....

    European loan coordinator for Graham Slee HiFi system components..

  2. #12
    Join Date: Oct 2008

    Location: Glasgowshire

    Posts: 9,656
    I'm Gary.

    Default

    Will have a play with a couple of options, promised myself I wouldnt though lol

    Second thoughts...I’ll try Marcos option and probably call it quits.
    Assuming it’ll sound more than good enough.
    AC POWER
    Hardwired 10kVA balanced mains powering entire system
    AMPS
    Meridian 557 power Amp (Modded) / PS Audio BHK Preamp (Modded)
    SPEAKERS
    Wharfedale Evo 4.4
    DAC
    PS Audio Directstream (Modded)
    TURNTABLE
    Pro-Ject X8 balanced output via XLR / Ortofon Quintet Blue cartridge
    PHONOSTAGE
    Pro-Ject DS3 B balanced Input (TT and Phonostage powered by Pro-Ject Power box RS2 linear psu)
    DIGITAL
    OPPO 203 (Modded: Linear PSU, i2s output to Dac) - Roon Endpoint, HDMI input used for all things Streaming/ PS5 /AppleTV ... also good for movies apparently?
    MUSIC PLAYBACK
    Tweaked AP-Linux based Roon Server into Oppo 203 as Roon endpoint
    Ipad Roon Remote.
    Apple Music/ YouTube via AppleTV, fed to Dac via Oppo HDMI input/i2s output to Dac.
    SPEAKER CABLES
    Biwired: Duelund DCA10GA (Bass) Duelund DCA16GA (mid & treble) Duelund 12DCA used as jumpers (On
    "Blackcat Cable" Chris Sommivigo's advice - yup, even with biwire it sounds better - and it does)
    INTERCONNECTS
    All Balanced: Ghost+ recording studio XLR cables

  3. #13
    Join Date: Feb 2011

    Location: Troon

    Posts: 2,476
    I'm tony.

    Default

    Strange you mentioning hum Gary ive noticed my BMU a tad noisy of late.

    Weather/temperature increased load on the mains due to the proper winter we have been having?

    I thought maybe my current set up was maybe taxing my 1500 bmu but your post is a bit too much of a coincidence.

    Is the hum coming through the tweeter?

  4. #14
    Join Date: Jan 2008

    Location: Wrexham, North Wales, UK

    Posts: 110,012
    I'm AudioAl'sArbiterForPISHANTO.

    Default

    Quote Originally Posted by CageyH View Post
    Marco,

    [Off topic] You tried those cables yet? [/Off topic]
    Lol. no not yet. Got it pencilled in for tomorrow though, as I'll be in all day and have plenty of time to assess things

    Marco.
    Main System

    Turntable: Heavily-modified Technics SL-1210MK5G [Mike New bearing/ETP platter/Paul Hynes SR7 PSU & reg mods]. Funk Firm APM Achromat/Nagaoka GL-601 Crystal Record Weight/Isonoe feet & boots/Ortofon RS-212D/Denon DL-103GL in Denon PCL-300 headshell with Funk Firm Houdini/Kondo SL-115 pure-silver cartridge leads.

    Paul Hynes MC head amp/SR5 PSU. Also modded Lentek head amp/Denon AU-310 SUT.

    Other Cartridges: Nippon Columbia (NOS 1987) Denon DL-103. USA-made Shure SC35C with NOS stylus. Goldring G820 with NOS stylus. Shure M55E with NOS stylus.

    CD Player: Audiocom-modified Sony X-777ES/DAS-R1 DAC.

    Tape Deck: Tandberg TCD 310, fully restored and recalibrated as new, by RDE, plus upgraded with heads from the TCD-420a. Also with matching TM4 Norway microphones.

    Preamps: Heavily-modified Croft Charisma-X. LDR Stereo Coffee. Power Amps: Tube Distinctions Copper Amp fitted with Tungsol KT-150s. Quad 306.

    Cables & Sundries: Mark Grant HDX1 interconnects and digital coaxial cable, plus Mark Grant 6mm UP-LCOFC Van Damme speaker cable. MCRU 'Ultimate' mains leads. Lehmann clone headphone amp with vintage Koss PRO-4AAA headphones.

    Tube Distinctions digital noise filter. VPI HW16.5 record cleaning machine.

    Speakers: Tannoy 15MGs in Lockwood cabinets with modified crossovers. 1967 Celestion Ditton 15.


    Protect your HUMAN RIGHTS and REFUSE ANY *MANDATORY* VACCINE FOR COVID-19!

    Also **SAY NO** to unjust 'vaccine passports' or certificates, which are totally incompatible with a FREE society!!!


  5. #15
    Join Date: Jan 2008

    Location: Wrexham, North Wales, UK

    Posts: 110,012
    I'm AudioAl'sArbiterForPISHANTO.

    Default

    Quote Originally Posted by Gazjam View Post
    Second thoughts...I’ll try Marcos option and probably call it quits.
    Assuming it’ll sound more than good enough.
    I think it'll hit the spot nicely, and predict you'll get a very worthwhile overall improvement

    Marco.
    Main System

    Turntable: Heavily-modified Technics SL-1210MK5G [Mike New bearing/ETP platter/Paul Hynes SR7 PSU & reg mods]. Funk Firm APM Achromat/Nagaoka GL-601 Crystal Record Weight/Isonoe feet & boots/Ortofon RS-212D/Denon DL-103GL in Denon PCL-300 headshell with Funk Firm Houdini/Kondo SL-115 pure-silver cartridge leads.

    Paul Hynes MC head amp/SR5 PSU. Also modded Lentek head amp/Denon AU-310 SUT.

    Other Cartridges: Nippon Columbia (NOS 1987) Denon DL-103. USA-made Shure SC35C with NOS stylus. Goldring G820 with NOS stylus. Shure M55E with NOS stylus.

    CD Player: Audiocom-modified Sony X-777ES/DAS-R1 DAC.

    Tape Deck: Tandberg TCD 310, fully restored and recalibrated as new, by RDE, plus upgraded with heads from the TCD-420a. Also with matching TM4 Norway microphones.

    Preamps: Heavily-modified Croft Charisma-X. LDR Stereo Coffee. Power Amps: Tube Distinctions Copper Amp fitted with Tungsol KT-150s. Quad 306.

    Cables & Sundries: Mark Grant HDX1 interconnects and digital coaxial cable, plus Mark Grant 6mm UP-LCOFC Van Damme speaker cable. MCRU 'Ultimate' mains leads. Lehmann clone headphone amp with vintage Koss PRO-4AAA headphones.

    Tube Distinctions digital noise filter. VPI HW16.5 record cleaning machine.

    Speakers: Tannoy 15MGs in Lockwood cabinets with modified crossovers. 1967 Celestion Ditton 15.


    Protect your HUMAN RIGHTS and REFUSE ANY *MANDATORY* VACCINE FOR COVID-19!

    Also **SAY NO** to unjust 'vaccine passports' or certificates, which are totally incompatible with a FREE society!!!


  6. #16
    Join Date: Oct 2008

    Location: Glasgowshire

    Posts: 9,656
    I'm Gary.

    Default

    Thanks matey
    AC POWER
    Hardwired 10kVA balanced mains powering entire system
    AMPS
    Meridian 557 power Amp (Modded) / PS Audio BHK Preamp (Modded)
    SPEAKERS
    Wharfedale Evo 4.4
    DAC
    PS Audio Directstream (Modded)
    TURNTABLE
    Pro-Ject X8 balanced output via XLR / Ortofon Quintet Blue cartridge
    PHONOSTAGE
    Pro-Ject DS3 B balanced Input (TT and Phonostage powered by Pro-Ject Power box RS2 linear psu)
    DIGITAL
    OPPO 203 (Modded: Linear PSU, i2s output to Dac) - Roon Endpoint, HDMI input used for all things Streaming/ PS5 /AppleTV ... also good for movies apparently?
    MUSIC PLAYBACK
    Tweaked AP-Linux based Roon Server into Oppo 203 as Roon endpoint
    Ipad Roon Remote.
    Apple Music/ YouTube via AppleTV, fed to Dac via Oppo HDMI input/i2s output to Dac.
    SPEAKER CABLES
    Biwired: Duelund DCA10GA (Bass) Duelund DCA16GA (mid & treble) Duelund 12DCA used as jumpers (On
    "Blackcat Cable" Chris Sommivigo's advice - yup, even with biwire it sounds better - and it does)
    INTERCONNECTS
    All Balanced: Ghost+ recording studio XLR cables

  7. #17
    Join Date: Oct 2008

    Location: Glasgowshire

    Posts: 9,656
    I'm Gary.

    Default

    Quote Originally Posted by wee tee cee View Post
    Strange you mentioning hum Gary ive noticed my BMU a tad noisy of late.

    Weather/temperature increased load on the mains due to the proper winter we have been having?

    I thought maybe my current set up was maybe taxing my 1500 bmu but your post is a bit too much of a coincidence.

    Is the hum coming through the tweeter?
    Hadnt thought of that Tony, weirder in my case as Ive fitted a DC Blocker between mains and my BMU.
    Coming thru the woofers I think, turned the tweeters L-Pad right down, cutting off the tweeter, and hum was present.
    Its a 50hz hum so woofer driven.
    AC POWER
    Hardwired 10kVA balanced mains powering entire system
    AMPS
    Meridian 557 power Amp (Modded) / PS Audio BHK Preamp (Modded)
    SPEAKERS
    Wharfedale Evo 4.4
    DAC
    PS Audio Directstream (Modded)
    TURNTABLE
    Pro-Ject X8 balanced output via XLR / Ortofon Quintet Blue cartridge
    PHONOSTAGE
    Pro-Ject DS3 B balanced Input (TT and Phonostage powered by Pro-Ject Power box RS2 linear psu)
    DIGITAL
    OPPO 203 (Modded: Linear PSU, i2s output to Dac) - Roon Endpoint, HDMI input used for all things Streaming/ PS5 /AppleTV ... also good for movies apparently?
    MUSIC PLAYBACK
    Tweaked AP-Linux based Roon Server into Oppo 203 as Roon endpoint
    Ipad Roon Remote.
    Apple Music/ YouTube via AppleTV, fed to Dac via Oppo HDMI input/i2s output to Dac.
    SPEAKER CABLES
    Biwired: Duelund DCA10GA (Bass) Duelund DCA16GA (mid & treble) Duelund 12DCA used as jumpers (On
    "Blackcat Cable" Chris Sommivigo's advice - yup, even with biwire it sounds better - and it does)
    INTERCONNECTS
    All Balanced: Ghost+ recording studio XLR cables

  8. #18
    Join Date: Mar 2014

    Location: Herefordshire

    Posts: 104
    I'm Alex.

    Default

    Quote Originally Posted by Gazjam View Post
    Great reply Alex, thanks.

    Interesting your using a balanced mains unit similar to myself.
    What gauge of FS cable did you use?

    Thinking 6mm x 2 is the sweetspot?
    I have got a bit mental with the cables. I have 16mm going into an industrial 32A switch to power the BMU and 2 off 10mm going into the Furutech double socket.

    Later in the year I will be running 25mm cable into the dedicated CU instead of the 10mm T&E which is feeding it at present. I am copying the setup that is used in the Astoria recording studio as designed by Philip Newall.

  9. #19
    Join Date: Jan 2008

    Location: Norwich

    Posts: 1,064
    I'm Mike.

    Default

    Quote Originally Posted by Blueflash View Post
    I have got a bit mental with the cables. I have 16mm going into an industrial 32A switch to power the BMU and 2 off 10mm going into the Furutech double socket.

    Later in the year I will be running 25mm cable into the dedicated CU instead of the 10mm T&E which is feeding it at present. I am copying the setup that is used in the Astoria recording studio as designed by Philip Newall.
    How come you've got two T&E cables going into one double socket? I don't know the Furutech, but why would it have two sets of inputs ?

    Can I assume you're replacing your 10mm2 T&E feeding your c.u. with tails? This is the normal installation procedure from either the meter or the junction box, surely. 10mm2 would be used for your radials (which I think you do). I have tails to my c.u. (with individual RCBOs) and 10 as well as 6 mm2 radials to (effectively)my kit.

    I'm not familiar with balanced mains (nor really understand it), and don't use any mains regeneration units, though a local chap with pretty classy kit put one in, onto his one h/d radial and hasn't looked back.

  10. #20
    Join Date: Mar 2014

    Location: Herefordshire

    Posts: 104
    I'm Alex.

    Default

    Quote Originally Posted by Mike Reed View Post
    How come you've got two T&E cables going into one double socket? I don't know the Furutech, but why would it have two sets of inputs ?

    Can I assume you're replacing your 10mm2 T&E feeding your c.u. with tails? This is the normal installation procedure from either the meter or the junction box, surely. 10mm2 would be used for your radials (which I think you do). I have tails to my c.u. (with individual RCBOs) and 10 as well as 6 mm2 radials to (effectively)my kit.

    I'm not familiar with balanced mains (nor really understand it), and don't use any mains regeneration units, though a local chap with pretty classy kit put one in, onto his one h/d radial and hasn't looked back.
    The Furutech double socket is two separate sockets on one face plate so instead of using jumper wires from one socket to the other, I am using one 10mm LF-329 cable for each socket.

    I will be replacing the 10mm cable with LF-329 25mm cable which is very well screened so hopefully will render my setup immune to the effects of RFI.

    With the balanced mains transformer, it gets rid of any DC or RFI on the mains supply so it will sound the same even during peak usage times.

    I do not have to wait until after 9-00 pm to get the best listening experience.

+ Reply to Thread
Page 2 of 2 FirstFirst 12

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •