Are SSC interconnects screened?

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zebbo
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Are SSC interconnects screened?

Unread post by zebbo » Sat Apr 14, 2018 11:08 pm

I have a pretty weird issue.
I recently received one of my sets of long SSC interconnects to wire up the Cubix Pro's. Now, the Pro's have been powered up for a while and are silent, (apart from some slight humming transformers), but the moment I hooked up the R/H speaker it hummed/buzzed like a bastard - audible from the listening position 8ft or so away. I've swapped cables, swapped channels even swapped speakers but I still get the hum just on the R/H side.
I'm assuming that it's something being picked up by the cable just in that position. I've tried re-routing the cable, turning off the Virgin TV box, the router, the printer in fact everything I can find but I'm still getting the buzz! Which brings me on to my opening question.
Audio Grail "Sable" Garrard 401 with constrained layer plinth / SME V / Benz Gullwing SLR, Phono 3 + 2X BBPSU - MEGA!, NVA P90sa, NVA Cubix-Pro, (top & mid sections). (Oh and a Pioneer BDP LX70A when I just want some background music!)

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karatestu
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Re: Are SSC interconnects screened?

Unread post by karatestu » Sun Apr 15, 2018 8:33 am

I dont think they are screened, there may be a faraday cage though that is not connected to earth.
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terrybooth
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Re: Are SSC interconnects screened?

Unread post by terrybooth » Sun Apr 15, 2018 9:12 am

Loud buzz (I mean really load) is usually a bad contact or broken cable (I found out to my cost handling SSP clumsily :oops: )
Pioneer PL71/DL103/ Phono2/HiFiPi/P90SA/TIS/CubixPro two-up

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zebbo
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Re: Are SSC interconnects screened?

Unread post by zebbo » Sun Apr 15, 2018 10:58 am

Oh yes I know that sound! :lol:
But this isn't that as it didn't matter which cable or even which speaker was used in that position it buzzed when connected up. It must be being picked up by the cable on that side. The only thing I haven't done yet is to swap the amp power supplies from one side to the other to see if the buzz moves sides. In the meantime I'm going to order a cheapo shielded cable just to check if that stops it.
Audio Grail "Sable" Garrard 401 with constrained layer plinth / SME V / Benz Gullwing SLR, Phono 3 + 2X BBPSU - MEGA!, NVA P90sa, NVA Cubix-Pro, (top & mid sections). (Oh and a Pioneer BDP LX70A when I just want some background music!)

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Dr Bunsen Honeydew
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Re: Are SSC interconnects screened?

Unread post by Dr Bunsen Honeydew » Sun Apr 15, 2018 12:25 pm

Swop the cables. Or SC are screened so check with one of those or other screened cable.

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zebbo
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Re: Are SSC interconnects screened?

Unread post by zebbo » Sun Apr 15, 2018 12:58 pm

I have swapped cables, reversed the channels and even swapped the actual speakers themselves but the buzz stays on the R/H side. Later this afternoon I will swap the power supplies over just to see if the buzz moves over also. With no signal cable attached all sections are virtually silent.
Audio Grail "Sable" Garrard 401 with constrained layer plinth / SME V / Benz Gullwing SLR, Phono 3 + 2X BBPSU - MEGA!, NVA P90sa, NVA Cubix-Pro, (top & mid sections). (Oh and a Pioneer BDP LX70A when I just want some background music!)

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Dr Bunsen Honeydew
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Re: Are SSC interconnects screened?

Unread post by Dr Bunsen Honeydew » Sun Apr 15, 2018 3:59 pm

Sounds like a partial version of the damage as happened to the other one. Like a good wine they obviously don't like travelling, they have obviously been damaged.

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zebbo
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Re: Are SSC interconnects screened?

Unread post by zebbo » Sun Apr 15, 2018 4:34 pm

I'm bloody knackered!
Right, the only thing I hadn't moved in all this was the power supplies so:
Swapped BOTH pairs of power supplies over left-to-right, result = Buzz has moved from R/H side to L/H side so:
Swapped JUST TOP pair of power supplies back left-to-right, result = Buzz is now back on R/H side.
This would indicate to me that the source of the interference is that one power supply.
Audio Grail "Sable" Garrard 401 with constrained layer plinth / SME V / Benz Gullwing SLR, Phono 3 + 2X BBPSU - MEGA!, NVA P90sa, NVA Cubix-Pro, (top & mid sections). (Oh and a Pioneer BDP LX70A when I just want some background music!)

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Dr Bunsen Honeydew
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Re: Are SSC interconnects screened?

Unread post by Dr Bunsen Honeydew » Sun Apr 15, 2018 4:38 pm

Push the two halves of the flying lead together HARD until click and full contact, the plugs can back off and give partial contact. It has worked perfectly well for years, it gets moved and you have problems.

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applemarc
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Re: Are SSC interconnects screened?

Unread post by applemarc » Sun Apr 15, 2018 5:51 pm

Just to add to that I checked them before packing them up and had no noise.
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