Mogami & Italian Reference DIY RCA Interconnects

amit11

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I had the opportunity to make another IC using the Belden "Brilliance" 1855A mini RG 59 coaxial cable. This one has an inner foil shielding surrounded by tinned copper braid shield. Core is solid copper of 23 AWG. This cable is sold by Blue Jeans Cables too for digital interconnects (IIRC). It is actually an HD TV cable rated to 4.5 GHz. Capacitance is just 16.3 pF/ft.

Sound is very PRATty and lively, it almost feels like the CD is spinning faster than usual. Mids and highs are good, but bass is still in hiding. Perhaps more hours will bring it forth from its reticence.

After some extended listening, it struck me - Dude, but where's my decay? I then realised that the seeming urgency displayed by the cable was due to the abbreviated decay. I'm not sure if things will improve with use but, prima facie, it doesn't seem to be a signature I favour for my setup. I was attracted to it due to the dual shields (foil is good for rejecting magnetic fields and braid shield takes care of electrical fields), and the low, low capacitance, and had hoped to use it between tonearm and step-up. It will work for a setup that needs a dose of liveliness and PRAT.

PS: I have one more cable to try out - a Helusound balanced mic cable from Germany. It also has foil and braid shielding.
Which rca plug was used?
I have seen this 'hurry' in amphenol connectors.
 

manek

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I had the opportunity to make another IC using the Belden "Brilliance" 1855A mini RG 59 coaxial cable. This one has an inner foil shielding surrounded by tinned copper braid shield. Core is solid copper of 23 AWG. This cable is sold by Blue Jeans Cables too for digital interconnects (IIRC). It is actually an HD TV cable rated to 4.5 GHz. Capacitance is just 16.3 pF/ft.

Sound is very PRATty and lively, it almost feels like the CD is spinning faster than usual. Mids and highs are good, but bass is still in hiding. Perhaps more hours will bring it forth from its reticence.

After some extended listening, it struck me - Dude, but where's my decay? I then realised that the seeming urgency displayed by the cable was due to the abbreviated decay. I'm not sure if things will improve with use but, prima facie, it doesn't seem to be a signature I favour for my setup. I was attracted to it due to the dual shields (foil is good for rejecting magnetic fields and braid shield takes care of electrical fields), and the low, low capacitance, and had hoped to use it between tonearm and step-up. It will work for a setup that needs a dose of liveliness and PRAT.

PS: I have one more cable to try out - a Helusound balanced mic cable from Germany. It also has foil and braid shielding.
I had used it in my amp as hookup. They are a bit hard to bend but cable ties did the trick. Used them as digital interconnects as well. I dont remember having any issue with decay or prat. But I settled down with them as digital interconnects for a while.

Just curious, what solder were you using ?

Manek
 
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