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30 foot long Balanced Cables to Balanced/RCA Adapters into Amp's Stereo RCA inputs?

I put this under 'cables', and am repeating it here because I always get good help here.

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I just bought Blu-Ray player: Oppo BDP-105, arrives in a few days.

 Primarily for it's 2 channel audio quality.

It just occurred to me, I could use all of it's audio, video, future streaming features if I:

1. Locate it in the small Home Theater system

2. HDMI to AVR of Home Theater, and

3. Balanced Outputs (audio only): 30 feet to the 2 channel amp in main music system (far end of the same room), use balanced/rca adapters at the amps rca in jacks.

then I could always access/see the menu for audio setup, and use all of it's capabilities
,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,

I've never used Balanced Cables.

Advice? Concerns? Avoid doing this!!!

I could buy 50 ft cable for more slack both ends: any reason to keep it to 30 ft?

thanks for any help,

Elliott
elliottbnewcombjr
jayc123
14 posts
 
I have a 105. Just use the RCAs outs of the OPPO to the RCA ins of the amp. Don't use extra adaptors. Waste of money. 

If you pick up RF and or have ground loop problems with the 30 ft RCA cables, purchase a Jensen Transformer ISOMAX input transformer. Mount it as close to your amp as possible using short interconnects. Link:

https://www.jensen-transformers.com/product/ci-2rr/



urbie
275 posts
 
Problem is they're not going to be balanced anymore once you put the adapter to RCA you defeated the purpose of having a balanced cable.
clearthinker's avatar
clearthinker
1,582 posts
 
Multiple posts here say balanced must be fully balanced or there is little or no benefit.  I agree.  Don't waste the extra $$$ on expensive balanced  cables if all your components are not fully balanced.  30ft is a long run and you will have SQ losses running not fully balanced.

I see the OPPO retails at $1199.
So I guess a good used one is around $600.

If you really want to use it in two rooms 30ft apart why have the inconvenience of moving between rooms to access it and the cost of 60ft of decent cable.  Just buy a second OPPO.
mijostyn's avatar
mijostyn
8,570 posts
 
Not a bad idea clearthinker, but the losses with the right cables are not the bad, he might lose 1 dB at 20 kHz which many of us can not hear anyway. Before balanced ins and outs became popular those of us with amps behind our speakers frequently had to run long single ended lines. The benefit of mono amps and short speaker cables was well worth the longer lines. With good cable it is not the end of the world. But, when you buy commercial interconnects you really do not know what you are getting. Companies like Canare and Belden publish the specs of their cable so, you know exactly what you are getting. Plus, when you make your own you can make them as short as possible. You do not have to go to the next longer length and coil the excess behind the equipment.
cmfuen
2 posts
 
Funny, my first post two days ago was a recommendation of Jensen transformers. I’ll do it again here and suggest the PC-2XR
https://www.jensen-transformers.com/product/pc-2xr/

Regarding the Canare XLR-m to RCA adaptor: I don’t recommend it. It shorts pin 3 to ground. I prefer connecting pin 2 to the RCA + and pin 3 to the RCA ground using a shielded twisted pair cable. Its shield would terminate to pin 1/shell of the XLR.
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