I bought the Sennheiser HD 560S

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The End

Well-known member
Apr 24, 2021
25
0
1,540

Do you mean that if I connect HDMI eARC out on the tv to HDMI eARC out on the AV receiver the video and sound goes both ways? That sounds a little too good if You don't mind me saying...
 

Gray

Well-known member
Well, you don't have any functioning 4.4 mm Pentaconn balanced. Didn't such a cable com with the headphones?
That is a functioning 4.4mm balanced - and the one that I use most.
No, they don't supply a balanced cable with the 560S.
The long one (top right in my photo) is the one they supply - but, as supplied, a 3-pole (TRS) plug is fitted at the amp end.
You'll see that the headphone end is a 4-pole plug and crucially they use a 4-core cable to it (where they could have used 3-core, with negative poles paired at the 4-pole plug).

Which means that fitting a Pentaconn plug gives you 4 separate poles from the amp to the drivers - hence balanced operation.
 

The End

Well-known member
Apr 24, 2021
25
0
1,540
That is a functioning 4.4mm balanced - and the one that I use most.
No, they don't supply a balanced cable with the 560S.
The long one (top right in my photo) is the one they supply - but, as supplied, a 3-pole (TRS) plug is fitted at the amp end.
You'll see that the headphone end is a 4-pole plug and crucially they use a 4-core cable to it (where they could have used 3-core, with negative poles paired at the 4-pole plug).

Which means that fitting a Pentaconn plug gives you 4 separate poles from the amp to the drivers - hence balanced operation.


Yes, sorry, it was a brain-fart from me. Do you know that the headphone plugs on the 660S and others are the same as on the HD 414 from 1968 and maybe even earlier phones?
 

Gray

Well-known member
Yes, sorry, it was a brain-fart from me. Do you know that the headphone plugs on the 660S and others are the same as on the HD 414 from 1968 and maybe even earlier phones?
No, I reckon the only similarity between old and new will be the fact that they're 2 pole connectors.

I had the old HD-420 which had a couple of sharp pins - the 660S, for example, has a wider connector, so even if it uses pins, the diameter / spacing between them is likely to be different.
 

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