Looking for help with long run hdmi

M

mx416

Audioholic
Hi all.

Getting ready to move into a brand new house in two weeks (lucky me). Unfortunately I am having trouble understanding and finding the right hdmi cable for my installation.

The installation is as follow
Source: new blu-Ray player ->
denon x4300h ->
40’-50’ run through walls ->
Display: LG nano 8 75”

I would like to be able to run full 4K with Dolby vision/ other forms of HDR.

1. Is my receiver capable of Dolby vision?
2. What choices are out there for a 50’ hdmi capable of full 4K HDR


Thanks for the help
 
highfigh

highfigh

Seriously, I have no life.
Hi all.

Getting ready to move into a brand new house in two weeks (lucky me). Unfortunately I am having trouble understanding and finding the right hdmi cable for my installation.

The installation is as follow
Source: new blu-Ray player ->
denon x4300h ->
40’-50’ run through walls ->
Display: LG nano 8 75”

I would like to be able to run full 4K with Dolby vision/ other forms of HDR.

1. Is my receiver capable of Dolby vision?
2. What choices are out there for a 50’ hdmi capable of full 4K HDR


Thanks for the help
Worry less about what the receiver can do and more about how you will be able to replace HDMI cables.

Use some kind of conduit- don't just bury it in the walls. DO NOT staple it in place. DO NOT kink it or pinch it. Don't even look at it. OK, that's a bit extreme, but not much.

If you want 4K or eventually higher, wire won't work, so you might want to bite the bullet and go with HDMI over fiber. Yes, they're very expensive but at this point, it's the best way to prevent finding out that you wasted money on a cable that stopped working because of a firmware update (like the Key Digital cable that stopped working and the company wouldn't replace under warranty- to make it worse, the tech support guy told me that I could cut the ends off, terminate it with RJ45 and use one of their HDMI extenders.

Whatever you do, use conduit that's larger than you think you need- conduit should only be filled to 60% and even then, it's not always easy to pull an HDMI out because of the ends when the conduit is empty. DO NOT use elbows and other connectors for the conduit to make its path more neat. If you do, you'll never pull it where it needs to go and if it needs to be replaced, it will never happen. DO NOT EVER bend the end of an HDMI cable to tie it to a fish tape or pull string!!!!!!!!!!!!!!!!!!!!!

As much as I understand wanting to DIY this, I would recommend talking to a few custom integrators, to get an idea of what you need and how the cable feeds need to be done. Unless your walls are open, they will be able to find better pathways from the source to the display. If you have a basement or attic on the room(s) that will be involved, go up/down to get to the open space before crossing to the next vertical path, not across and inside of the walls.
 
highfigh

highfigh

Seriously, I have no life.
I believe you will need to use a balun for a run that long. I have no idea if this is the right product or a good quality but is what popped up goggling HDMI Balun

https://www.monoprice.com/product?p_id=21609&gclid=CjwKCAjwwtTmBRBqEiwA-b6c_3HkXYR06X72naAhdWsFWXgOI21tqxpQD4lPrYv9kZNwjVaB1MEu4xoChYsQAvD_BwE


Sent from my iPhone using Tapatalk
Technically, it's not a balun, it's called an 'HDMI extender'. Also, I wouldn't expect this to work well with only one Category cable- the required bandwidth is making copper wire useless for long runs.
 
M

mx416

Audioholic
Thanks for the previous responses highfigh. As you mentioned in your last paragraph this cable will be ran up one wall into the attic, then over 10' and then down to the TV. (Up/over/down). The walls are finished in the house so access is limited.
 
F

fftfk

Enthusiast
Technically, it's not a balun, it's called an 'HDMI extender'. Also, I wouldn't expect this to work well with only one Category cable- the required bandwidth is making copper wire useless for long runs.
What’s the difference? Not being difficult just trying to learn as I am in a similar scenario.


Sent from my iPhone using Tapatalk
 
BMXTRIX

BMXTRIX

Audioholic Warlord
So, the first Monoprice extender linked will not work because in the specifications it is only rated to 10.2Gb/s, which is too slow for HDR 4K content. This is something to watch out for as it is a VERY common thing to specify 4K and even 4K/60, but still be at 10.2Gb/s when HDR 4K requires 18Gb/s.

The next two cables you linked to are both rated appropriately as 18Gb/s HDMI cables. We are seeing it more and more that 18Gb/s cables are fully rated to that specification. You can be assured that with those cables that they will carry the full bandwidth that HDMI 2.0 offers.

Now, the ENTIRE context goes back to the second response you got from @highfigh - RUN CONDUIT!

RUN CONDUIT! RUN CONDUIT! RUN CONDUIT!!!!

HDMI 2.0 didn't exist a few years ago. HDMI didn't exist 15 (or so) years ago. HDMI will eventually be gone, and if not, the 18GB/s HDMI cable will definitely be replaced by a 49Gb/s HDMI cable. (8K)

RUN CONDUIT!

Carlon 1.25" conduit is the appropriate size to run with sweeping bends in it to allow smooth pulling of a HDMI cable. You don't have to run the current HDMI cable through it, but you want that conduit in place as it is the only true way to 'futureproof' your system.

With a 50' run behind walls, there is ZERO question that conduit is the most important thing you can do from the start.

Well, unless you have a good way to add/remove cables after the fact which is sometimes possible in certain setup situations. I've been in homes where I was able to pull HDMI from a rack to a projector without creating new holes... But the situation to do this is often quite rare.
 
highfigh

highfigh

Seriously, I have no life.
What’s the difference? Not being difficult just trying to learn as I am in a similar scenario.


Sent from my iPhone using Tapatalk
A balun converts from balanced to unbalanced, usually using a ferrite ring with the wire from each end wrapped around the ring some appropriate number of times, an HDMI extender is far more complex and needs a power supply. Audio and analog video used baluns- they usually had the RCA jacks at the ends and used Car5e to connect each to the other. An HDMI extender deals with EDID, allows for ethernet/IR pass-through and sometimes, corrects errors in the signal.
 
highfigh

highfigh

Seriously, I have no life.
Carlon 1.25" conduit is the appropriate size to run with sweeping bends in it to allow smooth pulling of a HDMI cable. You don't have to run the current HDMI cable through it, but you want that conduit in place as it is the only true way to 'futureproof' your system.

With a 50' run behind walls, there is ZERO question that conduit is the most important thing you can do from the start.

Well, unless you have a good way to add/remove cables after the fact which is sometimes possible in certain setup situations. I've been in homes where I was able to pull HDMI from a rack to a projector without creating new holes... But the situation to do this is often quite rare.
I would be tempted to use 1-1/5", but that's just me. OTOH, I did a house last Summer where they needed two HDMI cables from a cabinet to the TV location and the Smurf tube was installed by the Electrician. Nice guy, but he only installed 1".

Only took about 5 minutes to get both of them through, along with two Cat5e.

The pull you describe sounds like a basement with the wall set perpendicular to the floor joists, the basement ceiling was lower than the floor joists or the rack was next to a wall that was higher than the ceiling in the adjacent room.

Regardless, you won- it's rare that it's possible to do that.
 
highfigh

highfigh

Seriously, I have no life.
Thanks for the previous responses highfigh. As you mentioned in your last paragraph this cable will be ran up one wall into the attic, then over 10' and then down to the TV. (Up/over/down). The walls are finished in the house so access is limited.
That doesn't sound bad- just be careful in the attic, to avoid crushing the insulation and remember to seal around the conduit. You may find it in blue or orange- Blue is used mainly by electricians, but custom installers use it, too. Normally, we use the orange kind.
 
Bucknekked

Bucknekked

Audioholic Samurai
I can personally attest to HDMI being finicky with length limitations. You might think it will either work or not work, a binary decision, because its carrying digital data. That's not always the case. I bought a new, high quality and pretty expensive HDMI cable for a longish run to a new TV. The cable length gave me fits for days with random weird-ass problems that drove me nuts. After eliminating everything else in the problem chain, it came down to an HDMI cable that was just over its length limit. It was painful. I moved things a bit and reduced the length of the run and a newer shorter cable and its been working perfectly ever since.

The warnings about length are well considered.
 
newsletter

  • RBHsound.com
  • BlueJeansCable.com
  • SVS Sound Subwoofers
  • Experience the Martin Logan Montis
Top