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HDMI and projectors

jht

Standard Member
It seems that an HDMI interface to projectors in residential fixed installations is not really practical at the moment because of the cable lengths offered.

DVI is not practical if you need to route cable through floor joists, as the hole size needed for the connector is too large. HDMI could solve this issue, if only longer cables were available.

Presumably, analog component will predominate until this issue is resolved.

Any thoughts on this?
 

MAW

Banned
Yes! If you have an hdmi to dvi cable for a dvd player, for instance, you thread it small plug 1st! The probable reason for the HDMI thing is that hDMI carries audio as well, and though many projectors have a speaker, I have yet to know of anyone who uses it! Rear centre perhaps? :D
 
F

friend

Guest
Do you have any good HDMI to DVI cable to recommend 10 meters length ?
Monster hdmi to dvi maxium length is 6 meters

Thanks in advance
 

jht

Standard Member
Originally posted by Gordon @ Convergent AV
Well I've seen a 35foot DVI-HDMI connection working. It was made up of a pile of HDMI and DVI leads linked together. That seems to be more than long enough for your average home installation.

Gordon

Hmmm... lots of connections sitting in a floor void that requires re-decorating / carpeting to get to - I don't think so. It's not as if HDMI connectors have retaining screws or anything. A slightly too eager yank at one end, and you've got to take the whole lot up again.

As MAW says, with an HDMI - DVI cable you thread the HDMI end through the holes.

Different cable manufacturers say different things about longer cables. Some will do longer lengths if you are prepared to order 100/200+, others claim that it is difficult to stay within the bounds of the HDMI standard with longer lengths. One thing's for certain: a cable with breaks in carrying TMDS has got to be worse than one without breaks.

I thought that one of the points of HDMI was that the video signalling was a reduced subset of the DVI spec, allowing cheaper connectors, cable and longer lengths. I guess the cable companies are still in the "rip-off-the-early-adopter-while-you-can" phase with this.

If you can justify the quantities, 10m cables are available for $10 - $15 each.

(the way this thread has developed, it should have been in Cables - apologies)
 

Gordon @ Convergent AV

Distinguished Member
AVForums Sponsor
Originally posted by jht
Hmmm... lots of connections sitting in a floor void that requires re-decorating / carpeting to get to - I don't think so. It's not as if HDMI connectors have retaining screws or anything. A slightly too eager yank at one end, and you've got to take the whole lot up again.

As MAW says, with an HDMI - DVI cable you thread the HDMI end through the holes.

Different cable manufacturers say different things about longer cables. Some will do longer lengths if you are prepared to order 100/200+, others claim that it is difficult to stay within the bounds of the HDMI standard with longer lengths. One thing's for certain: a cable with breaks in carrying TMDS has got to be worse than one without breaks.

I thought that one of the points of HDMI was that the video signalling was a reduced subset of the DVI spec, allowing cheaper connectors, cable and longer lengths. I guess the cable companies are still in the "rip-off-the-early-adopter-while-you-can" phase with this.

If you can justify the quantities, 10m cables are available for $10 - $15 each.

(the way this thread has developed, it should have been in Cables - apologies)
Your comment about breaks in cable being worse is wrong. Crap poor quality cables will not transmit the HQ signals while good well designed cables with adaptors will. I understand the issues with pulling linked cables apart. I thought your concern was that you couldn't transmit over distance with hdmi not that there were limited long cable suppliers. The former is not true while the latter is.


Gordon
 
K

Kramer

Guest
Originally posted by jht
(the way this thread has developed, it should have been in Cables - apologies)
No apologies necessary.

Definitely a cable thread though so moved to the cabling forum.

:smoke:
 

Joe Fernand

Distinguished Member
AVForums Sponsor
jht

I can now supply 9m HDMI cables - though not at 10USD; they are nearer £150.

As you say using back to back adapters under a floor is a pain - though if you can get the jointed cable through your entry/exit points it's fairly easy to use a cable tie or two to ensure the cables are never pulled out of the adapter.

Were also awaiting our first stock of the WireWorld HDMI cables and these go up to 20m on the 'Starlight5' and 15m on the lower spec range (sorry don't know its name yet) - please note the WireWorld cables are not priced for the faint of heart!!!

Again not low cost but if you do want a thin cable to fire around the house and need 'long' cable runs you could go Fibre Optic - we supply the Gefen DVI to Fibre kits and these are good for up to 330 foot with 1080i.

Best regards

Joe
 

Jack the lad

Novice Member
Originally posted by Joe Fernand
jht

I can now supply 9m HDMI cables - though not at 10USD; they are nearer £150.

Were also awaiting our first stock of the WireWorld HDMI cables and these go up to 20m on the 'Starlight5' and 15m on the lower spec range (sorry don't know its name yet) - please note the WireWorld cables are not priced for the faint of heart!!!

Hi joe

Can you do a 12m HDMI to HDMI if so how much? :)

Be gentle :lease:
 

Joe Fernand

Distinguished Member
AVForums Sponsor
jack daws

Its going to have to be a two piece cable plus an in-line adapter for 12m - unless you want to go WireWorld at SRP - £750 YES £750 (ex delivery of course).

Drop me a PM and I'll work out a price for you.

Joe

PS I hope you left the new owner a user guide!!!
 

Jack the lad

Novice Member
Joe your mail box is full :)

£750 :eek:

How much for the two piece cable plus an in-line adapter for 12m?

PS User guides all in the price of the house :D Bloody nightmare renewing it all though :rolleyes:

EDIT

I think I can rearrange the room should get away with a 9m HDMI lead. How much are these?

Thanks

Jack
 

Jack the lad

Novice Member
Originally posted by Joe Fernand
Jack

You have a PM

Joe (busily trying to free up space in his PM box!
Replied ;)

Apparently just sqeezed my message through :rotfl:
 

Filbert

Novice Member
Jack,

We sell the Wireworld Starlight 5 (12m) for £562.48 inc P & P :thumbsup: , but I suspect this is still way too expensive for what you want.

Gefen's range of HDMI cables (which have been selling like hotcakes since we first started selling them) are available in the following lengths

6ft (1.83m)
10ft (3.05m)
15ft (4.57m)

Gefen also supply an in line adapter called the HDMI Mate which allows for linking multiple HDMI cables together.
 

Jack the lad

Novice Member
Thanks for the reply Filbert :)

You arent wrong about the Wireworld Starlight 5 :eek:

The minimum legnth I can get away with is 12m. :)
 

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