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20m cable run!

Rossmartin

Active Member
Good evening all!

After some advice for my living room setup. I'm currently building a false chimney breast that has our new Panasonic 50" VT30 Plasma on it. I am moving the amp (Onkyo 605) and sky box etc under the stairs. After pulling the floor upstair up the cable run which i estimated to be 10 meters is now between 15 and 20 meters due to a nice metal beam blocking my way!

I'm looking to future proof as much as i can so want to run decent cables now. Can anybody recommend a 15m HDMI cable and some speaker cable suitable for a 20m run, i will be going 5.1 and the 20m is for the front three speakers!?

HDMI i was looking at the 15m Mastero 1.4a version. Really not sure about speaker cable!!

Any advise would be great!

Many Thanks

Ross
 
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diablo

Active Member
The 20 metre speaker cables for the fronts and centre should have a resistance below 5% of the speaker impedance - accoding to generally accepted axioms. :) So runs of 4mm² cable should be just sufficient even for 4 ohm speakers as long as they are good copper rather than chinese junk. Something like this maybe -

Fisual S-Flex Studio Grade Speaker Cable 2 x 4mm - Fisual S-Flex - Audiovisual Online - Home Cinema and Hifi Specialists

Though 6mm would be better, but what type of cable do you need? Does it need to be any particular shape or thickness to fit in with your plans ?

I only have experience of HDMI cables up to 10m so cannot help on that score.
 
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Joe Fernand

Distinguished Member
AVForums Sponsor
A decent gauge of conduit is your best ‘future proofing’.

15m can still be tricky with some devices so best to run 2 x CAT6 alongside the long HDMI cable as your Plan B – you may want to add a third CAT6 as your next TV may be a ‘Smart’ device that requires Internet connectivity.

What are you planning in terms of controlling the SKY box/AVR?

Joe
 

Rossmartin

Active Member
Hi Diablo and Joe!

Thanks for your replies!

I have run 25mm conduit so not bothered about asthetics as it will all be hidden. I just want to get something that is good quality and will bring out the best with what i have. Would like to think that if i upgraded within the next couple of years to better speakers that i wouldn't have to replace the cables.


I ran two Cat6 cables for HDMI last night just in case after reading some of Joe's threads. I also have two Cat6 network points behind the TV. IR is being controlled using one of the Keene devices. This i am running over Cat 5 using the 3.5mm to Cat 5 converters. If i had to use HDMI to Cat5/6 converters, would i loose signal quality with the connections...or is that now not a problem as its HDMI?

Thanks Again

Ross
 

Joe Fernand

Distinguished Member
AVForums Sponsor
No signal quality loss using Extenders that use 2x CATx or single wire HDBaseT solutions.

Joe
 

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