why use CAT5 cable? - Page 3 - diyAudio
Go Back   Home > Forums > Loudspeakers > Full Range

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 30th December 2009, 08:28 PM   #21
frugal-phile(tm)
diyAudio Moderator
 
planet10's Avatar
 
Join Date: Oct 2001
Location: Victoria, BC, NA, Sol III
Blog Entries: 5
Quote:
Originally Posted by mondogenerator View Post
plus that and the time delay you speak of, if not imagined by those that believe it; would be caused capacitively i assume, much like the 'buckets' in a BBD IC, and i would've though would be worse in CAT5
Due to lack of a deep enuff background on the subject, i'm not able to comment on this. I will reproduce this graph of actual measures. If the phase can be related to time delay, and one can take the know human time displacement threshold and convert it to frequency (unknown), then one needs to look at these out to 50 kHz.

Click the image to open in full size.

The supporting narrative is here http://www.t-linespeakers.org/oddsen...ittX/cat5.html (i have to fix the picture link on that page)

dave
__________________
community sites t-linespeakers.org, frugal-horn.com, frugal-phile.com ........ commercial site planet10-HiFi
p10-hifi forum here at diyA
  Reply With Quote
Old 30th December 2009, 08:40 PM   #22
dhaen is offline dhaen  Europe
diyAudio Moderator Emeritus
 
dhaen's Avatar
 
Join Date: Jun 2002
Location: U.K.
Dave,

It would be interesting to know the source and load impedance used for that test, and whether the source was balanced or unbalanced.
  Reply With Quote
Old 30th December 2009, 09:44 PM   #23
frugal-phile(tm)
diyAudio Moderator
 
planet10's Avatar
 
Join Date: Oct 2001
Location: Victoria, BC, NA, Sol III
Blog Entries: 5
John,

I some thread here, Aaron went into more detail. I couldn't find it thou.

dave
__________________
community sites t-linespeakers.org, frugal-horn.com, frugal-phile.com ........ commercial site planet10-HiFi
p10-hifi forum here at diyA
  Reply With Quote
Old 30th December 2009, 11:14 PM   #24
diyAudio Member
 
Alex from Oz's Avatar
 
Join Date: Jan 2008
Location: Canberra, Australia
Cat 5 diy cable shootout
  Reply With Quote
Old 30th December 2009, 11:23 PM   #25
diyAudio Member
 
Geek's Avatar
 
Join Date: Sep 2004
Quote:
Originally Posted by Alex from Oz View Post
That was full of WIN!

Cheers!
  Reply With Quote
Old 31st December 2009, 12:09 AM   #26
diyAudio Member
 
Join Date: Nov 2007
Location: Dallas
From the picture, looks like he tested CAT5 as-if it were Litz wire.
Didn't split out the ends as true parallel 100ohm transmission lines.
Maybe I'm misinterpreting what I see in the photograph?

12x 100ohm pairs (3 CATs) in parallel makes an awfully good 8.3 ohm
ladder network. I wonder how that would have scored in his test?

Then again, he would have needed a resistive load at the far end to
see L and C begin to cancel each other out... I can't think any easy,
cheap, or off the shelf way to measure that effect with anything
other than 50 ohm antenna analyzer. Which is obviously not gonna
measure properly into 8.3 ohms...

You could thus measure two pairs in parallel. but I don't know how
much that tells you truthfully about 12 pairs bundled in parallel?

Last edited by kenpeter; 31st December 2009 at 12:31 AM.
  Reply With Quote
Old 31st December 2009, 01:04 AM   #27
frugal-phile(tm)
diyAudio Moderator
 
planet10's Avatar
 
Join Date: Oct 2001
Location: Victoria, BC, NA, Sol III
Blog Entries: 5
Quote:
Originally Posted by planet10 View Post
In some thread here, Aaron went into more detail. I couldn't find it thou.
Here is the 1st post on the methodology.

Do speaker cables make any difference?

dave
__________________
community sites t-linespeakers.org, frugal-horn.com, frugal-phile.com ........ commercial site planet10-HiFi
p10-hifi forum here at diyA
  Reply With Quote
Old 31st December 2009, 06:29 AM   #28
diyAudio Member
 
mondogenerator's Avatar
 
Join Date: Sep 2009
Location: City Of Villans
Blog Entries: 1
Default thanks peeps

well its a very informative lot of info here...benefits may just be subjective, and maybe better suited to FR speakers in SOME cases...i dont have FR speakers but posted here as there are some people here that have great knowledge or experience that arent into the multi-way thing. Some here like you dave, have a fist in every pie so to speak. Either way in many ways both fullrangers and woof tweeters people are often seeking the same goals, albeit in different ways and accepting different compromises. Got a bit of HQ CAT5 LAN cable here and might just try it---but since i have a 30watt SS amp and 2 way speakers of some 87dB/W, it may prove less impressive than the current cable i have, or i may be surprised; or even not notice any change at all.

food for thought at least, and an experiment. I WAS thinking of using lighter gauge for tweeters and heavier for woofers but that may NOT be a good idea, judging by the last posts
__________________
Every new piece of knowledge pushes something else out of my brain - Homer.....................Simpson
  Reply With Quote
Old 2nd January 2010, 11:03 PM   #29
mgrabow is offline mgrabow  United States
diyAudio Member
 
Join Date: Dec 2009
Location: USA
At short lengths is may work, but at longer lengths ot will choke the bass...
  Reply With Quote
Old 27th January 2010, 02:54 AM   #30
diyAudio Member
 
mr2racer's Avatar
 
Join Date: Jul 2009
Hey, wire does make a difference. I went to friend's house that had just purchased an NAD integrated amp and a pair of B&W's. Really sounded like crap. (He thought it was great.) I took an audiophile friend over to his house and could tell by the look on his face he agreed. I ducked out pretending to get a Coke and went home to get a pair of Kimber Kables. HUGE difference over his patch cord. My only test instruments are a good DVOM and my ears. The ears gave a thumbs up!

Also, for yucks I made a set of cat five patch cords for a friend for Christmas. They were noticably better than his @#$%& Shack patch cords and not much different form the Kimbers. I used three strands, two for gound and one for positive and wound by hand, ala Kimber. Next I plan to try them as speaker cables. Don't knock it till you try it. My audiophile friend is a union teladata tech. Read free cat 5 remnants.
  Reply With Quote

Reply


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Questions about making Cat5 speaker cable wixy Everything Else 1 10th March 2007 06:57 AM
DVI video cable using CAT5 wire? montreal Digital Source 0 7th September 2006 05:20 AM
What speaker cable for Class-T amps, Cat5 MrDodo Class D 12 8th December 2005 10:44 PM
Cat5 Nappylady Multi-Way 27 31st March 2003 01:13 PM


New To Site? Need Help?

All times are GMT. The time now is 06:39 PM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2