Go Back   Home > Forums > Loudspeakers > Subwoofers

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 25th June 2006, 12:41 PM   #51
diyAudio Member
 
BlackCatSound's Avatar
 
Join Date: Oct 2004
As he is going from RCA to XLR the only option is to earth lift the XLR end.
  Reply With Quote
Old 25th June 2006, 12:48 PM   #52
diyAudio Member
 
Join Date: Nov 2002
I'm not clear and need a picture of what he has done.

This isn't all that difficult.
  Reply With Quote
Old 25th June 2006, 02:33 PM   #53
diyAudio Member
 
Join Date: Jul 2005
Location: North Derbyshire
Quote:
Originally posted by burnedfingers

This practice will and does vary from consultant to consultant. Some favor lifting the shield on the input and some on the output.
Makes no difference which end really, as long as you break the earth loop.

But it's very hard to diagnose and give a complete answer on a forum, I'm sure most of us here could cure it in a couple of minutes if we were there?.
__________________
Nigel Goodwin
  Reply With Quote
Old 25th June 2006, 03:31 PM   #54
diyAudio Member
 
Join Date: Nov 2002


Quote:
But it's very hard to diagnose and give a complete answer on a forum, I'm sure most of us here could cure it in a couple of minutes if we were there?.
We have done it so many times that we don't give it a second thought anymore.
  Reply With Quote
Old 25th June 2006, 04:31 PM   #55
diyAudio Member
 
Join Date: May 2006
well the part that I dont understand is that these cables are low noise RCA to XLR cables, so haven't they already done what I would have to do anyway? Like I said before, On the RCA side there is one shielded wire that connects to the pin, and then another 2 that connect to the sleve, and then on the XLR side the shielded wire goes into pin 3 and the other 2 wires go into 1 and 2 respectively. So I left the shielded one alone becasue thats the signal wire, and since the other 2 were soldered to the sleve on the RCA side, I tied those together and soldered them to pin 1 on the XLR side, and ran a jumper wire between 1 and 2. I thought this was how its done, however I guess not becasue the hum is even worse. Is there a different procedure for using male and female XLR's? Becasue since its a equalizer its got 2 male inputs from the amp and then 2 female outputs back to the amp. So I guess its going from RCA to XLR with the males and from XLR to RCA for the females.

Thanks again for having the patience to work with me guys, you don't know how much I appreciate it.
  Reply With Quote
Old 25th June 2006, 04:42 PM   #56
diyAudio Member
 
BlackCatSound's Avatar
 
Join Date: Oct 2004
Centre pin of the RCA to XLR pin 3.
Shield of the RCA to XLR pin 2.
Nothing to XLR pin 1.

Give it a go.
  Reply With Quote
Old 25th June 2006, 04:43 PM   #57
diyAudio Member
 
Join Date: May 2006
Here are 2 EXTREMELY low quality pictures, if you can discern anything from them I'll be surprised, but heres the deal. On the RCa side, the signal wire is the shielded one, and then theres that piece of flat metal which has 2 wires soldered to it at the bottom. Then on the XLR side theres the same signal wire, and the other 2 thinner wires go to pins 1 and 2. Isnt this procedure essentially the same exact thing as running the signal wire from one pin to another, and then running the shield to another pin and then having a jumper between them? Either way the signal wire takes one pin and the shield take the other 2, they just made it look nicer.
Attached Images
File Type: jpg 2.jpg (18.3 KB, 82 views)
  Reply With Quote
Old 25th June 2006, 04:45 PM   #58
diyAudio Member
 
Join Date: May 2006
Heres another
Attached Images
File Type: jpg 1.jpg (11.6 KB, 85 views)
  Reply With Quote
Old 25th June 2006, 04:59 PM   #59
diyAudio Member
 
Join Date: Nov 2002
Maybe this will help
Attached Files
File Type: pdf #2.pdf (26.3 KB, 15 views)
  Reply With Quote
Old 25th June 2006, 05:09 PM   #60
diyAudio Member
 
Join Date: Nov 2002
This was scanned from a typical amplifier manual. In this case its an Altec Lansing model 9442. Its a commercial piece. Don't pay any attention to the voltage wiring chart at the top.

Figure #2

This is standard wiring practice for unbalanced and balanced in's and outs.

It clearly shows an unbalanced source going to the 9442 input and how to wire it.
  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
Excess Audio Test Equipment 1audio Swap Meet 5 29th September 2011 09:13 AM
How to destroy your high-end audio equipment... HaflerFreak Solid State 109 27th May 2011 07:04 PM
Audio Equipment For Sale In Minnesota RMPEngineer Swap Meet 27 15th January 2010 02:28 AM
Unloading audio equipment Magnetmaz Swap Meet 5 18th October 2007 10:54 PM
fixing broken audio equipment cowanrg Everything Else 10 7th August 2002 11:38 PM


New To Site? Need Help?

All times are GMT. The time now is 07:14 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