Why are XLR outputs male, and inputs female? - diyAudio
Go Back   Home > Forums > Design & Build > Parts

Parts Where to get, and how to make the best bits. PCB's, caps, transformers, etc.

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 29th August 2004, 10:23 AM   #1
Bricolo is offline Bricolo  France
diyAudio Member
 
Bricolo's Avatar
 
Join Date: Nov 2002
Location: Grenoble, FR
Default Why are XLR outputs male, and inputs female?

This is something I don't understand.

On a source, a preamp or whatever you want, the XLR outputs are male, and the inputs are female connectors.
Am I the only one thinking it's odd? It's like an AC wall wart made with a male connector

The opposite would lead to less shortcircuits, no? Is there any reason for this choice?
__________________
Just remember: in theory there's no difference between theory and practice. But in practice it usually is quite a bit difference... Bob Pease
  Reply With Quote
Old 29th August 2004, 10:37 AM   #2
johnnyx is offline johnnyx  United Kingdom
diyAudio Member
 
Join Date: Jan 2004
Location: manchester
Maybe, if the male pins were inputs, and you touched them, there would be very loud buzzing coming from your PA.
Just a thought
  Reply With Quote
Old 29th August 2004, 11:07 AM   #3
trwh is offline trwh  United Kingdom
diyAudio Member
 
trwh's Avatar
 
Join Date: Apr 2002
Location: UK
Phantom power (48V) could be present on a mic input. Although it is current limited to just a few mA, I would guess it could give you a bit of a shock if you came into contact with it. Maybe that is a reason why sockets are used as inputs.

Also, I like being able to say to green stage hands that the male is an output and the female is an input, just to match nature ;-)

Tim.
  Reply With Quote
Old 29th August 2004, 11:23 AM   #4
Bricolo is offline Bricolo  France
diyAudio Member
 
Bricolo's Avatar
 
Join Date: Nov 2002
Location: Grenoble, FR
__________________
Just remember: in theory there's no difference between theory and practice. But in practice it usually is quite a bit difference... Bob Pease
  Reply With Quote
Old 30th August 2004, 12:47 AM   #5
1audio is online now 1audio  United States
diyAudio Member
 
Join Date: Mar 2004
Location: SF Bay Area
Blog Entries: 3
The real reason I believe is the sensitive part is the input in this case and touching the pins on an exposed input (on a console for instance) would introduce hum.

The other reason I have heard is that the pins are the part of a connector that breaks, so its prefered to keep them on cables and sockets on chassis. Then a broken pin is fixed with a new cable. More relevant to VGA connectors but a common principle.

But the myths about this are like the stories on the origin of the BNC connector, they never end.
-Demian
__________________
Demian Martin
Product Design Services
  Reply With Quote
Old 30th August 2004, 01:43 AM   #6
imix500 is offline imix500  United States
Proud Union Member
diyAudio Member
 
imix500's Avatar
 
Join Date: Mar 2004
Location: Nashville, TN
It is also an electrical code in some states here in the US. Chicago, IL for instance specifically states that voltage carrying cable with temporary connectors must be non-contact... Female- Even for audio. They get a little crazy with this though, xlr's were sometimes used on 70.7v distributed speaker systems. Not so much now that we have lovely speakons and such. But have you ever plugged in a mic to a high level output? I've actually heard an sm58 act like a speaker this way.
  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
What components has to be present on the balanced inputs/outputs of an audio ADC/DAC? skpb Analog Line Level 3 12th October 2006 07:30 PM
Changing inputs and outputs on DH-200 jakelm3075 Solid State 4 30th March 2006 10:28 PM
designing inputs + outputs of electronic crossover stinkpot Parts 12 14th May 2005 05:07 PM
Buzz Noise on outputs with inputs attached akunec Chip Amps 3 7th March 2005 12:31 AM
FS: Gold Neutric Male and Female Cable ends PHilgeman Swap Meet 0 7th January 2004 02:03 PM


New To Site? Need Help?

All times are GMT. The time now is 07:30 AM.


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