Question on DMM'ing Gains

Thread Tools
 
Search this Thread
 
  #1  
Old 09-15-2006 | 10:56 PM
F150Truck'in's Avatar
Thread Starter
|
Senior Member
Joined: Jul 2005
Posts: 1,557
Likes: 1
From: Chesterfield,Va.
Question on DMM'ing Gains

Do I DMM the gains with speaker hooked up or disconnected....

edesign audio fourm http://www.icixsound.com/vb/showthread.php?t=27819 said to set gains with speakers connected and a few other sites I looked at said disconnected...

also said to use 150hz test tones on other speaker and some say 1Khz

and one more thing, how does this apply to a bridged amp???
 

Last edited by F150Truck'in; 09-15-2006 at 11:28 PM.
  #2  
Old 09-16-2006 | 09:28 AM
dconder's Avatar
Senior Member
Joined: Jul 2005
Posts: 1,710
Likes: 0
From: Oklahoma
I am pretty sure you do not want speakers hooked up. If nothing else, sending a test tone thru them a 3/4 volume is going to be quite annoying when trying to set the gains. I saw somewhere and crap it if I can not remember where, that had a calculator for setting the gain.

Found it: http://www.subwoofertools.com/forum/setgain.asp


Seems to be a great how to.
 
  #3  
Old 09-16-2006 | 10:02 AM
F150Truck'in's Avatar
Thread Starter
|
Senior Member
Joined: Jul 2005
Posts: 1,557
Likes: 1
From: Chesterfield,Va.
Thanks Man, getting ready to swap out the EA4000 for a XA5000 in a few minites....
 
  #4  
Old 09-16-2006 | 01:35 PM
Bartak1's Avatar
Senior Member
Joined: Sep 2003
Posts: 6,760
Likes: 4
From: Nebraska
Yes, disconnect the speakers.

For your front/rear stage, it's usually suggested to use a 1000 Hz test tone, and for the subs, something like a 50 Hz tone.

As for bridging and setting the gains, just hook up your DMM to the amp bridged like you would the subwoofer. Use the wattage your amp does briged in the formula to find the voltage...
 
  #5  
Old 09-16-2006 | 08:11 PM
F150Truck'in's Avatar
Thread Starter
|
Senior Member
Joined: Jul 2005
Posts: 1,557
Likes: 1
From: Chesterfield,Va.
Not a happy camper at all..

Moved to a new post for better visibility
https://www.f150online.com/forums/sh...d.php?t=254064
 

Last edited by F150Truck'in; 09-17-2006 at 11:00 AM.



Quick Reply: Question on DMM'ing Gains



All times are GMT -4. The time now is 09:24 PM.