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Sub out configuration


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swede 
Copper - Posts: 125
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Joined: July 31, 2004
Location: United States
Posted: August 06, 2005 at 11:43 PM / IP Logged  
Ok....just had a dumba-- attack and something doesn't look right, so here's a really stupid question:
I have 2 amps, a 4ch and the other a 2ch bridged for the sub. I patch the RCAs from the 4ch output to the 2ch, yes?
Ok, now.....this is the first head unit I've ever had with sub-out controls, so do I go directly from the sub out to the 2ch - bypassing the 4ch altogether?
Subtlety is EVERYTHING.
DYohn 
Moderator - Posts: 10,741
Moderator spaceThis member has made a donation to the12volt.com. Click here for more info.spaceThis member has been recognized as an authority in Electrical Theory. Click here for more info.spaceThis member has been recognized as an authority in Mobile Audio and Video. Click here for more info.spacespace
Joined: April 22, 2003
Location: Arizona, United States
Posted: August 06, 2005 at 11:46 PM / IP Logged  
Yes, that's right.  And don't forget to reset your gain after you connect the sub amp directly to the HU.
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swede 
Copper - Posts: 125
Copper spacespace
Joined: July 31, 2004
Location: United States
Posted: August 07, 2005 at 10:31 AM / IP Logged  
Stupid question #2: is there a science to setting the gains on the amps? Or is it just by ear?
Thanks very much too , btw.
Sub out configuration -- posted image.
Subtlety is EVERYTHING.
geepherder 
Platinum - Posts: 3,668
Platinum spaceThis member consistently provides reliable informationspace
Joined: October 27, 2003
Posted: August 07, 2005 at 1:28 PM / IP Logged  

It's not a dumb question.  It's better to ask now than to mess something up and feel stupid about that.  Most people just set gains by ear, while others use a multimeter or an oscilliscope.  However it's done, when the gain controls are set properly, they yield the best signal to noise ratio you can get with the equipment.

If you do a search in here on gain setting, you'll run across plenty of threads to get you started.

My ex once told me I have a perfect face for radio.

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