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Play What You Hear Guitar Course


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  #1  
Old 08-08-2010, 10:07 AM
 
Join Date: Mar 2010
Location: Lexington originally, Louisville for school
Posts: 8
Default Hooking amp up to computer

Obviously, you could just mic an amp, run it into an audio interface, into your computer and have a DAW like Cubase or Reaper to manage, record, etc. But I was curious how I could hook up an amp head to a computer.

My head has an Xlr out as well as 1/4" jacks for speakers(no brainer). I know i could go direct into a audio interface via Xlr, but i still would need a speaker load. I don't want to hook up my cab because it would be way to loud for me to record.

How would I accomplish this set up?
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  #2  
Old 08-08-2010, 11:15 AM
 
Join Date: Jan 2010
Location: Wexford, Ireland
Posts: 1,056
Default

What is the XLR? A recording out? If so-is it balanced or wired unbalanced? You may get ground loop problems, so make sure the cable you use is wired correctly--look it up in the manual. But, in any case-you'll need to buy a dummy load if you want to run the head without speakers.
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  #3  
Old 08-08-2010, 10:40 PM
 
Join Date: May 2009
Posts: 383
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One thing I used years ago was a 15-ohm, 15-watt power resistor from Radio Shack - it was a square ceramic thing. Used that as the speaker load and tapped it in parallel - worked great. I used the same thing to feed movie projector sound into an auditorium PA system. You do need to be careful if your amp puts out more than 15 watts, but if you can turn the amp down to about the same volume as someone talking (about 1/2 watt output or so) it should work fine.
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  #4  
Old 08-09-2010, 04:57 PM
 
Join Date: Mar 2010
Location: Lexington originally, Louisville for school
Posts: 8
Default Ok, so....

Well, i have a Carvin x100b head. It's got a Balanced XLR output and has a selectable 16, 8 ,or 4 ohm speaker switch as well as an RMS power switch that does 100, 50 or 25 watts. The speaker outs are wired parallel

The Manual mentions that the XLR out can be connected to power amps or mixers with out the need for a direct box. It also mentions like you two have mentioned that i would need a dummy load.

So, i'll assume that it functions as a recording out. Now the questions are:

1. I obviously need a dummy load, what are your recommendations. The radio shack options sounds alot cheaper than buying one of those thd hot plates
2. Will i really need a mixer? Or can i go directly into an audio interface?
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  #5  
Old 08-09-2010, 06:12 PM
 
Join Date: Jan 2010
Location: Wexford, Ireland
Posts: 1,056
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There's lots on the net on build your own-here's 1
Audio Dummy Load Project Kit


2/Depends on what the XLR puts out. It "should" be line level, so set your interface to that first.
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