Difference between revisions of "Axe-Fx II FAQ"

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NOTE: The contents of this FAQ are being migrated to a dedicated Axe-Fx II Wiki.  
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The contents of this FAQ have been migrated to the soon-to-be-published Axe-Fx II Wiki.  
  
 
[http://forum.fractalaudio.com/members/yek.html Alexander van Engelen (Yek)]
 
[http://forum.fractalaudio.com/members/yek.html Alexander van Engelen (Yek)]
 
='''CONNECTING THE INPUT / INSTRUMENTS'''=
 
 
==How do I connect my guitar==
 
 
# The front panel input uses a proprietary circuit and dedicated A/D converter for low noise. Always use the front input for guitar, whether wired or wireless. [http://forum.fractalaudio.com/axe-fx-ii/35997-axe-fx-ii-technical-questions-thread-24.html#post491050 Source]
 
# The front input does not disable the rear input (different from Standard/Ultra). Use the menu to select either the front or the rear for Input 1. You can leave everything plugged in. [http://forum.fractalaudio.com/axe-fx-ii/35997-axe-fx-ii-technical-questions-thread-22.html#post490982 Source]
 
# The front input impedance is 1 Mohm, or less if Input Impdance is adjusted.
 
# All rear analog inputs are balanced like the onboard XLR outputs. The inputs detect whether the incoming signal is balanced or not.
 
# Do not use speaker cable to connect to the 1/4" inputs.
 
 
==How do I connect a wireless receiver==
 
 
The same way as with your guitar: to the front input, to take advantage of the front input's "special sauce" for noise reduction. The rear inputs (both 1 and 2) operate at line level, the front input operates at instrument level.
 
 
== How do I set the input level(s)==
 
 
Instead of knobs on the front panel, there are soft Input knobs in the I/O menu. The input levels are controlled via digitally-controlled potentiometer. These work globally, not per preset. The setting doesn't affect the input gain of the Amp and Drive blocks. [http://forum.fractalaudio.com/showthread.php?t=35997&p=490268&viewfull=1#post490268 Source1] [http://forum.fractalaudio.com/axe-fx-ii/36299-input-level-knob.html#post495033 Source2]
 
 
==Can I connect a music player==
 
 
Yes, connect the player to the USB slot. The signal will be mixed into the output signal. Adjust the volume on the player. [http://forum.fractalaudio.com/showthread.php?t=35997&p=490273&viewfull=1#post490273 Source]
 
 
='''CONNECTING THE OUTPUT / AMPLIFYING'''=
 
 
==How do I use it with FR amplification==
 
 
(tube / ss poweramp)
 
 
==How do I use it with my own preamp or amplifier (4CM)==
 
 
The AFXII supports unity gain when settings things up for 4CM: Four Cable Method. To obtain unity gain turn both Output knobs on the front panel fully up. [http://forum.fractalaudio.com/showthread.php?t=35997&p=490260&viewfull=1#post490260 Source]
 
 
==How do I set up two separate output feeds==
 
 
# FOH
 
# FR
 
# speaker cabinet
 
 
==How do I set the output levels and avoid clipping==
 
 
# The XLR outputs are line-level. [http://forum.fractalaudio.com/axe-fx-ii/35997-axe-fx-ii-technical-questions-thread-118.html#post499661 Source]
 
 
==How do I adjust the overall tone and volume level==
 
 
==How to make my tone cut better through the mix==
 
 
==How does it obtain unity gain==
 
 
The AFXII has digitally controlled potentiometers before and after the A/D and D/A converters. Therefore it knows what the input and output gains are. It compensates for these gains in the digital path. This allows "unity gain processing". If you set the Output Level knob to maximum you will get out what you put in (assuming the blocks have no gain). So if you were to make a preset with shunts from input to output and you put a 1V signal into the unit you would get 1V out. [http://forum.fractalaudio.com/showthread.php?t=35997&p=490260&viewfull=1#post490260 Source]
 

Latest revision as of 16:43, 20 June 2011

The contents of this FAQ have been migrated to the soon-to-be-published Axe-Fx II Wiki.

Alexander van Engelen (Yek)