Author: AFT-Chris

Can I use a Cat 5e Cable instead of a Cat 5 Cable?

Short answer: Yes. Cat 5e is the current standard for ethernet cables supporting speeds up to 1000 Mbps and has basically replaced Cat 5 cables. As long as the cable is an ethernet cable with RJ45 connectors and NOT a cross-over type cable, a Cat 5e cable will work the same as a Cat 5 with your MFC-101 and Axe-Fx II. See this post to read more about ethernet cables: Ethernet vs etherCON – Cat 5 vs Cat 5e vs Cat...

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Can I use a Cat 6 Cable instead of a Cat 5 Cable?

Short answer: Yes. As long as the cable is an ethernet cable with RJ45 connectors and NOT a cross-over type cable, a Cat 6 cable will work the same as a Cat 5 (or Cat 5e) with your MFC-101 and Axe-Fx II. Cat 6 cables are generally more rigid and less flexible than Cat 5 cables due to an extra “spline” separator and usually thicker wire, so they may not lay as neatly on the ground as a Cat 5. See this post to read more about ethernet cables: Ethernet vs etherCON – Cat 5 vs Cat 5e vs Cat 6 See this thread on the Fractal Audio Forum: http://forum.fractalaudio.com/mfc-discussion/95407-cat-6-ethernet-cable-mfc.html#post1142426...

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Why does it say "Excess CPU Usage!"? Why is there a crackling noise too?

Like most computers, the Axe-Fx has a limited amount of CPU or processing power. CPU is used when blocks are added to presets. Different blocks use different amounts of CPU, and within the same block different “Types” or settings can also use different amounts. There are actually two TigerSHARC processors in the Axe-Fx II: one is dedicated to the Amp blocks, and the other handles all other blocks. A completely blank preset uses about 9% CPU – this accounts for the Display and a few other background processes. Adding a single Amp block raises the CPU only to about 12%. Compare this to a Reverb block which can raise the CPU to about 20%. The Axe-Fx II functions normally till about 90-92%. At that point, the CPU is being overloaded, having to process too many things at once. It’s usually best to try to not go above 90%. The Axe-Fx is programmed to prioritize audio at that point, so the display may seem to lag, preset changes may become slow, and there may also be crackle’s and pops in the audio signal. A warning will flash on the screen displaying “Excess CPU Usage! Reduce Load!” This means that somehow you must reduce the CPU usage in your preset. There are many ways to do this, but one of the easiest is to change Cab blocks from Stereo or Ultra...

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When do I have to "Update Amps Defaults" "Update Amps All Prsts" or "Reset the Amp Block"?

UPDATE 4-6-15: Firmware 18.06 has removed the “Update Amps All Prsts” (Update Amps in All Presets) function mentioned below. New Axe-Fx II firmware usually bring new features and improvements. It can also change the way Amps are modeled, therefore changing what the controls in the Amp block actually do. For example, in firmware A, the Amp block Bass knob set to 6 may sound “very bassy.” But firmware B might change how that knob works and what it controls, and therefore a value of 7.5 in firmware B may equate to what was a value of 6 in firmware A. The default settings for Advanced Parameters for different Amp types/models may also be changed with new firmware versions. In a hypothetical example, the default Negative Feedback setting for Amp type 59 Bassguy may be 4.50 in firmware A, but new research and improvements in modeling techniques might suggest that the default setting should instead be 5.20, therefore firmware B would set that default when an Amp is selected for the first time. Before moving on, it is important to note that generally speaking, if it sounds good to you, it doesn’t matter what the numbers, values, or settings are. Following the previous example, the old Negative Feedback setting was 4.50, but the new default is 5.20. If it sounds and feels good with the 4.50 setting, there is nothing “wrong,”...

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Where can I find details about the _____ feature in the Axe-Fx?

In addition to the User Manual and Release Notes (RTFRN), the Axe-Fx II Wiki is the best place for details, tips and tricks and features of the Axe-Fx II.  Much of the information is compiled from the Fractal Audio forum, with many contributions from Cliff Chase himself, creator of the Axe-Fx. Forum user Yek created and maintains the Wiki, with help from M@ and SC09. A very helpful section is Yek’s How To’s available here: http://wiki.fractalaudio.com/index.php?title=Yeks_How_Tos Another helpful page is this post on the Fractal Audio...

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