Cables and adapters for Fractal Audio devices
From Axe-Fx II Wiki
Where to buy to cables and adapters
- Fractal Audio: HumBuster and TRS-to-TRS cables and FASLINK Adapters.
- BTPA cables and other accessories for Fractal Audio gear.
Balanced and unbalanced audio
- Humbuster cables fight ground loops and reduce noise on specific Fractal Audio products. The TRS end ("stereo") goes into the Fractal Audio device. The TS end ("mono") goes into the other equipment.
- Humbuster cables can be used with all 1/4" outputs on the Axe-Fx II, FX8 and AX8.
- Cliff's comments:
- "If you pull the cable out halfway it will get twice as loud. This is due to the humbuster output design. Don't pull the cable out halfway." source
- "The Humbuster outputs sense the ground noise at the far end of the cable and cancel it out. Remember there is no such thing as a wire with zero impedance." source
- "The 1/4" outputs have a "remote ground sense" feature. You take a TRS cable and on one end you put a TRS plug and on the other end you put a regular TS plug. On the TS end you tie the ring conductor to ground. Plug the TRS end into the Axe-Fx II. The ground noise of the attached equipment is sensed and added to the output signal thereby cancelling the common-mode noise (hum). This is especially useful when doing the 4CM since that's when you usually get the worst ground loops."
- "Won't do anything for pickup hum. It just fights ground loops." source
- "Humbuster cables do not eliminate noise. Humbuster cables in conjunction with Humbuster outputs can significantly reduce hum due to ground loops. The outputs of Fractal Audio products have a special circuit that, in conjunction with a Humbuster cable, senses the difference in ground potential between the devices and cancels the difference thereby reducing hum. It's certainly not snake oil and you can find numerous testimonials on our forum that speak for the effectiveness. source
- Buy Humbuster cables directly from Fractal Audio.
- Wicked Wiki thread.
TRS-to-TRS cables for expression pedals
FASLINK cabling and adapters
- FASLINK is a proprietary Fractal Audio communications link between the Axe-Fx II and MFC-101, featuring bi-directional MIDI and power over a standard XLR microphone cable. Cable runs of hundreds of feet are possible. XLR cables are more flexible and robust than Ethernet cables.
- Support for FASLINK cabling:
- Axe-Fx II XL/XL+ and MFC-101 Mark III models have built-in FASLINK support.
- Older Axe-Fx II models (Mark I, Mark II) and MFC-101 models (Mark I, Mark II) require FASLINK adapters XA-1 and XA-2 to convert between XLR and Ethernet/Ethercon. These adapters are "active" (source). They can be bought directly from Fractal Audio's shop.
- Enabling FASLINK:
- Axe-Fx II: turn on FASLINK in the I/O menu.
- MFC-101: select the correct port in the MFC settings. Do not connect a power supply to the MFC-101 when using FASLINK.
- FASLINK documentation:
- Cliff's comments:
- "The FASLINK port is protected against shorts." source
- Cliff's comments about speaker wire:
- "The Axe-Fx is designed to recreate the signal at the speaker jack of a tube amp and it does this tremendously well. If I do a Tone Match to the output of the amp vs. the model it's almost always nearly a perfectly flat line. So today I was playing around and did a quick tone match to one of my Plexis and then a Suhr Badger and the results showed a significant mid-scoop (2-3 dB). I was puzzled. Had I messed something up in the new firmware? I repeated the tone match using a DI off the speaker jack and the result was a perfectly flat line. Then I realized that the difference was due to this 30 ft speaker cable I was using because the speaker cab was remote from the amp. Just a bit surprised that that little resistance could have that much effect. Fortunately the new Cab-Lab addresses all this by allowing you to capture reference IRs and we've included reference IRs along with our latest Cab-Pack. To double-check I then captured a reference IR off the speaker and corrected the IR using the new Cab-Lab and viola, perfectly flat." source
- "There's a big difference between a long cable between your guitar and amp and a long speaker cord. A long instrument cord loads your guitar's pickups with a reactive load that's mostly capacitive. This changes the resonant frequency of the pickups and rolls off the highs. A long speaker cord increases the resistance between the amp and the speaker which decreases the damping factor. A lower damping factor means the response follows the impedance curve of the speaker more than a high damping factor." source