Setting up RIFF with BIAS FX 2 (Desktop) (Video Tutorial)

Video Tutorial



Setting up RIFF with BIAS FX 2 (Desktop)

1. Use a standard 1/4" guitar cable to plug your guitar into RIFF.



2. Connect RIFF to your computer or mobile device with the supplied micro-USB cable.



3. Connect your headphones to the headphone jack, or studio monitors (speakers) to the output jack. 

*The 1 output jack on RIFF is stereo. In order to connect RIFF to stereo speakers, use a 1/4 TRS Male to Dual XLR Male Y-Cable or 1/4 TRS Male to Dual TS Male Y-Cable (not included).


4. Open BIAS FX 2 standalone application (which you can use without running a DAW. 

*For further information on how to download your copy of BIAS FX 2, please visit How to Download, Install, and Activate Positive Grid Desktop Products.

*For Windows users, please install the RIFF Windows driver before launching BIAS FX 2.


5. Open Audio Setting from the settings menu (top-right corner). 


6. Set all the settings according to the screenshots below:


  • Windows
    • Audio Driver Type: ASIO (Do NOT use DirectSound or Windows Audio as it'll result in huge latency)
    • Input & Output: Positive Grid USB Audio Device
    • We recommend using sample rate = 44.1k, and buffer size = 512 samples as the starting point.



  • Mac
    • Input & Output: Positive Grid RIFF
    • We recommend using sample rate = 44.1k, and buffer size = 512 samples as the starting point.
    • Also, make sure you allow BIAS FX 2 to access the microphone in Mac -> System Preferences -> Security & Privacy -> Privacy -> Microphone (see instruction).



7. Turn up the INPUT on RIFF, and you should be seeing the incoming signal in BIAS FX 2 on the input volume meter.



8. Turn up the OUTPUT on RIFF, and you should be seeing the output signal both on RIFF and in BIAS FX 2, as well as hearing your guitar sound through your headphones/speakers.


No sound. How to fix it?

There are different scenarios that might lead to no audible sound: 


1. RIFF’s output is off or too low

-> Turn it up.


2. RIFF’s output is not connected to any speaker/headphone

-> Check the connection & make sure the speakers are powered and turned on.


3. RIFF is not selected as the audio device in BIAS FX 2 / DAW

-> Go to “Audio Setting” of the software and make sure RIFF is selected as both input and output.


4. RIFF is not successfully connected and is not detected by the computer

-> Reconnect RIFF (directly to the computer and not via any USB hub). For Windows users, make sure the driver is installed.

For further troubleshooting, please visit RIFF (USB Device) Not Recognized in Windows.


5. There’s no input signal into RIFF

-> Check the guitar (volume knob is turned up) and guitar cable (fully functional), and make sure the input gain on RIFF is turned up so you can read the input signal on RIFF’s screen, as well as the input volume meter in BIAS FX 2. 



For further details on RIFF's integrated features with BIAS FX 2, please visit the links below:


Tone Mode

Custom Knob

Direct Monitor


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