Positive Grid RIFF User Manual

OUTPUT JACK
This stereo jack provides a mix of the audio being
played back along with the input signal – depending
on the input volume set by the RIFF DIRECT parameter.
Use the appropriate cabling to connect this output to
your monitoring system, if desired. This signal is
identical to the jack signal.
USB
The USB connection establishes a two-way audio
connection between RIFF and your computer, and also
provides RIFF with the power it needs. The display will
indicate RIFF is connected and ready to use.
(Mac) (PC)
RIFF LOWER END PANEL
RIFF UPPER END PANEL
Meet RIFF.
Your RIFF is a handy recording interface designed specifically for the guitarist and
bassist. It connects directly to your PC, Mac, or Apple iOS device via USB. The design
is intuitive and uncluttered, providing quick access to all features. Extras include direct
signal monitoring that allows latency-free recording. Plus, you’ll even find a variety of
preset guitar tones. So let’s get started.
RIFF | Go! Guide
Getting Connected.
HEADPHONE OUTPUT
The audio signal present at this jack is identical to the
OUTPUT jack signal. This 3.5mm (1/8") stereo jack can
accommodate headphones rated from 16 Ohms to 64
Ohms.
INPUT
Plug your guitar or bass directly into this jack.
Selecting RIFF as the Input on your
Computer.
In general, if you connect RIFF to your computer before
launching your recording software, it will automatically
recognize RIFF and select it as the audio input source. If
not, you will have to choose it manually. For Mac, open
System Settings and select Sound. Click on the Input tab
and choose RIFF (Positive Grid). PC users will need to
open the Control Panels and select Sound. Click on the
Recording (input) tab and select RIFF (Positive Grid).
Selecting RIFF as the Output.
Depending on your setup, you may or may not want to use RIFF as the output device. If you have an existing
computer music rig that is already connected to your studio monitoring system, you may want to continue to use
that system. Using RIFF is ideal if you are working with headphones or a personal monitoring system.

Positive Grid RIFF Specifications

General

Type	Guitar Amplifier
Speaker Size	6.5 inches
Connectivity	Bluetooth, USB
Headphone Output	Yes
Software Included	BIAS FX 2 LE
Inputs	1 x 1/4" (instrument)
Outputs	Headphone Output

Summary

RIFF Overview and Connectivity

Output Jack

Stereo jack providing a mix of playback and input audio for monitoring.

USB Connection

Connects RIFF to PC/Mac/iOS for audio and power; indicates readiness.

Headphone Output

3.5mm stereo jack for headphones, mirroring the main output signal.

Instrument Input

Direct jack for plugging in your guitar or bass.

Configure RIFF Audio Settings

Set as Computer Input

Steps to set RIFF as the audio input source on Mac and PC.

Set as Computer Output

Guidance on using RIFF for audio output, ideal for headphones.

Using RIFF Controls and Parameters

Display and Indicator Lights

Explanation of the display screen elements and indicator lights (CLIP, DIRECT, TONE).

Control Knob Operation

How to navigate parameters (INPUT, OUTPUT, DIRECT, TONE) using the control knob.

Parameter Adjustments

Details on adjusting Input, Output, Direct mix, and Tone presets.