Welcome and thank you purchasing this ROXi microphone
preamp pedal. This little box is the culmination of many
decades of us rening our mic and instrument preamps, and
then packing it all into a single, rugged stage box. Even though
it’s a compact footpedal, we cut no corners designing and
building this unit. As a mic preamp and EQ, it will compete with
any full size studio gear and help any source you plug into it
sound incredible.
Our hope is that the ROXi encourages you to be wildly
creative and play your very best. While it’s a fairly simple bit of
hardware, there are some subtle and cool features that are best
understood by reading this manual. Enjoy!
Have fun!
- The Grace Design Team
2 Safety Information
• Indoor use only
• Ordinary Protection: This equipment should not be
exposed to dripping or splashing.
• Avoid placing objects lled with liquids, such as vases or
glasses, on this equipment.
• Class I Equipment (grounded type)
• Electrical rating: 100-240V~ 50-60Hz 10W
• Mains supply voltage uctuations are not to exceed ±10%
of the nominal supply voltage.
• Pollution Degree 2
• Installation (Over voltage) Category II for transient
overvoltages.
• Maximum Relative Humidity: <80%
• Operation temperature range: 10 °C to 40 °C
• Storage and transportation temperature
range –40 °C to 70 °C
• Maximum altitude: 3000m (9843 ft)
• Equipment suitable for continuous operation
• Weight: 2.2lbs
TABLE OF CONTENTS
1 Welcome 2
2 Safety Information 2
3 Safety Marking Symbols 3
4 Features 3
5 Top Panel Controls and Features 4
6 Back Panel Controls and Features 5
7 Side Panel Controls and Features 5
8 Connecting ROXi to Stu 6
8.1 XLR MIC / ¼” line Combo input 6
8.2 FX SEND and RETURN 6
8.3 Amp Out 6
8.4 Tuner Output 6
8.5 DI Output 6
8.6 100-240VAC Power Input 6
8.7 9V @ 500mA DC POWER OUTPUT 6
9 Operation 6
9.1 Where to put ROXi? 6
9.2 Microphone / line input 6
9.3 Setting the Gain 6
9.4 Phase Reverse 7
9.5 12V Power 7
9.6 Boost control 7
9.7 Boost Trim Function 7
9.8 FX Dry / Wet Control 7
9.9 AMP level control 7
9.10 Filtering and EQ 7
9.11 Output controls 8
9.12 Footswitch Controls 9
9.13 Side Panel Controls 9
10 Diagrams 9
10.1 Block Diagram 9
10.2 Connection Diagram 10
10.3 Adjusting Internal Jumpers 11
10.4 Internal Jumper Locations 12
11 Specications 13
12 Cleaning and Maintenance 14
13 Warranty 14
14 Manual Revisions 15
