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ULooper User Manual
Introduction
ULooper is the world's first dedicated looper pedal for guitar amps like Positive Grid Spark, Boss Katana,
Yamaha THR, etc., redefining the looping experience.
Most popular digital amps lack an FX loop interface, forcing traditional loopers to connect via the guitar
input. This means if you record a clean loop and then switch to distortion for soloing, the clean loop
also becomes distorted.
Unlike traditional Loopers, ULooper connects to amps via USB, ensuring your looped sound remains
unchanged even when changing your amp's tones and presets.
Additionally, it adds a Line Out feature to your amp, enabling easy connections to external speakers
without muting the amp's own speaker, unlike the headphone output, which does.
Compatible Amps
Positive Grid Spark: Spark 40, Spark MINI, Spark Go, Spark Live, Spark 2.
Boss KATANA: KATANA 50 MkI & MkII & Gen3 and higher models, KATANA AIR & EX, KATANA GO.
Yamaha THR-II: THR10II, THR10II-WL, THR30II, THR30IIA.
Fender Mustang LT: LT25, LT40S, LT50
Marshall Code: Code 25, Code 50, Code 100.
(Firmware v1.2.5)
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Summary of Contents for XSONIC ULooper
- Page 1 (Firmware v1.2.5) Introduction ULooper is the world's first dedicated looper pedal for guitar amps like Positive Grid Spark, Boss Katana, Yamaha THR, etc., redefining the looping experience. Most popular digital amps lack an FX loop interface, forcing traditional loopers to connect via the guitar input.
- Page 2 Interface...
- Page 3 USB functionality. Connection Connect your amplifier using the ULooper's Amp port. Power the device through the 5V or 9V port. A successful connection is indicated by a solid blue. Note: If you're using a KATANA 50 and higher models, or a Fender LT, you'll need an additional 6.35mm (1/4") to 3.5mm (1/8") TRS stereo cable for connection.
- Page 4 Connection for Spark, THR, KATANA AIR & EX & GO, and Code...
- Page 5 Loop & LineOut Mode Setting (KATANA 50 and Fender LT Only) When using ULooper's Line Out port with KATANA 50 and higher or Fender LT, you can connect either to the amp's AUX input or to external speakers/PA systems. If connected to the amp's AUX, Loop Mode functions as usual, as shown in the image above.
- Page 6 By default, ULooper is set to Loop Mode: 1. Connect ULooper to power, ensuring it is not connected to the amp's USB. The purple LED will light 2. Insert a 6.35mm (1/4") cable into ULooper's Line Out port.
- Page 7 (Spark Only) No Loop Sound from Amp If the ULooper's LED appears normal yet there's no loop sound from the amp, verify the settings of ULooper's Level knob and Spark's Music knob. Should it remain silent, consider powering off and...
- Page 8 Line Out for monitoring during overdubbing is recommended, as it bypasses this latency problem. Although this latency originates from Spark, we can optimize it on the ULooper side. We may release a firmware update in the future to address this.
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Questions and answers
I want to add a volume pedal to control the volume of my loops. I **** going through a Spark 2 amp. Where should I hook up the volume pedal in this chain?