BOSS WAZA-AIR Ver.1.20 adds EV-1-WL pedal support
July 1, 2022 · 1 sources
BOSS released system program Ver.1.20 for its WAZA-AIR personal guitar amplifier in July 2022, according to the update history on the company's support page1. The update adds support for the EV-1-WL wireless MIDI expression pedal and lets players turn off movement of the sonic image by the gyro sensor1.
With Ver.1.20 installed alongside BOSS TONE STUDIO for WAZA-AIR version 1.1.0 or later, the EV-1-WL can control PEDAL WAH and FOOT VOLUME, BOSS says1. The CTL1 and CTL2 jacks on the EV-1-WL can be used to switch patches, turn effects on and off, and return panning to its default state, and the app can set the functions of the pedal and of CTL1 and CTL21. The app is required for these functions1.
The update also makes it possible to fix and reproduce the position of the spatial image when POSITION TYPE is set to "STATIC" or "STAGE"1.
"The EV-1-WL wireless MIDI expression pedal is now supported."
The update requires the WAZA-AIR unit, the micro USB cable included with it, and a Windows or Mac computer with a USB 2.0/3.0 port1. BOSS says the process takes about 30 seconds once started, and warns against turning the unit off during the update1. The current version can be checked by holding the Up/Down buttons while turning the power on and reading the blink pattern of the guitar wireless and Bluetooth indicators; Ver.1.20 shows one blink from the white indicator and five from the blue1.
BOSS's page also lists later releases: Ver.1.30 in November 2022 added support for the FS-1-WL wireless foot switch, Ver.1.31 in October 2025 improved gyro sensor tracking, and Ver.1.32 in June 2026 was a version number change with no effect on specifications1.