These mains adapters have been tested by an employee who is a musician as well as other guitarists using Boss stomp pedals.
AC Mains Adapter Power Supply for Boss / Roland PEDAL etc PSU 9V 9 Volt PSA-240
Replacement Adapter Power Supply for Boss RC-30 Loop Station Bundle
9V Guitar Effects Pedal AC Adapter Power Supply, 2-3-4-5-6-8-10 Way Daisy Cable
PSU-4 16V AC/DC Adapter Power Supply for Blackstar ID Core 40 / Beam/Acoustic Core Stereo 40 V2 V3 Guitar Amp 40 20 Watt GLT-888 ADP0101600 TFB-BT1 Amplification USED004000
power adapter for Arbiter XTD-102 Electronic Drum kit mains power supply
DC 9.5v 9.5 Volt Power Supply Mains Adapter for Casio CTK-240 Keyboard Pianos +
