Please read the profile comment section first. Please refrain from purchasing if you are outside the Kanto to Kansai region. Please inquire via comment before purchasing. [Power-on and sound output confirmed] FERNANDES BS-15 Product Description This is a FERNANDES BS-15 bass amplifier. This small amplifier was a huge hit from the early to mid-Heisei era. Apparently, the ones with blue panels are bass amplifiers. Sufficient volume output for practice and performance in your room.