This is a full tube bass amplifier from the French manufacturer "VANFLET." Despite being very lightweight at 9.5kg, it boasts a full tube 100W specification. The preamp section uses 12AU7 x 1 and 12AX7 x 2, and the power amp section uses 6550 x 2, for a total of 5 vacuum tubes. The controls are a simple configuration of gain, bass, mid, treble, and master, and the thick sound unique to tube amplifiers is appealing. The aluminum casing and clean design are also impressive. As a full tube bass amplifier, there are no other competitors that are both compact and have an output level suitable for live performances, which I believe is also a strength. The manufacturer seems to have ceased operations, and there is almost no domestic distribution, making this a very rare piece. Used several times in live performances after acquisition. I am selling it due to equipment replacement. A dedicated case is included.