Fully functional! PEAVEY AUDITION20, made in the USA!! This is the item for sale. It's something that came up during a clear-out. Based on the serial number, this is a 1983 model, an American-made vintage high-gain drive amplifier from about 40 years ago, before Yamaha became the import agent. Dimensions are approximately 34cm (height) x 36cm (width) x 19cm (depth), and despite its small size, it has considerable power. By pulling the POST knob, you can switch between drive/clean, and by pulling the HIGH knob, you can switch the thickness of the THICK sound. It allows for a wide range of sound creation. The op-amp uses a rare Texas Instruments RC4558P Silver IC. There is some scratchiness in the GAIN POST, but it shouldn't occur during performance once the setting is decided. Also, since it's made in the USA, it's 120V, but it can be used without problems on 100V. I did some basic rust removal on the metal parts, as the rust was severe. I have confirmed basic power-up and sound output. 1983, made in the USA Voltage: 120V Frequency: 60Hz Power Consumption: 40W Output: 20 Watts RMS: 4Ω SN: 6A-02493597 Control: GAIN PRE, GAIN POST FULL SAT, EQ LOW, EQ MID, EQ HIGH PULL THICK INPUT JACK, HEAD-PHONES, PREAMP OUT Power-SW ■Weight: 7.3 kg