Marshall JCM 800 Model 2205 amplifier. The 1986 Marshall 2205 Half Stack is a powerful and versatile electric guitar amplifier designed for performance venues. With 4 speakers and a power output of 50W, this amplifier delivers clear and robust sound for guitarists. Featuring 2 channels and vacuum tube technology, the Marshall 2205 Half Stack offers a range of tones suitable for various musical styles. Complete with a footswitch and cover, this amplifier is a reliable choice for electric guitar players looking for a high-quality and iconic brand like Marshall.