This used Gallien-Krueger 800RB Bass Amp Head is in Good condition with normal signs of handling and use.  The Gallien-Krueger 800RB is a classic solid-state bass amplifier head known for its innovative bi-amp design, which features two separate amplifiers: one for low frequencies (approximately 300 watts) and one for high frequencies (around 100 watts). This allows for either bi-amping with separate speakers or running in full-range mode with an adjustable crossover frequency, giving great tonal flexibility.