Used Ksr ORTHOS 100 II Tube Guitar Amp Head

Upgrade your rig with this used KSR ORTHOS 100 II Tube Guitar Amp Head, delivering premium tone and performance in great condition. Handcrafted with unmatched precision, this 100-watt all-tube amp head features four channels—Clean, Crunch, and two Lead modes—offering a vast tonal range from crystal-clear cleans to saturated high-gain distortion. Powered by four KT88 power tubes and six 12AX7 preamp tubes, it provides extraordinary headroom, tight low end, and articulate response. The Orthos II includes MIDI switching, built-in noise gate, series/parallel effects loop, and a user-adjustable bias test port for easy tube maintenance. Its rugged chassis and intuitive control layout make it a top choice for touring pros and serious players alike. Whether you're recording, gigging, or perfecting your tone at home, this amp head is ready to perform. Don’t miss out on this flagship-quality tube amp at a fraction of the original price.