The Onkyo Grand Integra M-508 is a powerhouse amplifier that combines classic elegance with high-fidelity performance. Its dual-mono construction and robust power delivery ensure pristine sound clarity and dynamic range. With a striking design and meticulous engineering, the M-508 delivers an unparalleled audio experience.

This amp was previously mounted in a rack, and doesn't come with the wood cheeks. 

• Cleaned control contacts
• Verified power output matches mfg spec of 200 watts per channel RMS
• Reattached left meter glass
• Verified input operation
• Verified operation of power meters
• The lights in this unit were previously replaced with white LED