This receiver is in exceptional condition and has been tested and cleaned inside and out. You may be asking yourself, why would I buy an old THX certified receiver? The answer is simple, they don’t make em like they used to, and this receiver has a feature rarely included anymore. Each of the five channels of amplification must be “jumpered” on the back from preamplifier output to main amplifier input. So this is essentially a very well made, great sounding 5-Channel THX certified amplifier that can be used to power a home theater, or any other configuration you can think of. Bi-Amplify a pair of speakers, use it for whole home audio integration, the sky’s the limit really. 110 watts x 5 into 8ohms of classic Marantz sound.