McIntosh MC300 vs McIntosh MC7300 any differences?

I am looking to buy a used McIntosh MC300 or MC7300. From the information I can gather on the internet, these two amps are almost identical. the MC300 was manufactured between 1995-1998 & the MC7300 manfactured between 1991-1995. The specs on these two amps are identical even the weight of the amps are the same.
If any one has lisened to these two amps and made comparrisons, please share them with me. Thanks, Mike.