Joseph Chow is a good source for upgrades. I believe he also has a Mark Levinson amp in his system. Also, remember that most electronics that are 20 years old or more probably need to have their electrolytic caps replaced due to the old caps life expectancy running out. Electrolytics have also improved a bit over the last 20 years, so if done right, your amp should come out better than when new. If you like the Levinson sound now, a little refurbishing and upgrading will be a very cost-effective approach versus buying another amp.
Refurbish a classic amp or replace it?
I have a Mark Levinson ML3 amplifier that is over 20 years old. It sounds great in my system and I am considering whether to have it refurbished/upgraded. I spoke to one place that only does service and upgrades and was told not to do it and that I should sell the ML3 and use the money (plus a lot more)to buy a new amp instead. If I buy a new amp, it would probably be a Pass Labs. I would like to hear from other members who have had similar experiences. Also, I would appreciate recommendations for where to have the ML3 refurbished/upgraded if I decide to go that route. Thanks