After a long, long sleep: ML-335

My suggestion is to look inside first to make sure that it not too dusty or any dead fauna, insects etc inside. From personal experience I can tell that it’s very common to find some dead insects inside old equipment. Clean it if needed and live it ON for a couple of hours, not connected to anything except power, observe it, smell it for any burn. If everything looks fine then clean all the contacts with contact cleaner, make sure if the specifications are corresponding with your system and connect it to the system. Start to listen from lowest volume. 

Good point, @surfmuz , dust and wildlife can be a problem. But if it's been sitting in its box, perhaps less of an issue. I would not risk an exploding electrolytic in a high value classic, but YMMV.

Take it to a Mark Levinson factory service center. Its a very nice amp when running right.

Thanks again for all of your inputs. Some more background on this particular amp that it occurred to me I should’ve mentioned at the outset. 

This amp likely has very, very few hours on it. It was used with a a pair of B&W Matrix 800 Series Ones. He quickly switched to Jadis electronics (which I also have and need to revive) and never looked back. I’m surprised he kept the ML335 but he might’ve been thinking “bi-amp” but didn’t get around to it. 

All of his system is in storage, brought back from FL to the PNW and I’ve been wanting to integrate some of the components into my system until we move to a home I can set up the entire rig again. 

The idea of having clean, effortless power for my meager 1+1s is rather enticing!

Happy listening. 

@musicfan2349...the ML335 will make those Acoustats "jump up and boogie!"

I run a completely updated pair of 2+2's and was an Acoustat dealer for many years.  GREAT speakers!!!