These were bought new from guitar center in 2005; currently discontinued. They honestly only have about 3 hours of "plugged-in" use time, then have been stored. I also bought a pair of Yamaha's at the same time that I liked better. One of them does have some candle damage, but does not affect anything mechanically (check the pics). I see them going for about $100... make me an offer.
Check the specs here, they have a few frequency flavor adjustments.
https://www.alesis.com/products/view/m1active-520
I was going to repurpose as TV audio, but never set it up. Cleaning out the studio...