I've owned many Mac amps, all of them 20 plus years old. I had a MC-2300 for example and sent it Mac after years of use for a 'tune up', as I figured it would need something. (Needed the 'mac' crate to ship the beast). Anyway, between the amp and C-29 preamp that went with it all that was done was a light bulb replacement. Both units exceeded spec and no repairs or upgrades were needed. This is very typical of Mac gear, and truthfully of most well made vintage gear. I thought for sure that they would re-cap something, but there was no reason too. Mac still services everything they build and their service department is first rate.
Listen to the amp, if it sounds good and had been cared for buy it.
Mac served me well for many years.
Listen to the amp, if it sounds good and had been cared for buy it.
Mac served me well for many years.