forzasenna

I have a pair of Heresy's I bought in about 75-76. I have been through 2 Yamaha audio systems, but have sworn never to part with my Heresy's (I even lucked out on a pair of half-price Synergy's which were display models to run in parallel). I would like to update them to modern specs but don't trust doing it myself and don't know what needs to be done or where I can have it done. They've never been touched in 26 years and still sound great. They were the raw burch, which I finished myself years ago.