First post and looking for some direction. I just came across a Pye PF91. My research points to a 1954 era unit. It came with the PF91A unit as well as a Gerrard phono player. I'm looking for help on the amp. As this is my first venture into vintage, I'd like to know more about the unit. It seems it has a lot of praise heaped on it. What's special about it? Will I need another to match? What are they worth? Need a solid tech to look at it. Are there shops (I'm in Toronto, Canada) that others might be able to steer me towards? Thanks in advance.