OK all you Infinity RS 1A/1B Beta speaker owners..

You are correct about the need for caps on the RS 1 and 1 B, you can have caps installed, but I would not recommend this. The real deal is to rebuild the unit to modern specs. I would start with a different unit and have it redesigned, or rebuild the unit from scratch. I would use XLRs rather than going single ended. You can buy these speakers at bargan prices today, but keep in mind they require top quality amplifiers and something like Brytson 7Bs for the bass and a Krell KSA 250, or Threshold T 400 would be great. For that money, it only makes sense not to have a dated electronic crossover/ bass enhancer in the path?

Do you (ladycharnet) know of a real good tech (tri-state area NYC) that can do this type of work? I would love to put in a new power supply into my servo crossover.

hello

I have just get some 1B 100% like new for a damm good price , I will drive the top whit Mesa Baron 5881 , but I dont no what the best will be for the base to A good price , I will like to drive whit 2 Plinius SA100mrk3 can the sa100 drive the base good

Do anyone could send me a user manual (pdf)? I bought a pr used and having problem with the crossover. Thankx.

Dump the infinity crossover and use a Bryston 10B full range crossover. The difference is outstanding. If you decide to go this way just me know and I will give you my preferred crossover and gain points.