Tubes with Infinity IRS Betas

I like the RSIIa/bs, impressive sound and looks in a single tower configuration. Do you remember what you paid for them? I have a buddy right now who tracked down a good used pair of RS11s, they are nice but not the same without the emims like you had.A few years later (1987) is when I picked up my IRS Deltas, at the time they were $9500 Cdn, I traded in my Kappa 9s and had to sell off a car I was building to help pay for them. I still regret not hanging onto the Deltas, parted with them in 1990 when I moved to another province for work.

PLEASE  GIVE THE BEST RECOMENDATION AMPLIFIER FOR THIS SPEAKERS IRS BETA THANKS YOU

We've had several customers with Betas. They used our more powerful amps- so despite the lower impedances they don't seem that crazy to drive. 200 watts seems to do the job.