They need room and a lot of good power. I wanted them some years back but didn’t have the means or the right amps for them. They were about $6K then, now 8 to 12, those are optimistic sellers.
There is a guy I know who can restore them and has worked a number of the biggest IRS (forgot name). The Betas are currently over priced. The speaker restorer is Bill Legal at Miller Sound.
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