That's cool! 
 
Your Uncle and I were comparing our K1000s. I think he liked them on the β22, and Shelly's Woo 300B amp. Her 300B didn't have enough power to drive the K1000 to good volume, but the bass was insane. I'm now officially interested in a 300B amp to contrast with my β22. 
 
We'll see how that pans out.