published data, where freq. response graphs showed they were flat down to 1kHz., then start to roll off. I'm surprised as many complaints have been posted regarding poor HF performance with 800 series Altecs that you could recommend them. "Uncomped" 902's w/ 34647 'phrams run out to 14kHz or better. As I stated, his linearity will be better, and distortion lower, if he crosses at 800Hz. And 902's have superior HF extension. I was trying to HELP HIM AVOID being sucked into the "vintage is always better trap" where he will buy a beat set of mismatched drivers, send them off to be remagged, have them still suck, buy new 'phrams, and lose interest eventually. Or obtain his 825/828 boxes, then find out he needs a friggin' subwoofer too...Sam