Oregon Tubes

I have two pairs of Klipsch Forte originals that are in mint condition. I have an opportunity to trade for a decent pair of La Scalas, some dings and scratches, but presentable. Looking for your opinion guys?

I have been a Klipsch die hard fan for many years. I recently purchased a pair of KSP-300. I hooked them up and received a very loud hum, this before speaker wires were attached. Klipsch Technical has thrown their arms up, telling me that the amplifiers are worn out? I really didn't expect that Klipsch would make a speaker with an inferior amplifier. When Paul was still around, this issue would have been corrected, no questions asked. Is Klipsch going down hill on their products? These two KSP-300 speakers have approximetly 50 hours each, barely broke in?

I have not been able to find any information on these Speakers for sale. Advertised as: Klipsch loaded folded horn loud speakers, 12 driver, mid and tweeter horns. Vintage 70's era, collectors item??