Again thanks for the reply, I appreciate you working with me on this problem. I agree with you completely, if I can determine where the problem is I can minimize my shipping and repair concerns. What I have done is disconnect the speaker wire at the speaker post and switched the connections left wire reconnected to the right speaker and right to left. The problem in the left speaker continued. I repeated this same process at the mono amps to confirm the same situation, and still no change in the response from the left speaker. The right speaker in each of these changes has performed as advertised, with great sound. I changed the input from the preamp to the mono amps as well as checked different input sources to make sure there was no issue with the signal in the electronics, and the electronics are all good. As a side note, I put my spare Tannoy speaker on the line and everything came through crystal clear. Now, this all being said, the problem is clearly in the speaker.
The performance from the speaker is so weak, it is hard to say yes the woofers are performing at their proper level as there so little sound coming out of the speaker. What little sound that is coming from the speaker is coming from the woofer. If I turn the volume up really high, something I would never do under normal circumstances, I still do not get a clear sound at all. I would expect the woofers to push a lot of air with the volume up, but that is not happening and there is absolutely nothing happening from the ribbon.