So I took a minute this morning and connected the speaker wires from my FR speaker to the sub. I still did not hear anything at first. I turned the volume on the sub to max and heard a little bit of noise. Disconnected speaker cable and reconnected sub cable. enabled sub setting in receiver. Through test tones the sub is now working... not sure if it has the same oomph that it did before but will have to check test tones with spl meter to verify. The popping noise occured twice last night, and the sub was definitely silent. Not sure what the deal is but will still call axiom today to find out what their thoughts are.
Everything seems OK except the amp which to me sounds like the culprit. The amp is acting like it is on its last legs. Keep a careful ear out for anymore popping sounds or any other strange sounds either when the sub is in standby or when the sub is playing. This eventually leads to the loud pop of death.
