I'm in agreement that the SPM improved both the ultimate bass output AND removed a transient edginess existing in the Red Dawn. The extra bass didn't surprise me as the SPMs are larger. The cleaner top octaves was a treat. Yet I bought the SPMs at 70% off used, making them a no-brainer. I found the Red Dawn, Siltech whatever, Discovery Essence and HT ProSilway XLRs almost indistinguishable from the RD, but the SPM was clearly better than all these.
Too bad, as I always like cheap giant-killers.
Too bad, as I always like cheap giant-killers.