This speaker gave off very clean sounds with warm middle range as equipped the SCAN 93000 tweeter. Depite the 4ohms impeadance, it could be drived much better than my other speakers with 6ohms by the Accuphase P102. Before connecting to P102, I'm wondering if it can be drived well or not. I found my suspicion was superfluous. The M-700 provided better clean sounds and drived its woofer adequatelly.