So, 10 weeks in, and the 4s continue to impress. What I'm most happy about at the moment is ironically what was always most lacking in the 2s, and what wasn't totally convincing on first listen, and that's the treble. The whole presentation now has an amazing sparkle but with none of the emphasised treble tilt so present in multi driver/xovered type speakers. There's no doubt the FRDs are still controlling the majority of output, but the Radian 850 unit is really proving it's worth without ever drawing undue attention to itself (no diamond, Beryllium or ceramic drivers for me, thank you!).
The result is a comfortable relaxed sound that really shines into the higher (and lower) frequencies, but only when needed, maintaining a really holistic presentation all the time, but then exploding in an instant where real headroom and dynamics are needed.
I'm really perplexed with anti Zu sound comments over the years, and now I believe this spkr with the Druid Vs really deserve to be heard and I'm sure appreciated by a greater number of potential buyers. I really believe Wilson, Magico B&W, YG etc. would lose sales if the new breed of Zus were wider listened to.
Further to treble comments, I'm still going to investigate the cap upgrade to Duelund CAST Cu, and I really am finding my Hovland amplification is synergising nicely, obviating a real need to go SET or OTL (although I will still investigate these options). For me, system wide improvements I feel are still the best way to go esp power and supports/vibration control. The 4s are so transparent that for the first time in my system changing racks are having profound outcomes.
