I drive mine with Moon W-6's, the sound is effortless and never sounds strained. When I calabrate the system I have no problem hearing the 25Hz test tone.
I have listened to the Encore's with the VAC Avatar also and they did sound very good as Jmcgrogan2 stated.
I have listened to the Encore's with the VAC Avatar also and they did sound very good as Jmcgrogan2 stated.