Hi,
I use My Coincident Statement pre-amp and Decware Zen Mystery Amp with 40 watts of 4 Ohm to drive Avalon Eidolon Diamond. It provides bass punch and authority without any problem, even for orchestra music. However when I add Martin Logan depth sub-woofer to my system, it provides realism Live concert. I recommend to add sub-woofer to Avalon Eidolon Diamond for last bottom frequency of 20 - 24 Hz. You will be totally amazing to what you hear. It is totally different world to no-sub-woofer. Even though Avalon speakers manual states that adding sub-woofer will give more negative effect than positive effect.
I use My Coincident Statement pre-amp and Decware Zen Mystery Amp with 40 watts of 4 Ohm to drive Avalon Eidolon Diamond. It provides bass punch and authority without any problem, even for orchestra music. However when I add Martin Logan depth sub-woofer to my system, it provides realism Live concert. I recommend to add sub-woofer to Avalon Eidolon Diamond for last bottom frequency of 20 - 24 Hz. You will be totally amazing to what you hear. It is totally different world to no-sub-woofer. Even though Avalon speakers manual states that adding sub-woofer will give more negative effect than positive effect.