I've been intrigued by Ascend speakers for a few years but my stereo system upgrades sort of took me on a tangent that now might not be compatible with 87dB speakers. I'm currently running 300b tube based single-ended triode amp and pre-amp separates (DIY kits thought Bottlehead).

However, through 91dB monitors (Energy RC10) I'm now getting surprisingly good results. I have all the gain I could want/need in my modest listening area (~8' listening position from speakers). I'm even pleasantly surprised by the amount of bass I'm hearing from these 6" woofers that wasn't there when powering the Energy speakers through my Denon AVR. I've even crossed a future 0.1 or 0.2 subwoofer package off my upgrade list.

Originally I thought my upgrade path would next have to be to higher sensitivity speakers but now this has me thinking. Might Sierra 2s be back in the running? Has anyone tried powering Sierra 2s through a low watt tube amp?