Since you like Energys (and I can't blame you; I like Canadian speakers in general and API speakers in particular), why not look into the Energy RC-70 floorstanding speakers? The claimed sensitivity is high -- 92 dB anechoic, and 95 dB, both speakers in-room. If that latter figure is honest, your 35 wpc tube amp should be able to produce clean peaks of 110 dB with these. They're $2200/pair list price.
As for whether this particular model is made in China or Canada, I can say that I have several pairs of Canadian-made Mirages (also an API company) and a new pair of OMD-15s made in China. The Chinese-made ones are *at least* as well built as the Canadian ones. My OMD-15s are superb in every way--sensitivity, dispersion, linearity, frequency extension, imaging, dynamic range at both ends of the scale, etc.
As for whether this particular model is made in China or Canada, I can say that I have several pairs of Canadian-made Mirages (also an API company) and a new pair of OMD-15s made in China. The Chinese-made ones are *at least* as well built as the Canadian ones. My OMD-15s are superb in every way--sensitivity, dispersion, linearity, frequency extension, imaging, dynamic range at both ends of the scale, etc.