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Are my Virgos efficient enough?

I'm expecting delivery later in the week of a pair of KR Audio VT 6000 monoblock amps. They output 20wpc in Class A with the special KR Audio 300 bxl tubes. I'm wondering will this be anough power to drive my Audio Physic Virgo IIs? I believe they are relatively sensitive at 89db, but they also operate at 4ohm load, so not sure if that will make a difference. Anyway, I'm wondering if I should seek out more efficient speakers to get better results, or if the Virgos will do the amps justice. Right now I drive the speakers with Blue Circle BC2 monos to great effect (75wpc in Class A), and Supratek Syrah. I would be looking at speakers in the same price bracket (used) as the Virgos. Over time though, I would be tempted by the JM Lab Mezzo Utopia or GR-Research Line Source (again, assuming my amps could drive them). Thanks in advance for advice. Cheers,
John.
128x128outlier
gregm
3,409 posts
 
They *do* play. I've listened to Virgo driven by yr amps. As you no doubt already know, the amps sound exquisite.

The combo just won't go very loud (i.e. before the amps start clipping) if your room is large.

If/when you start looking other speakers, I would recommend 94+ db sensitivity & a nominal Z of 8ohms. There's a plethora of choices.

OTOH I'm not sure the Mezzo Utopia are the best choice given the driving power you have.
outlier's avatar
outlier OP
381 posts
 
Thanks Gregm for the thoughs. Just to clarify, when you say you've listened to the Virgos with my amps - do you mean the KR Audio (the ones I'm getting), or the Blue Circle BC2s (the ones I have). Yea, I reckon a more sensitive speaker may be a better fit, although I do love the Virgos. Also, I'll be using the amps and speakers not just for music but also for movies/ht (not surround yet, but will get there). Anyway, again thanks in advance for all comments and suggestions. Cheers,
John.
gregm
3,409 posts
 
John:
I meant the KR (sorry for the confusion).
BTW, Triangle makes more sensitive speakers that have some "similar" sound qualities to the Virgo. The design is completely different (minimal x-over, wide-range drivers used, etc), but the imaging, the sense of speed, etc are similar. I listened to a model called "Volante".
Cheers
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