Amplifier for Guru Junior


Hi All.
I recently bought a pair of Guru Juniors and now looking for an amplifier for them. Can you recommend me something?
I'd like it to be able to play well at low and mid volume level with Guru's.

The source is a Metrum Octave.

Thanks.
128x128vinsentru
Like I said. Unlikely match. Played them with Odyssey Stratos Extreme and Jolida Tube Pre and with a Cayin A100T Tube integrated. The Cayin sounded way better with all kinds of music. Opposite of other speakers I’ve had with the same components. Merlin speakers are inefficient too and people almost exclusively use tubes with them. 
On another site they recommend Rega Elex-R, are there any opinions/experience on how Rega works with my speakers?