I recently listened to the new Silverline Sonatina and Sonata driven by a 2A3 SET amp and was blown away. The Sonata was fantastic, with great sound reproduction over a wide frequency range, excellent resolution, air, soundstaging, etc. Moreover, the stated efficiency was 96 dB with an even impedance of 8 ohms. A number of us thought that the sound was comparable or better than the JMLab Utopia at 1/5th the cost! I am going to sell my Coincident Super Eclipses and buy a pair of Sonatas!