Thanks for yours advises. Now I'm almost sure that Concerto is the amp I'm lookig for.
A' propos Amphion Xenon. It's sensitivity is 85-86dB, nominal impedane 8 ohms (probably never less than 7). Althouth it is very difficult speaker because its sensitivity on the quality of electronic, especially amps.
A' propos Amphion Xenon. It's sensitivity is 85-86dB, nominal impedane 8 ohms (probably never less than 7). Althouth it is very difficult speaker because its sensitivity on the quality of electronic, especially amps.