Beautiful sounding hybrid monoblock amplifiers. Soundstaging is superior and tube rolling is fun, easy and relatively inexpensive since there is only one tube per amp. Changing the tubes does noticably effect the sound and I enjoy doing this to reflect the music I am listening to, if for instance I want a night of jazz instead of rock or classical, I change the tube accordingly. Faceplate is attractive and different from all the other Monarchy amps and I like it a lot. Feel free to email me with comments or suggestions, I have had these amplifiers for about a year now and I am enjoying them.