Megalith - Design Studies
Study A - FET Amplifier derived from Hiragas "The Monster"
Study B - FET Amplifier derived from publications of Erno Borbely
The two other design studies are not as simple as those above. However, they do not have the direct multi-stage NFB which may be influenced by the speakers voice coil.
Study C - FET Amplifier, no direct multi-stage NFB
Study D - FET Amplifier, no direct multi-stage NFB