If I remain in the chapter "power amplifier", here we have an REPRESENTATIVES of this family with a 2x80W power into 8 ohms. I do not know the power into 4 ohms is enough comfortable for driver correctly a variety of speakers
The construction is strictly symtrique, down transformers, which feed on-dimenstionns each section (see photo below). The whole is a steel casing Intgr appearance any, but a solid perfectly convincing.
The price / performance ratio for one of these nightingales (if you still find), is in the forefront of the best. Dj's era (year 2001), a silent Exposure dj a good deal. Nothing has chang t this finding. The combined power of pr + SERIES classic has no trouble competing with a Naim SuperNait or Luxman 507u (DSOL for now I still have some exprience and it is a little with the Sugden IA4 and my own combination, the only amps I carefully cost).