It may have been a MC462 Solid State Amplifier. I would think it is because it is solid state vs tubes. I am constantly surprised at how much solid state power you need to perform similarly to tube amps. I am also an ARC fan.
Tube amps under $7500
Ready to experiment with combinations never before (or not recently) tried. Step one requires a tube amp. Now looking at Prima Luna EVO 400 which sells for 5K. Any other tube amps I should consider in this price/feature range? Must come in silver with balanced input. For pairing experimentally with various tube and SS preamps. Efficient 4 ohm Legacy speakers (and the room/setup) are the constants.