@newbee : I have a 2150B. It is not "grainy and cold"! In fact it can go 15 rounds sound wise against a similar era Krell or Levinson. The 2150B can be found on eBay for around $900. Plenty of power - 340/680/920 @8/4/2 ohms!
Perreaux of New Zealand Components
I have a power amp and some other Perreaux components and know nothing about them.. They were my fathers. Power Amplifier model is PMF 2150B. Pre Amp model is SM2, Tuner model is TU3 and Dual Channel Tone Control Unit is TC2. Can someone please shed some light on the brand and value is possible.