Perreaux of New Zealand Components

I owned the units you mentioned except for the SM 2. I had the SM3. I owned them for about 5 years. The tuner was/is a very good unit. Slightly warm in tone but with only moderate sensitivity. The tone control was useful when needed. The pre-amp was a weak link - I found it grainy and cold in tone. The amp was good but not great it too was a bit cool and grainy. All units except for the amp required service more than I expect(ed). Even the amp had a poor power switch. You are unlikely to retire on the sale of these units. The amp would be worth the most I think. Maybe 500 to 700. The Tuner 200. The TC 200. The SM2 maybe 200 to 300. They do look nice though. FWIW I also had the matching patch bay- it is the only item which had no failures. Sorry I couldn't give you move favorable views.

@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!

Perhaps the 2150B just suffered in  comparison to my Threshold SA3 and ARC 115 MKII. The Thiels I was driving were probably a factor as well. You've probably made a better match than I did.