Fjn,
As I noted, the P/Es aren't a super easy load.
However, I've successfully run the P/Es with 55wpc Cary 805 SET amps for over 10 years. In fact, the P/Es were demo'd at the dealer (Sound by Singer in NYC) with these amps. Now, this is a pricey SET amp, but an SET, nonetheless, and, as such, not exactly insensitive to the load they face. I've also had no issue running the P/Es with PrimaLuna 7 tube amps, similarly rated. Rooms sizes (there have been several over the years) have ranged up to the moderately large (14x23x17' cathedral ceiling at the largest). I listen fairly loud at times - and my taste runs to some fairly full range program material.
Bottom line, I agree that the P/E is a modestly tough load - it ate up the 30wpc Atmasphere S-30 and the smaller Cary 300B monos. However, it will work well with most 70wpc tube amps, in most rooms, with most material at most listening levels - at least IME.
As I noted, the P/Es aren't a super easy load.
However, I've successfully run the P/Es with 55wpc Cary 805 SET amps for over 10 years. In fact, the P/Es were demo'd at the dealer (Sound by Singer in NYC) with these amps. Now, this is a pricey SET amp, but an SET, nonetheless, and, as such, not exactly insensitive to the load they face. I've also had no issue running the P/Es with PrimaLuna 7 tube amps, similarly rated. Rooms sizes (there have been several over the years) have ranged up to the moderately large (14x23x17' cathedral ceiling at the largest). I listen fairly loud at times - and my taste runs to some fairly full range program material.
Bottom line, I agree that the P/E is a modestly tough load - it ate up the 30wpc Atmasphere S-30 and the smaller Cary 300B monos. However, it will work well with most 70wpc tube amps, in most rooms, with most material at most listening levels - at least IME.