shadorne, I'm not an engineer but I don't believe the number of transducers is the major factor in determining the necessary amp power. If that was the case then the Infinity IRS would have required something like a welding machine to drive them. ;^)
As mentioned, I owned Duntech Princess speakers for many years. They were rated at 90 dB (with 5 transducers) but I didn't believe that. I expect ratings can be based upon individual driver specifications, but in this case the first-order crossover was very complex. So I believe that reduced the efficiency of the speaker overall. In spite of the 90 dB rating John Dunlavy recommended at least 200 wpc for "optimum performance". I tried many amps over the years, tube and SS, beginning at 100 wpc. What I found to sound best (musical and effortless) was a pair of Parasound JC-1s rated at 800 wpc into their 4 ohm rating.
Something that may confuse the issue is that many owners of DAL speakers reported satisfaction with more modest amps. But as far as I know the DAL line up utilized different drivers than the Duntechs. Bottom line, I agree with shadorne that Duntechs can be constrained by amp choice but I don't believe it is because of the number of drivers.
As mentioned, I owned Duntech Princess speakers for many years. They were rated at 90 dB (with 5 transducers) but I didn't believe that. I expect ratings can be based upon individual driver specifications, but in this case the first-order crossover was very complex. So I believe that reduced the efficiency of the speaker overall. In spite of the 90 dB rating John Dunlavy recommended at least 200 wpc for "optimum performance". I tried many amps over the years, tube and SS, beginning at 100 wpc. What I found to sound best (musical and effortless) was a pair of Parasound JC-1s rated at 800 wpc into their 4 ohm rating.
Something that may confuse the issue is that many owners of DAL speakers reported satisfaction with more modest amps. But as far as I know the DAL line up utilized different drivers than the Duntechs. Bottom line, I agree with shadorne that Duntechs can be constrained by amp choice but I don't believe it is because of the number of drivers.