Nightfall
Unison Research is an Italian company that has a reputation for good sounding tube amplifiers. My suspicion is that it will fall in somewhere between the Prima Luna (class A/B push pull) and the LM 518a (class A SET) . The S6 model is class A and parallel SET with 3 el 34 per channel.
I bet this amplifier sounds really good given the design, circuit and topology. Don’t know if it will equal what your friend heard with the 518a but you never know until you’ve actually listened . As Al noted heat output is still a concern. I sympathize with your fiend, he has good taste/ears but limiting circumstances.
Charles
Unison Research is an Italian company that has a reputation for good sounding tube amplifiers. My suspicion is that it will fall in somewhere between the Prima Luna (class A/B push pull) and the LM 518a (class A SET) . The S6 model is class A and parallel SET with 3 el 34 per channel.
I bet this amplifier sounds really good given the design, circuit and topology. Don’t know if it will equal what your friend heard with the 518a but you never know until you’ve actually listened . As Al noted heat output is still a concern. I sympathize with your fiend, he has good taste/ears but limiting circumstances.
Charles