Brotw,
From all indications I’m aware of the 508ia is a higher tier amplifier in all regards compared with the 218ia. No put down of the 218ia at all. According to fellow audiogoners Wig and Waltersalas the 508ia (805 tube) is extraordinarily good. I trust both of them given their long track records on this site. Good ears and experienced with many high end products. Only thing is I'm not sure about transformer voltage conversion/compatibility.
Charles
From all indications I’m aware of the 508ia is a higher tier amplifier in all regards compared with the 218ia. No put down of the 218ia at all. According to fellow audiogoners Wig and Waltersalas the 508ia (805 tube) is extraordinarily good. I trust both of them given their long track records on this site. Good ears and experienced with many high end products. Only thing is I'm not sure about transformer voltage conversion/compatibility.
Charles