300B,811,211 SE triodes

I have used both 300B and 211 amps in my system. If you are going to use the Aerius at 89dB senstivity, I don't think the 300B will feel your needs. While I found the 300B best with vocals and small group jazz you probably need more power. I currently have 211 mono blocks with 91 dB senstivity speakers and it works quite well. The 211 puts out about 50 watts in my amps and should be enough for 89dB speakers. Of course there is always a loss in the bass and the top end sometimes may be a little rolled off but the midrange is what single-ended triodes are all about. Very musical. You can find new 211 tubes made in China and NOS available,but the NOS can be quite expensive.Good luck

Hi Iceraven, To answer your question, I have a pair of Cary 805B mono blocks with NOS RCA 211 output tubes. My speakers are Von Schweikert VR5s rated at 91 dB and a nominal ompendence of 6 ohms. When I stated that the bass may be less I was comparing a tube amp over solid state. In my smaller room the bass is not a problem. As far as the top end extension, it is only with certain source material,some full classical recordings require more power to capture the sound on the vinyl or cd. With all equipment there will be trade offs, I feel that the overall sound from the SETs negate the shortcomings. In my second system I have tubes and electrostatic speakers, a complete different sound but I really prefer the SET sound.Hope this helps.