The newest Trafomatic Audio High End Integrated PSE Amplifier The new PSE 300B integrated amplifier is 20W per channel, has an input sensitivity of 0.4Vrms, input impedance of 47K and 4 and 8 ohms output. It features four 300B and two 6SN7 valves and has VU meters on the front, plus three RCA and one XLR connection. Weight is 32 kg. Definitely something for the 300B enthusiasts to drool over