Single Ended Amplifier is using very small power so SPL is need at least 91dB/m/w over 95dB much better at home
This site http://www.single-ended.com has over 300 access's,from OUT OF Japan.
many thanks to " Audiophiler of the world ". from USA, France, Germany ,Italia ,both of Canada
and Europa , Mid East country and Mediterranean country,South Asia,South America, Newzealand ,Australia recently.
45/71A Single Ended Amplifier on Nov 2013
Santiago,Chile 2014 Jan Owner's room
Hashimoto 2A3 Single Ended Amplifier on Apr 2014 Play Jazz
Hashimoto 45/71A Single Ended Amplifier using H20-7U on July 2014
4P1L Single Ended Triode/UL Pentode Amplifier on Nov 2014
Altec A7 + 300B Single Ended Amplifier by You tube 2016 Aug
Hatt Audio Lab HO-808 using 300B Single Ended Amplifier on 20th Mar 2017
300B Single Ended Amplifier is Best
If do you have intersting NOS tubes from South America please ask Don Francisco Mella