The Model 300 B Monoblock that You chose is a final mono amplifier in pure class “A” which enhances the technical evolution of the famous triode 300 B. The output transformer we designed and manufactured for this triode allows to reach a range of extension which would be otherwise impossible with (the use of) standard output transformers
which need (work with) a negative reaction.

The result is a perfect sound stage and a surprising presence.


Note: Not all Mastersound products are in-stock items. Accordingly, delivery may take 2-4 weeks from Italy. Please call for availability and delivery estimates.