Tamura in Japan just announced that they will not receive any order on the production of transformers after 31st December 2025. The reason is due to the aging of testing and filling machines which already became too old and therefore not giving good results on the final products.

This unit is modified to use 845 or 211 tubes so that the output power increases up to 15W and 10W. Tamura output transformers, Hasimoto power transformer and Tango choke. Switching power supply for the filament on power tubes and no adjustment is required. Price is $19800 only.

This is one piece SUNAUDIO SV-2A3 using Tango U-808 output transformers and choke. Original Tamura power transformer. It has a gold top plate but same lay out as the original model. The price is only $12800 hk.

This is a SUNAUDIO SV-300BE using SOWTER （England made) output transformers. The casing is bigger in size in order to adapt the bigger transformers. There is big improvement on the bass and mid range without sacrifice on the high frequencies. The price is $18800hk.

This unit is specially modified to use 845 power tubes to give output power more than 10W. Switching power supply supply the filament of the 845 tubes enable the use of such a small casing. The hum level is very low and there is no need for adjustment.