Sun Audio SV-300BE (new chassis)
stereo 300B SE amplifier kit from Japan

Just as the SV-2A3, this is a magical good tube amplifier. This SV-300BE offers more power, openness and better bass response
(the 2A3 offers more sophistication)

Sun Audio SV-300BE (new chassis)

Sun Audio has developed a new chassis for their SV kits.
The new chassis looks exactly the same as the old version (so happy that they did not change that), but the humm balance potentiometers have been relocated. These are now located directly in front of the output tubes and can be set without the need to put the amplifier upside down.

All (brands of) output tubes are made a little different. When changing output tubes it is sometimes necessary to adjust the "humm balancing potentiometer" to achieve the lowest output humm.

Re-designing the chassis also offered the possibility to use new high quality input sockets and new loudspeaker terminals

It also offers the possiblility to upgrade the output transformers to the F-2007 output transformers.

To increase reliability and sound, expensive Yamamoto tubes sockets are supplied for the output tubes.


• Stereo amplifier
• 2x 6SN7 input tube
• 1x 5U4G rectifier
• 2x 300B output tube: 7W + 7W output power
• Input impedance : 100KOhm
• Output terminal : 8 Ohm
• Frequency response : 20Hz ~ 25KHz / -3dB
• Output noise : 2,5mV or less
• Dimensions : W360xH190xd270
• Weight : 16Kg.

Input tubes and rectifier (all Sovtek) are included.

Price :

SV-300BE, including pair ELROG 300B
230Vac Power transformer



SV-300BE, without output tubes
230Vac Power transformer