Sold per bottle Sunvalley sorting ball beam output tube measured value 62 (rejected value 44) with original box ※The measured values indicate gM values measured with the test machine TV-7 (Kojima Yosuke)
Accessories: original box
Pair tube large triode tube Sun Valley sorting sphere measured Ip value: 71/68mA (the best standard IP value for this amplifier is 75mA) *The test amplifier makes sound, measures plate current values, and operation has been checked (Kojima Yosuke)
Accessories: original box
Pair tube Sun Valley sorting ball direct heat triode tea base made in China measured value 72/68 (rejected value 58) with original box*Pairs are judged based on gM values measured with the test machine TV-7 (Kojima Yosuke)
Accessories: original box
The disposal price has been reduced! (Member prices are not applicable) 2025/12/11 sales price 250,000 yen Maintained! This is the 2010 version of the SV-2. This time it will be the 211 model. Compared to the 2007 model, it has a plump and glossy sound like a vacuum tube amplifier. There are also 4 input systems, so it's easy to use. There are scratches and paint peeling on the exterior. (TAMURA Eiji)
Maintenance information: 2025.12.11 Maintained (input volume and function switch replaced. Installing the bonnet fixture. Vacuum tube pin cleaning. Solder correction. Bias check. Voice check for each input and output. Output approx. 9 W (8 ohms))
Accessories: instruction manual, power cable, bonnet
Main specifications: 4 input systems with volume W410 x D408 x H251 mm weight 35 kg
Large triode tube sun valley sorting ball measured Ip value: 66mA (the best standard IP value for this amplifier is 75mA) There is discoloration on the base part*The test amplifier makes sound, measures plate current values, and operation has been checked (Kojima Yosuke)
Accessories: white box
The price has been drastically reduced! 2025/12/12 sales price 278,000 yen Maintained! This is the company's best-in-class 845 single power amplifier, which has a strong visual presence. It is a high quality vacuum tube power amplifier with an impressive pure sound, even though no stinging sound is felt at all. There are small scratches and dullness on the exterior. Serial 77374 (Tamura Eiji)
Maintenance information: 2025.12.12 Maintained (replacement voltage amplifier part, earth pattern correction, solder correction, vacuum tube pin cleaning, board position correction due to decoupling capacitor coating deformation ※ bias check output audio check (output approx. 20W confirmed). 6SN7 → 300B → 845 single (self-biased))
Accessories: power cable, instruction manual
Main specifications: 300B x 2 x 845 x 2 6NS7EH x 2 300B drive UV-845 single power amplifier 20W+20W damping factor 4 or more power consumption 400W size W470 x H305 x D420 mm 42.1 kg