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Reference 1.1

Manufacture:OPERA
Price: JPY 45,273 Sold Out
21-28458-08962-00
2003 made
Arrival: 2021-05-01 19:20:24
The disposal price has been reduced! (Member discount is not eligible) 2021/5/1 Sales price 99,800 yen Maintained! An opera audio line-only tube control amplifier with a stylish wood top plate. Simple configuration for large power supply Deliver music sources without coloring with a natural sound. * The switch to reduce the gain by -10dB has a strong effect, and the volume drops at a level almost close to muting. This will be passed on the status quo. There are some small scratches over time due to use. (Hiroki Yamato) Maintenance information: 2021.3.1 Maintenance completed (* Check above Both channels have fluctuated output DC according to power fluctuations. This is the nature of this model. (I don't think it is originally compatible with high input impedance high gain semiconductor amplifiers.) Output DC can be suppressed by replacing some parts, etc. Perform the following actions: * Additional replacement of electrolytic capacitors and resistors VR and SW reinstallation control alignment. Replace the hole correction screw due to damage to the exterior screw hole * Output DC fluctuation has been reduced to 1/20 or less by the above procedure. (Each input/output was checked) Accessories: Power cable Main specifications: Input RCA3 system output 1 system used vacuum tube ECC82 × 2 pcs W440 × H110 × D385 mm 11.4 kg
　　
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