Oriolusブランドの真空管ヘッドホンアンプ「OA-JC5」と、真空管搭載USB DAC「OA-JC3」の簡易DIYキットが千石電商 秋葉原本店にて販売中。価格は2万4200 ...

Back to the review and the subject is the EZ Linestage, a self-contained valve pre amplifier with gain that is user-adjustable ... There are quite a few of them in this kit as it has three sets of ...