现在市面上所销售的品牌音箱,灵敏度较低,大多数在82~89dB之间,承受功率大,在几十瓦至一、二百瓦,多配套大功率晶体管放大器作为推动。但一般中、低价位的晶体管放大器,音质又不尽理想,明显缺少“堂音”。所以笔者用电子管器件制作了一台较大功率的推挽功率放大器,用来推动现代音箱,取得了极好的效果。 Now sold on the market brand speakers, the sensitivity is low, most in between 82 ~ 89dB, withstand power, in the tens of watts to one, two hundred watts, and more supporting high-power transistor amplifier as a promotion. However, in general, low-cost transistor amplifier, sound quality is not perfect, obviously “” Dang tone ". So I made a tube with a larger power push-pull power amplifier, used to promote modern speakers, and achieved excellent results.