资深的音响发烧友都知道美国六七十年代有一个发烧名厂DYNACO,港台译作——大力宝或甜梦。创办人David Hafler先生颇有理想,他保证:任何人都能组装成功,且花费较少,但一定有高价位成品机的质量。从真空管到晶体管,从小功率到大功率,美国大力宝享有40年扩音机之设计和生产丰富经验。在真空管时代,它生产的ST-70胆立体声后级已经成为一代铭器,与麦景图和马兰士齐名。而这台STEREO 80,则是进入晶体管时代后,DYNACO生产的最具代表性的作品之一。 
动态范围广阔的音乐需要的就是STEREO 80纯后级这样的宁静、敏捷和输出功率可以弹性随着音源大幅伸展的功放。 




STEREO 80外型小巧,体积与一般女士鞋的盒子相当,打开外壳我们发现在这娇小的躯体里,线路缜密布局、上乘选料、电子开关输入,多个场效应管,超大变压器,超大电容,足以提供电流输出达18安培,使额定输出可以根据表现音乐的需要自由跳转!与其他品牌相比,美国大力宝顾及靓声的同时还非常顾及安全,保护功能有百分百保障的微继电器被置于功率管与输出端的短小路径上。 

强调一下美国大力宝的设计理念,就算你听回以前的LP或欣赏CD碟,你同样感觉到那种散发胆味的馥郁醉人的sweet dream(甜梦)音色! 该机8.5成新,声音大气奔放、淳厚甜美,绝对无修无摩!平均输出功率2×50瓦(个人觉得实际驱动力远远不止这个数,其驱动力控制力表现完全可以达到某些国产200W后级),变压器容量400瓦,美国原装120伏电压。 官方资料: Rated Power Output: 30 watts average continuous power per channel into 8 ohms, 20-20,000 Hz at less than 0.5% total harmonic distortion. Distortion reduces at lower power levels. Power at Clipping, Single Channel, 1000 Hz, less than 1% distortion: 50 watts @ 8 ohms, 36 watts @ 4 ohms, 26 watts @ 16 ohms. Intermodulation Distortion: Less than 0.5% at any power level up to 40 watts rms per channel into 8 ohms with any combination of test frequencies. Distortion reduces at lower power levels. Half-Power Bandwidth: 20 watts per channel at less than 0.5% total harmonic distortion from 8 Hz to 50 KHz into 8 ohms. Frequency Response: ±0.5 dB, 10 Hz to 50 KHz @ 1 watt into 8 ohms. Noise: More than 90 dB below 40 watts output, full spectrum. Channel Separation: Greater than 60 dB from 20 Hz to 20 KHz. Input: 100,000 ohm load; 1.3 volts for 40 watts into 8 ohms. Semiconductor Complement: 12 transistors; 10 diodes. Size: 14" by 8" by 4" high. Shipping Weight: 13 lbs. Maximum Power Consumption: 35 watts quiescent; 250 watts maximum; 50/60 Hz, 100, 120, 220, or 240 VAC.
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