奥地利EAT E-Glo S 真空管唱头放大器

一直不断开拓黑胶市场的EAT厂家，在唱放上再添一名新成员: E Glo S，而且是经济型胆放制品，性价比极高，属同级同价位少有之佳作！

线路设计上最大特色是，将自家制一对高质素ECC83以双3极模式，把增益分成初/次两级。因此，电子管就取以共阴共栅极方式，并联连接低讯噪的J-FET场效应管作放大电路。这样，唱放便能获得高增益而又低失真的理想效果。

至于在标准的RIAA曲线均衡方面，E Glo S以被动方式处理分成两级工作，令唱放在等化曲线和增益阶段这两重要环节取得最好的阻抗函接。因此，E Glo S唱放设有5段增益调节，最高可达致70dB。另外，有多个MC输入阻值和MM输入容抗调节，方便匹配不同需要的唱头使用。

外观以上级型号E Glo为设计基础，全铝合金底盘结构，外侧也用上焗漆黑檀木，令唱放加添几份优雅！设于机顶的几个按扭，以上下推动方式来拣选阻/容抗值、增益量数、与及超低频过滤开关，甚为方便。

除了采用分体式电源设计以减低讯号干扰，电源部份是以阳极电压调控与及三级式电压过滤线路，带来完美的讯噪比和无与伦比音乐表现！

E-glo S – is a hybrid phono preamplifier that utIlizes ECC83 tubes (twin triode) in the first and second gain stages In order to get higher gain and lower noise we use in the first stage a cascode connection of tube with with two paralelly connected low-noise J-FET transistors.

RIAA curve is equalised fully passive and splitted in two steps which allows to achieve perfect impedance matching between the gain stage and equalization block. Phono preamplifier doesn't have any global feedback. It has a massive aluminium chassis, large possibility of adjusting the impedance, capacity and gain. It has subsonic filter with mild effect which doesn't affect audible frequencies in unpleasant way.

A very important part is the advanced power supply that uses anode voltage regulation and a well filtrated voltage. Filtration is in three steps, this result is a perfect S/N ratio and undisturbed musical experience.