ESR was founded in 1990 as a professional PA sound rental company. Shortly after we began producing custom made audio equipment.
Our goal was from the very beginning to develop and produce products for the demanding professional musician, with a superior sound quality and features not seen on any other guitar effect pedal. As a result of that our first guitar effect pedal, The Hot Drive'n Boost, was introduced in 1993.
Due to our extensive knowledge of the professional music industry, and our contacts with a wide range of demanding musicians, we have been able to maintain a high quality of products and now have a range of 44 high quality guitar effect pedals, with more to come in the future.
In 2005 we released our first point point handmade tube amplifier the Custom Shop 50, the line now includes heads,- cabs as well as a bass system.
Søren Jongberg
CEO East Sound Research
全新的Carl Martin Tuner已经研发了一段时间了。如同所有的Carl Martin产品一样,我们希望它简单、吸引人、有效并且适用所有风格的吉他演奏者。Carl Martin Tuner采用我们传统的黑色铸模,调音可以通过电子屏幕或者闪光灯显示,两者皆明亮清晰并可站立观测。调音标准从437到443可调,默认为A440。加入的功能还有安静切换(可安静调音)和True-Bypass切换(可得到干净的吉他信号)。Carl Martin Tuner依靠9V电池或9V电源供电。