SR-231Q
*2U双31段1/3倍频程图示工程均衡器
*内置最新的降噪电路，低噪声输出
*40Hz的低频切除滤波器
*互补增益控制电路使频点精确、音色平滑、圆润
*具有平衡XLR及1/4＂TRS端子输入/输出
*高精密的电容提供精准的频点
设有独立的高通滤波，低通滤波器，剪除多余的频率以减轻功率的损耗，独立的增益范围切换键则方便不同需要。由于建筑结构方面的原因，不同的地场有不同的频率传播特性，这跟各场地的客观体积、材料摆设等有密切关系。
不同材料反射和吸声程度不同而对不同频率的声音的反射和吸音也不同，造成场地传输特性不均衡，甚至因驻波反馈而产生啸声，这就需要均衡器。

SR-231Q feature:
* 2U Dual 31 rows 1/3 octave graphic equalizer
* Built-in updated noise reduction circuit, low-noise output
* 40Hz low-frequency cut filter
* Complementary gain control circuit to make frequency point accurate, tone smooth and mellow.
* Balanced XLR and 1/4 TRS input / output
* To provide high-precision capacitance-frequency precise point
The independent high-pass filter, low pass filter cut extra  frequency in order to reduce the loss of power. Independent gain range  switching key is to facilitate the different needs. Due to the building structure, there is different frequencies in the different propagation characteristics, that is closely related to the objective volume and material displays in each venue. Having the different frequencies in the different materials of the reflection and sound absorption,which need the equalizer resulting in the uneven transmission characteristics of the venue, and even produced a result of standing wave feedback and howling.