* S-EQ215A are stereo 15-band graphic equalizer with 2/3 oct.
* Optional range for boosting and attenuating: +/-12dB or +/-6dB
* Fixed Q character
* optional low cut filter
* optional bypass mode
* 5 segment LED level indicator
* Max output level: +20dB/+26dB (balanced)
* Total harmonic distortion: 0.05%
* Signal noise ratio: 96dB
* Low cut filter: 80Hz 12dB/oct