function EQFilter(freq, res) {
    var _this;
    eqFilter_classCallCheck(this, EQFilter);
    _this = _super.call(this, 'peaking');
    _this.disconnect();
    _this.set(freq, res);
    _this.biquad.gain.value = 0;
    delete _this.input;
    delete _this.output;
    delete _this._drywet;
    delete _this.wet;
    return _this;
  }
EQFilter extends p5.Filter with constraints
 necessary for the p5.EQ

 @private