Ashly XR4001 Stereo 4Way #11189

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Details
The unit can be run as a stereo 4-way or mono 7-way, 24dB per octave electronic crossover and is housed in a two rack space chassis. Also included are a 200:1 tuning range, output mute switches, and both 1/4 TRS phono and XLR connectors. The XR4001 features low distortion, active balanced inputs, a peak level indicator, a precision regulated power supply and protection against abnormal input or output conditions. The response control adjusts the damping of the filter, affecting the response shape of the filters at the crossover point. The dial calibrations refer to the amount of attenuation effected by the filter at the crossover frequency, i.e., a setting of 3dB means that the filter's high-pass and low-pass outputs are each rolled off 3dB at the crossover point. This describes a Butterworth filter response, or a gentle 3dB peak at the crossover point when the two filter output signals overlap. To obtain a flat signal, or Linkwitz-Riley response through the crossover region on the XR4001, the response control should be set to 6. This attenuates each output of the filter by 6dB at the crossover point (two identical signals added together yield a +6dB increase). To obtain a notch at the crossover point, the response control should be turned down past 6. The purpose of this control is to help offset the inaccuracies inherent in typical loudspeakers, thereby helping you to achieve a flat system response. Key Features � Variable filter response allows tuning-in Linkwitz-Riley or other filters � 24dB/Octave slopes � Output mute switches � Peak overload warning LEDs � Balanced XLR and 1/4 TRS audio connections