The Studiomaster Professional SX 521 is an Active 2-way/3-way Stereo & 4 way Mono Crossover that gives you accurate control to enhance your performance.

  • 2 Way / 3 Way Stereo & 4 Way Mono Crossover.
  • 24dB / Octave Slope.
  • Crossover Frequency: 45Hz - 900Hz & 450Hz - 9kHz.
  • Individual output level & Mute control for all bands.
  • Color coded for easy connections.
  • Clip LED, Phase Reverse, Low Cut & Bypass Switch.
  • Input & Output Connectors: XLR & 1/4" Jack.
Input Impedance 10K Ω Unbalance/20K Ω  Balance
Output Level/Impedance 0.775V, Max 7V Balanced
S/N ratio >100 dB
Crossover frequency range 450Hz-9KHz, 45Hz - 900 Hz
THD 0.05%
Low Cut -3dB@30Hz
Input sensitivity 0dBu
Slope (Low, Mid, High 24dB/octave
Subwoofer slope -
Power supply 230 V / 50 Hz
Dimension (W X D X H)mm 483 x 147 x 46 (1U)
Net Weight (Kgs.) 2.3