Radio Design Labs ST-CX2S
Subwoofer Crossover Filter

OUR PART #  STCX2S


Radio Design Labs' ST-CX2S is a subwoofer signal equalizer in the STICK-ON series of products from RDL. It offers flexibility in equalization adjustment, with the exceptional performance of RDL. The ST-CX2S features two separate, isolated balanced bridging inputs which may each be wired balanced or unbalanced. The output driver is 150 O balanced which can drive low or high impedance balanced or unbalanced lines. The module operates at unity gain at 63 Hz (balanced input to balanced output). A BOOST control permits adjustment of the output at 32 Hz from flat to +5.5 dB. It features RDL’s SupplyFlex power input configuration for operation directly from ground-referenced, floating or bipolar 24 Vdc power.

NOTE: Radio Design Labs' PS-24AS power supply is NOT included but is required in order to power this product.  Please see the "Accessories" tab or click here for more information on the PS-24AS power supply.

Features:

  • Active Subwoofer Equalization
  • Subwoofer Signal from Stereo Source
  • Adjustable Low-Frequency Boost
  • Low-Noise and Low-Distortion Crossover
  • Active Crossover Component
  • RDL® SupplyFlex™ Power Input Configuration

Specifications:

  • Inputs (2): 50 kO balanced line-level (+4 dBu)
  • Output: 150 O balanced line-level (+4 dBu)
  • Output Bandwidth: 22 Hz to 80 Hz, (adjustable BOOST)
  • High Frequency Attenuation: > 45 dB (at 400 Hz)
  • Gain: Unity at 63 Hz; adjustable flat to +5.5 dB at 32 Hz
  • Headroom: 18 dB minimum at 30 Hz (maximum boost), 22 dB typical
  • THD+N: < 0.05%
  • Input CMRR: > 60 dB (30 Hz or above)
  • Residual Noise: < 90 dB (referred to +4 dBu); 95 dB typical
  • Power Requirement: GROUND-REFERENCED or FLOATING, 24 to 33 Vdc @ 30mA
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