The ST-CX2S is a subwoofer signal equalizer in the STICK-ON series of products from RDL. The ST-CX2S 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 ohm 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. The ST-CX2S features RDL's SupplyFlex power input configuration for operation directly from ground-referenced, floating or bipolar 24 Vdc power.