DBX 234

All the inputs and outputs on the dbx 234 are balanced XLR connectors that are screwed directly to the chassis.  This connecting of the jacks insures that even if someone steps on a cable plugged into the unit, it's not going to tear up the circuit board inside.  

All dbx crossovers feature Linkwitz-Riley 24dB per octave filters, the professional standard.  Via two switches on the back panel you first select whether you're operating your system in stereo two-way, three-way or mono four-way.  Another back panel switch also selects whether or not you want to mono sum the LF (subwoofer) out.  

On the front panel you'll notice there are LEDs that indicate whether the unit is in mono or stereo mode.  Each channel has an input gain control for proper level setting. There's a recessed 40 Hz low cut (HPF) on each channel to remove unwanted low frequencies.  Both the low and high outputs on each channel have a gain control ranging from -infinity to +6dB, to allow muting of individual outputs and for level matching.  Also, these outputs each have phase reverse switches that'll help get you out of a bind without having to reconfigure your system.  These phase reverse switches may be internally reconfigured as mute switches.