DBX 234S

The dbx 234s is a versatile and professional-grade active crossover designed to optimize the clarity and power distribution in multi-speaker PA systems. Whether you're configuring a stereo 2-way, stereo 3-way, or mono 4-way setup, the 234s ensures that each driver only receives the frequencies it's designed to handle, resulting in cleaner sound, improved headroom, and reduced distortion.

Engineered with 24 dB/octave Linkwitz-Riley filters, the 234s delivers seamless crossover transitions and precise audio separation. It features independent output level controls, phase inversion switches, a 40 Hz low-cut filter, and LF summing for subwoofers, giving users complete control over their system's sound profile. With TRS balanced inputs and outputs, intuitive front-panel controls, and robust internal components, it's ready for the rigors of touring and installation alike.

• Versatile Crossover Configuration: Supports stereo 2-way, stereo 3-way, or mono 4-way operation for maximum flexibility.

• Precision Filters for Clean Sound: Uses Linkwitz-Riley 24 dB/octave filters for smooth, professional-grade crossover performance.

• Subwoofer Output Option: Includes a mono-summed low-frequency output to drive subwoofers with impact and clarity.

• Switchable Low-Cut Filter: Built-in 40 Hz high-pass filter helps eliminate unwanted rumble from the signal.

• Phase and Gain Controls: Each output features independent level and phase invert switches for perfect system tuning.

• x10 Frequency Range Switch: Multiplies crossover frequency range for use with mid-high or high-frequency drivers.

• Clear LED Indicators: Visual feedback for mode, filter settings, and output phase makes setup intuitive.

• Balanced TRS Inputs and Outputs: Ensures clean signal transfer and compatibility with pro audio gear.

• Rugged, Rack-Ready Design: Built for touring and installed sound with a compact 1U chassis and durable construction.

GENERAL FEATURES:

• TRS differentially balanced 14 inch ins and outs

• Mode switches for mono 4 way or stereo 2 way 3 way operation

• Low frequency summed subwoofer output

• x10 range switch on both channels

• 40 Hz high pass low cut filter both channels

• Phase reverse switch on all outputs

• Individual level controls on all outputs

• 24 dB per octave Linkwitz Riley filters

• Stereo Mono status LEDs indicate the selected mode

• CSA NRTLC approved

• CE compliant

AUDIO PERFORMANCE:

• Frequency Response less than 3 Hz to greater than 90 kHz plus zero minus 3 dB

• Bandwidth 20 Hz to 20 kHz plus minus 0 point 5 dB

• Signal to Noise Ratio ref 4 dBu 22 kHz BW

• Stereo greater than 94 dB Low greater than 93 dB Mid greater than 90 dB High

• Mono greater than 94 dB Low Low Mid greater than 92 dB High Mid greater than 88 dB High

• Dynamic Range greater than 106 dB unweighted

• THD plus Noise less than 0 point 004 percent at 4 dBu 1 kHz less than 0 point 04 percent at 20 dBu 1 kHz

• Interchannel Crosstalk less than minus 80 dB from 20 Hz to 20 kHz

CROSSOVER CONFIGURATION:

• Stereo Mode

• Low Mid 45 to 960 Hz or 450 Hz to 9 point 6 kHz

• Low High 45 to 960 Hz or 450 Hz to 9 point 6 kHz

• Mid High 450 Hz to 9 point 6 kHz

• Mono Mode

• Low Low Mid 45 to 960 Hz or 450 Hz to 9 point 6 kHz

• Low Mid High Mid 450 Hz to 9 point 6 kHz

• High Mid High 450 Hz to 9 point 6 kHz

• Crossover Filter Type Linkwitz Riley 24 dB per octave state variable

INPUTS:

• Connectors 14 inch TRS

• Type Electronically balanced unbalanced RF filtered

• Impedance Balanced greater than 50k ohms Unbalanced greater than 25k ohms

• Max Input greater than plus 22 dBu

OUTPUTS:

• Connectors 14 inch TRS

• Type Impedance balanced unbalanced RF filtered

• Impedance Balanced 200 ohms Unbalanced 100 ohms

• Max Output greater than plus 21 dBu into 2k ohms or greater

SWITCHES AND INDICATORS:

• Low Cut Activates 40 Hz Butterworth 12 dB octave HPF per channel

• Phase Invert Per output

• x1 x10 Frequency Multiplier Per channel

• Mode Switch Selects stereo mono and 2 3 4 way operation

• LF Sum Selects normal stereo or mono summed low frequency operation

• Indicators Stereo Operation Green Mono Operation Yellow Low Cut Red x10 Green Phase Invert Red

POWER AND DIMENSIONS:

• Operating Voltage 100 120 VAC 230 VAC 50 60 Hz

• Power Consumption 15 W

• Power Connector IEC receptacle

• Operating Temperature 0 to 45 degrees Celsius

• Dimensions 1 point 75 inch H x 19 inch W x 6 point 9 inch D

• Unit Weight 4 point 0 lbs

• Shipping Weight 5 point 8 lbs