The dbx 234s crossover is engineered to maximize the performance of your amplifiers and loudspeakers. With over four decades of dbx expertise, this processor delivers precision audio filtering, ultra-low noise, and rugged reliability. By directing specific frequency bands to each speaker driver, the 234s ensures your system operates cleanly and efficiently, reducing distortion and giving your PA system a fuller, more transparent sound.

This dual-channel crossover supports stereo 2-way, stereo 3-way, or mono 4-way operation, making it versatile for a variety of professional audio applications. The 234s features Linkwitz-Riley 24dB/octave filters, independent output gain controls, phase reversal, and a 40Hz high-pass (low cut) filter. Optional mono summing for subwoofer outputs adds flexibility for multi-speaker setups.

High-quality TRS differentially balanced inputs and outputs, precise control "click" knobs, and stereo/mono status LEDs make this crossover both professional-grade and user-friendly.

DBX 234s Features

  • TRS differentially balanced inputs and outputs

  • Stereo 2-way / 3-way and Mono 4-way modes

  • Low frequency summed (subwoofer) output

  • x10 range switch on both channels

  • 40Hz high-pass (low cut) filter on both channels

  • Phase reverse switch on all outputs

  • Independent level controls on all outputs

  • Linkwitz-Riley 24dB/octave filters (professional standard)

  • Stereo/Mono status LEDs indicate selected mode

  • Rugged design with 2-year parts & labor warranty

  • CSA NRTL/C approved and CE compliant

DBX 234s Specifications

Input Connectors 1/4" TRS
Input Type Electronically balanced/unbalanced, RF filtered
Input Impedance Balanced >50k ohm, unbalanced >25k ohm
Max Input >+22dBu balanced or unbalanced
CMRR >40dB, typically >55dB at 1kHz
Output Connectors 1/4" TRS
Output Type Impedance-balanaced/unbalanced, RF filtered
Output Impedance Balanced 200 ohm, unbalanced 100 ohm
Max Output >+21dBu balanced/unbalanced into 2k ohms or greater
Bandwidth 20Hz to 20kHz, +/-0.5dB
Frequency Response < 3 Hz to > 90 kHz, +0/-3 dB
Signal to Noise Ratio Ref: +4 dBu, 22 kHz measurement bandwidth
Signal-to-Noise (Stereo Mode) >94dB (Low Output), >93dB (Mid Output), >90dB (High Output)
Signal-to-Noise (Mono Mode) >94dB (Low Output, Low/Mid Output); >92dB (High/Mid Output); >88dB (High Output)
Dynamic Range > 106 dB, unweighted, any output
THD+Noise < 0.004% at +4 dBu, 1 kHz; < 0.04% at +20 dBu, 1 kHz
Interchannel Crosstalk < -80 dB, 20 Hz to 20 kHz
Crossover Frequencies (Stereo Mode) Low/Mid: 45 to 960 Hz or 450 Hz to 9.6 kHz (x10 setting); Low/High: 45 to 960 Hz or 450 Hz to 9.6 kHz (x10 setting); Mid/High 450Hz to 9.6kHz (x10 setting)
Crossover Frequencies (Mono Mode) Low/Low-Mid: 45 to 960 Hz or 450 Hz to 9.6 kHz (x10 setting); Low-Mid/High-Mid: 450 Hz to 9.6 kHz; High-Mid/High: 450 Hz to 9.6 kHz
Crossover Filter Type Linkwitz-Riley, 24 dB/octave, state-variable
Low cut Switch Activates 40 Hz Butterworth, 12 dB/octave high-pass filter, one switch per channel.
Phase Invert Switch Inverts the phase at the output, one switch per output.
x1 / x10 Switch Multiplies the low-high(mono: low/mid and high/mid) crossover frequency range of the front-panel markings by a factor of 1 or 10, one switch per channel.
Mode Switch Selects stereo/mono and 2/3/4-way operation
LF Sum Switch Selects normal (stereo) or mono-summed low frequency operation and disables Ch 2’s low output phase invert LED to indicate that this output is not operational in the LF sum mode.
Indicators Stereo Operation (Green); Mono Operation (Yellow); Low Cut (Red-per channel); x10 (Green-per channel); Phase Invert (Red-per output)
Operating Voltage 100-120 VAC 50/60Hz; 120 VAC 60Hz 230 VAC 50/60Hz
Operating Temperature 32°F to 113°F (0°C to 45°C)
Power Consumption 15W
Power Connector IEC receptacle
Dimensions 1.75" H X 19" W X 6.9" D (4.4cm x 48.3cm x 17.5cm)
Unit Weight 4.0 lbs. (1.8 kg)
Shipping Weight 5.8 lbs. (2.6 kg)
List price: $400.00
Price: $320.00
SKU: DBX234SV
Catalog: 
Processors & DSP
Brand: 
DBX
Dimensions: 22 in × 12 in × 3 in
Weight: 8 lb