dbx 234s Multi-channel Crossover

The dbx 234s Stereo 2/3 Way Mono 4-Way Crossover is a dual channel crossover with all the features you would expect from a professional product. It features Linkwitz-Riley 24dB per octave filters, independent output gain controls for level matching, output phase inversion, 40 Hz low cut filter, and optional mono summing of the low frequency (subwoofer) output. Everything in the design exudes great precision from the solid "click" controls to the high quality 1/4" TRS inputs and outputs.

The 234s uses precision filters to separate the audio signal and direct the correct frequencies to your loudspeaker drivers. By directing only the specific frequency bands to each speaker driver the 234s leaves your amplifiers free to use their full power on the usable signal eliminating distortion and giving your PA system a cleaner and better sound.

FEATURES

• TRS differentially balanced 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
• 40Hz high pass (low cut) filter both channels
• Phase reverse switch on all outputs
• Individual level controls on all outputs
• 24dB per octave Linkwitz-Riley filters (the professional standard)
• Stereo/Mono status LEDs indicate the selected mode
• dbx 2 year parts and labor as standard
• CSA NRTL/C approved
• CE compliant
• Connectors: 1/4" TRS
• Type: Electronically balanced/unbalanced, RF filtered
• Impedance: Balanced >50k ohm, unbalanced >25k ohm
• Max Input Level: >+22dBu balanced or unbalanced
• CMRR: >40dB, typically >50dB at 1kHz

SPECIFICATIONS

• OUTPUTS
• Connectors: 1/4" TRS
• Type: Impedance-balanced/unbalanced, RF filtered
• Impedance: Balanced 200 ohm, unbalanced 100 ohm
• Max Output Level: >+21dBu balanced/unbalanced into 2k or greater
• CROSSOVER FREQUENCIES
• Stereo Mode: Low/High 45 to 960 Hz or 450 Hz to 9.6 kHz (x10 setting)
• Low/Mid 45 to 960 Hz or 450 Hz to 9.6 kHz (x10 setting)
• Mid/High: 450Hz to 9.6kHz (x10 setting)
• 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
• Filter type: Linkwitz-Riley, 24 dB/octave, state-variable
• FUNCTION SWITCHES
• Front Panel (Low Cut): Activates 40Hz Butterworth, 12 dB/octave high-pass filter, one switch per channel
• Phase Invert: Inverts the phase at the output, one switch per output
• Rear Panel: x10: Multiplies crossover frequency range by 10, one switch per channel
• Mode: Selects stereo/mono and 2/3/4-way operation
• LF sum: Selects normal (stereo) or mono-summed low frequency operation
• INDICATORS
• Stereo Operation: Green LED
• Mono Operation: Yellow LED
• Low Cut: Red LED per channel
• x10 Green LED per channel
• Phase Invert: Red LED per output (3 per channel)
• SYSTEM PERFORMANCE
• Bandwidth: 20Hz to 20kHz, +0/-0.5dB
• Frequency Response: < 3 Hz to > 90 kHz, +0/-3 dB
• Dynamic Range: > 106 dB, unweighted, any output
• Signal-to-Noise: Ref: +4 dBu, 22 kHz measurement bandwidth
• THD + Noise: < 0.004% at +4 dBu, 1 kHz
  < 0.04% at +20 dBu, 1 kHz
  Interchannel Crosstalk: < -80 dB, 20Hz to 20 kHz
  Common Mode Rejection: Ref (+4dBu, 22kHz measurement bandwidth):Stereo Mode >94dB (Low Output); >93dB (Mid Output); >90dB (High Output)Mono Mode: >94dB (Low Output); >94dB (Low/Mid Output); >92dB (High/Mid Output); >88db (High Output)
• POWER SUPPLY
• Operating Voltage: 100-120 VAC 50/60Hz; 120 VAC 60Hz 230 VAC 50/60Hz
• Power requirements: 15W
• Operating Temperature: 32F to 113F (0C to 45C)
• PHYSICAL
• Dimensions: 1.75" H X 6.9" D X 19" W (4.5cm x 17.5cm x 48.26cm)
• Weight: 4.0 lb. (1.8 kg); Shipping Weight: 5.8 lb. (2.6 kg)