The 234xs from dbx is a dual channel, stereo 2/3-way or mono 4-way crossover. A crossover is essential for efficient PA operation because it filters the full band input signal into specific frequencies that match a speaker’s optimum frequency-reproduction range. This leaves the amplifier free to use its full power on the usable signal, eliminating distortion and delivering clear sound.
The unit features Linkwitz-Riley 24dB per octave filters, independent output gain controls for level matching, output phase inversion, 40Hz low cut filter, and optional mono summing of the low frequency (subwoofer) output. Quality components and meticulous attention to detail offers exceptional sound and rugged reliability, while exuding great precision from the solid “click” controls to the high quality XLR inputs and outputs.
Features
Specifications
| Filter Type | Linkwitz-Riley, 24 dB/octave, state-variable |
| Operating Modes | Stereo 2/3-way, switchable to mono 4-way |
| Crossover Frequencies | Stereo Mode – Low/High: 45 to 960Hz or 450Hz to 9.6kHz (x10 setting) Stereo Mode – Low/Mid: 45 to 960Hz or 450Hz to 9.6kHz (x10 setting) Stereo Mode – Mid/High: 450Hz to 9.6kHz Mono Mode – Low/Mid: 45 to 960Hz or 450Hz to 9.6kHz (x10 setting) Mono Mode – Mid/High: 45 to 960Hz or 450Hz to 9.6kHz (x10 setting) Mono Mode – High-Mid/High: 450Hz to 9.6kHz |
| Inputs | 2 x XLR (pin 2 hot) |
| Input Impedance | 50kΩ balanced, 25kΩ unbalanced |
| Maximum Input Level | >+21dBu balanced or unbalanced |
| Outputs | 6 x XLR (pin 2 hot) |
| Output Impedance | 60Ω balanced, 30Ω unbalanced |
| Maximum Output Level | >+20dBu balanced/unbalanced into 600Ω or greater |
| Frequency Response | FR: <3Hz to >90kHz, +0/-3.0dB Bandwidth: 20Hz to 20kHz, +0/-0.5dB |
| Dynamic Range | >106dB unweighted, any output |
| Noise | SNR 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) |
| THD + N | <0.004% @ +4dBu, 1kHz <0.04% @ +20dBu, 1kHz |
| Crosstalk | <-80dB, 20Hz to 20kHz |
| CMRR | >40dB, typically >55dB @ 1kHz |
| Switches | Low Cut (front panel) Phase Invert (front panel) x10 (rear panel) Mode (rear panel) LF sum (rear panel) |
| Indicators | Stereo Operation Mono Operation Low Cut x10 Phase Invert |
| Operating Temperature | 32°F to 113°F (0°C to 45°C) |
| Power Requirements | 100VAC~50/60Hz, 120VAC~60Hz 15W power consumption |
| Dimensions | 19 x 6.9 x 1.75″ (483 x 175 x 45mm) |
| Weight | 4.0 lb (1.8kg) |
| Package Weight | 7.1 lb |
| Box Dimensions (LxWxH) | 22 x 11.3 x 2.6″ |
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