dbx 234s Stereo 2/3-Way, Mono 4-Way Crossover with 1/4 in. TRS Connectors
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Description
The dbx 234s is a two-channel active crossover that works as a stereo 2-way, a stereo 3-way or a mono 4-way crossover. Its filters send each amplifier only the band its loudspeaker driver reproduces, so the amplifiers put their power into usable signal.
Linkwitz-Riley filters with a 24 dB per octave slope divide the signal. Every output has its own level control and phase invert switch, and both channels have a 40 Hz low-cut filter and a x10 range switch. The LF Sum switch combines the low frequencies into one subwoofer feed. Inputs and outputs are differentially balanced 1/4 in. TRS jacks.
Features
- Stereo 2-way, stereo 3-way or mono 4-way operation, set with mode switches
- 24 dB per octave Linkwitz-Riley filters
- Low-frequency summed (subwoofer) output
- x10 range switch on both channels
- 40 Hz high-pass (low-cut) filter on both channels
- Phase invert switch on every output
- Individual level control on every output
- Stereo and mono status LEDs show the selected mode
- Differentially balanced 1/4 in. TRS inputs and outputs
- CSA NRTL/C approved and CE compliant
Specifications
- Configuration: Stereo 2-way or 3-way, mono 4-way
- Input Connectors: 1/4 in. TRS
- Input Type: Electronically balanced/unbalanced, RF filtered
- Input Impedance: More than 50k ohms balanced, more than 25k ohms unbalanced
- Maximum Input Level: More than +22 dBu, balanced or unbalanced
- CMRR: More than 40 dB, typically more than 55 dB at 1 kHz
- Output Connectors: 1/4 in. TRS
- Output Type: Impedance-balanced/unbalanced, RF filtered
- Output Impedance: 200 ohms balanced, 100 ohms unbalanced
- Maximum Output Level: More than +21 dBu into 2k ohms or greater
- Bandwidth: 20 Hz to 20 kHz, ±0.5 dB
- Frequency Response: Under 3 Hz to over 90 kHz, +0/-3 dB
- Signal-to-Noise Ratio, Stereo Mode: More than 94 dB (low), 93 dB (mid) and 90 dB (high output), ref. +4 dBu, 22 kHz bandwidth
- Signal-to-Noise Ratio, Mono Mode: More than 94 dB (low and low-mid), 92 dB (high-mid) and 88 dB (high output)
- Dynamic Range: More than 106 dB unweighted, any output
- THD+Noise: Less than 0.004% at +4 dBu, 1 kHz; less than 0.04% at +20 dBu, 1 kHz
- Interchannel Crosstalk: Below -80 dB, 20 Hz to 20 kHz
- Crossover Frequencies, Stereo Mode: Low/mid and low/high: 45 to 960 Hz, or 450 Hz to 9.6 kHz with the x10 switch; mid/high: 450 Hz to 9.6 kHz
- Crossover Frequencies, Mono Mode: Low/low-mid: 45 to 960 Hz, or 450 Hz to 9.6 kHz with the x10 switch; low-mid/high-mid and high-mid/high: 450 Hz to 9.6 kHz
- Filter Type: Linkwitz-Riley, 24 dB/octave, state-variable
- Low-Cut Filter: 40 Hz Butterworth, 12 dB/octave, one switch per channel
- Power Consumption: 15 W
- Power Connector: IEC receptacle
- Operating Temperature: 32 to 113°F (0 to 45°C)
- Dimensions (H x W x D): 1.75 x 19 x 6.9 in. (4.4 x 48.3 x 17.5 cm)
- Weight: 4 lb (1.8 kg)