DBX 234s

More sound to your amps and speakers

The secret to making speakers sound great lies with the crossover you use. With the dbx® 234s Crossover you'll get great performance, ultra low-noise, rugged reliability and four decades of dbx knowledge and expertise in building the world's finest processors. 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.

The dbx 234s 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.

INPUT

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

OUTPUTS

Connectors: 1/4" TRS

Type: Impedance-balanaced/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: 32°F to 113°F (0°C to 45°C)

PHYSICAL

Dimensions: 1.75" H X 6.9" D X 19" W (4.5cm x 17.5cm x 48.26cm)

Weight:4.0 lbs. (1.8 kg)

Shipping Weight:5.8 lbs. (2.6 kg)