ครอสโอเวอร์ dbx รุ่น 234 XS (มหาจักร)

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DBX 234S ครอสโอเวอร์ Stereo 2/3 Way, Mono 4-Way Crossover

 The secret to making speakers sound great lies with the crossover you use. With the dbx® 234xs 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 234xs 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 234xs 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 234xs 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 XLR inputs and outputs.

 

XLR 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

Specifications


Input Connectors
XLR

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
XLR

Output Type
Impedance-balanaced/unbalanced, RF filtered

Output Impedance
Balanced 60 ohm, unbalanced 30 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)
设备重量
4.0 lbs. (1.8 kg)
Shipping Weight
5.8 lbs. (2.6 kg)

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