สั่งซื้อ
Crossover 3way
dbx 234xs Stereo 3way,Mono 4way Crossover
ครอสโซเวอร์ 3ทางสเตอริโอ 4ทางโมโน
OVERVIEWS
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
- 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) |
