dbx 223XL : 2 / 3 Way Crossover
เลือกใช้งานในแบบ 2-Way Stereo หรือ 3-Way Mono ได้ รองรับระบบ PA ขนาดเล็กถึงขนาดกลางได้ลงตัว วงจรจุดตัด Crossover แบบ Linkwitz-Riley 24 dB/Octave จึงมั่นใจได้ในการตอบสนองความถี่ที่สมบูรณ์ต่อเนื่อง เช่นเดียวกับ Crossover ในระดับ Professional รุ่นใหญ่อื่นๆ พร้อมขั้วต่อ Input / Output Connector แบบ XLR
INPUT
Connectors: XLR
Type: Electronically balanced/unbalanced, RF filtered
Impedance: Balanced >50k ohm, unbalanced >25k ohm
Max Input Level: >+21dBu balanced or unbalanced
CMRR: >40dB, typically >50dB at 1kHz
OUTPUTS
Connectors: XLR
Type: Impedance-balanaced/unbalanced, RF filtered
Impedance: Balanced 200 ohm, unbalanced 100 ohm
Max Output Level: >+21dBu balanced/unbalanced into 2k or greater
SYSTEM PERFORMANCE
Bandwidth: 20Hz to 20kHz, +/-0.5dB
Frequency Response: < 3 Hz to > 90 kHz, +0/-3 dB
Signal-to-Noise: Ref: +4 dBu, 22 kHz measurement bandwidth
Stereo Mode >94dB (Low Output)
>92dB (High Output)
Mono Mode: >94dB (Low Output)
>93dB (Mid Output)
>92dB (High Output)
Dynamic Range: > 114 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/High 45 to 960 Hz or 450 Hz to 9.6 kHz (x10 setting)
Mono Mode: Low/Mid: 45 to 960 Hz or 450 Hz to 9.6 kHz (x10 setting)
Mid/High: 45 to 960 Hz or 450 Hz to 9.6 kHz (x10 setting)
Filter type: Linkwitz-Riley, 24 dB/octave, state-variable
FUNCTION SWITCHES
Front Panel (Low Cut): Activates 40 Hz 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:
x1 / x10:
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: Selects stereo 2-way or mono 3-way operation and disables all LEDs for controls that are non-functional in the selected mode
LF sum: 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 LED
Mono Operation: Yellow LED
Low Cut: Red LED per channel
x10 Green LED per channel
Phase Invert: Red LED per output (2 per channel)
POWER SUPPLY
Operating Voltage: 100 VAC 50/60 Hz; 120 VAC 60 Hz 230 VAC50 HZ
Power consumption: 15W
Main Connection: IEC 320 receptacle
PHYSICAL
Dimensions: 1.75' H X 19' W X 6.9' D (4.4cm x 48.3cm x 17.5cm)
Weight: 3.7 lbs. (1.7 kg)
Shipping Weight: 5.4 lbs. (2.5 kg)
Features
- XLR balanced ins and outs
- Mode switch for stereo 2-way or mono 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
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