info@kps.com.vn
+ 84 903 709 019
LBB1925/10
FEATURE
- Six-zone system pre-amplifier, with single or dual channel operation
- Two input channels for call stations
- Universal input for microphone/line, with speech optimized tone control
- Three inputs for BGM selection and music optimized tone control
- Front panel zone selection for BGM and call station zone selection for calls
- PC and trigger inputs for automated calls, alarm tones and chimes to selected zones
TECHNICAL SPECIFICATIONS
|
Category |
Specification |
|
Electrical |
|
|
Mains Power Supply |
Voltage: 230/115VAC, ±15%, 50/60 Hz |
|
Current Inrush: 230/115 VAC, 1.5/3 A |
|
|
Max Power Consumption: 25 VA |
|
|
Battery Power Supply |
Voltage: 24 VDC, +10% / -15% |
|
Current Max: 1 A |
|
|
Performance |
Frequency Response: 50 Hz to 20 kHz |
|
Distortion: <0.5% |
|
|
Bass Control: ±10 dB @ 100 Hz |
|
|
Treble Control: ±10 dB @ 10 kHz |
|
|
Channel Separation: >70 dB @ 1 kHz |
|
|
Priority Mute: >40 dB |
|
|
Dynamic Range: 100 dB |
|
|
Inputs |
Mic/Line Input |
|
Connectors: 5‑pin DIN, 3‑pin XLR, balanced, with phantom power |
|
|
Sensitivity: 1 mV (mic), 200 mV (line) |
|
|
Impedance: >1 kohm (mic); >5 kohm (line) |
|
|
S/N (flat at max volume): >63 dB (mic); >70 dB (line) |
|
|
S/N (flat at min volume/muted): >75 dB |
|
|
CMRR: >40 dB (50 Hz – 20 kHz) |
|
|
Headroom: >25 dB |
|
|
Speech Filter: -3 dB @ 315 Hz, high-pass, 6 dB/oct |
|
|
Phantom Power Supply: 16 V via 1.2 kohm, (mic mode only) |
|
|
Line Input |
|
|
Connectors: Cinch, stereo converted to mono, unbalanced |
|
|
Sensitivity: 200 mV |
|
|
Impedance: 22 kohm |
|
|
S/N (flat at max volume): >70 dB |
|
|
S/N (flat at min volume/muted): >75 dB |
|
|
Headroom: >25 dB |
|
|
Outputs |
Master Output |
|
Connector: 3-pin XLR, balanced |
|
|
Nominal Level: 1 V |
|
|
Impedance: <100 ohm |
|
|
Tape Output |
|
|
Connector: Cinch, 2 x mono |
|
|
Nominal Level: 350 mV |
|
|
Impedance: <1 kohm |
|
|
Headphone Output |
|
|
Connector: 6.3 mm jack stereo, signal mono |
|
|
Nominal Level: 3 V |
|
|
Impedance: <100 ohm |
|
|
Relays |
Zone Relays: 5 A |
|
Contacts Voltage: 250 V |
|
|
Contacts Current: 8 A |
|
|
Interconnection |
Input / Emergency |
|
Connector: 3-pin XLR, balanced |
|
|
Sensitivity: 200 mV (interconnection), 100 mV to 1 V adjustable (emergency) |
|
|
VOX Threshold: 45 mV (emergency) |
|
|
Output |
|
|
Connector: 3-pin XLR, balanced |
|
|
Nominal Level: 200 mV |
|
|
Impedance: <100 ohm |
|
|
Relay Contacts: 30 V, 1 A |
|
|
DC Supply Output Voltage: 24 V, 250 mA max |
|
|
Mechanical |
Dimensions (H x W x D): 100 x 430 x 270 mm |
|
(19" wide, 2U high) |
|
|
Weight: Approx. 5 kg |
|
|
Mounting |
Standalone, 19" Rack |
|
Color |
Charcoal |
|
Environmental |
Operating Temperature: -10 ºC to +55 ºC (14 ºF to +131 ºF) |
|
Storage Temperature: -40 ºC to +70 ºC (-40 ºF to +158 ºF) |
|
|
Relative Humidity: <95% |
