Mini amplificador de audio de 3 entradas con mezclador de micrófono
3 Switchable Inputs — RCA, 3.5mm, TOSLINK — with RS232, IR & Front Panel Control
Routes audio from any combination of analog or digital sources through a single 40-watt amplifier output switchable between 70V and 100V distributed speaker systems — with built-in MIC mixing, ducking, Bass/Treble EQ, and 48V phantom power in a compact desktop chassis. Three switchable inputs (dual-mono RCA, 3.5mm stereo, and TOSLINK optical) handle the full range of source types found in installed AV environments.
Designed for classrooms, conference rooms, lecture halls, restaurants, and hospitality spaces, the AP3DBL supports RS232 serial control with 16 addressable ID codes for multi-unit installations, IR remote control, and front panel operation. MIC input accepts condenser, dynamic, and wireless microphone types with balanced/unbalanced signal support and automatically ducks line audio when MIC signal is detected.
- Fast-switching 3 audio inputs: dual-mono RCA (Input 1), 3.5mm stereo (Input 2), TOSLINK digital optical (Input 3)
- Mono 40W amplifier output switchable between 70V and 100V distributed speaker systems
- 3-level MIC input — supports condenser (48V phantom), dynamic, and wireless/line microphone types
- MIC port supports balanced and unbalanced signals with effective external noise suppression
- Ducking function — auto-attenuates line audio when MIC signal is detected; recovers after 5 seconds of silence
- 16 addressable ID codes (0–F hex) for RS232 multi-unit control loops
- Volume, Bass, and Treble independently adjustable via front panel buttons, IR remote, and RS232
- Stereo line audio output for daisy-chain feed to additional zone amplifiers or recorders
- RS232 control via 3-pole captive screw connector (9600 baud, 8N1)
- ID loop pass-through for multi-unit RS232 chaining
- IR remote and external IR receiver support
- 48V phantom power for condenser microphone supply
- Dual-mono output capability
- LED indicators for power and input selection status
- Convection cooled, antistatic case design
- Locking DC power connector (24V DC adapter included)
- CE, FCC, UL certified
Entrada de audio:
- 2 x audio estéreo (RCA, 3,5 mm)
- 1 x audio digital (TOSLINK)
- 1 x MIC (conector de tornillo cautivo)
Salida de audio:
- 1 amplificador mono (conector de tornillo cautivo de 3 pines)
Tipo de salida: 40 W, 70 V o 100 V
Impedancia de entrada para las entradas 1 y 2 : >10 KΩ
Impedancia de salida: 50 Ω/estéreo, 4~8 Ω/amplificador
Audio General:
Respuesta de frecuencia:
- Entrada: 120 Hz ~ 20 KHz
- Salida: CMRR >70dB a 20 Hz ~ 20 KHz
Relación señal/ruido: 80 dB a máxima salida
Ancho de banda: 120 Hz ~ 20 KHz
Separación de canales estéreo:
- Entrada: >75dB a 20 Hz a 20 KHz
- Salida: THD + Ruido 1%(1KHz), 0,3%(20KHz) a nivel nominal
Ganancia de voltaje: 32dB
Impedancia de entrada de micrófono: 48 V: 35 kiloohmios
Micrófono: 10 kilo ohmios
Línea: 75 Kilo Ohmios
Retardo de detección de audio del micrófono: <1 ms
Relación de rechazo de modo común: >70 dB (20 Hz-20 KHz)
Control:
- Serie RS-232
- Conector D hembra de 9 pines
- Sensor remoto por infrarrojos
Configuraciones de pines:
- 2 = TX, 3 = RX, 5 = GND
Control TCP/IP a través de TCPRS2
Consumo de energía: 3,6 vatios
Fuente de alimentación : 24 V CC
Dimensiones: 1,5" x 3,78" x 3,45" (alto x ancho x profundidad)
Peso: 0,67 libras (0,3 kg)
Garantía: 3 años en piezas y mano de obra
Estándares y certificaciones de la industria:
Certificación CE, FCC y UL
Buying for resale, a project, or your own site?
Trade accounts see net pricing, stock and one-click reorder from past jobs. Dealers, integrators, businesses, schools and public bodies all qualify. Approval is usually the same working day.