Compact 40W 70V/100V Audio Amplifier with Mic Mixer

3 Switchable Inputs — RCA, 3.5mm, TOSLINK — with RS232, IR & Front Panel Control

  • Compact 40W 70V/100V Audio Amplifier with Mic Mixer
  • Compact 40W 70V/100V Audio Amplifier with Mic Mixer
1 2

KanexPro

SKU: AP3DBL

UPC: 814556016077

$419.95
View full details

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

Audio Input:

  • 2 x stereo audio (RCA, 3.5mm)
  • 1 x digital audio (TOSLINK)
  • 1 x MIC (captive screw connector)

Audio Output:

  • 1x mono amplifier (3-pin captive screw connector)

Output Type: 40W, 70V or 100V

Input Impedance for Inputs 1&2: >10KΩ

Output Impedance: 50Ω/stereo, 4~8Ω/Amplifier

Audio General:

Frequency Response:

  • Input: 120Hz ~ 20KHz
  • Output: CMRR >70dB@20Hz~20KHz

Signal to Noise Ratio:  80dB at maximum output

Bandwidth: 120Hz ~ 20KHz

Stereo Channel Separation:

  • Input: >75dB@20Hz to 20KHz
  • Output: THD + Noise 1%(1KHz), 0.3%(20KHz) at nominal level

Voltage Gain: 32dB

Mic Input Impedance: 48V: 35 Kilo Ohms

Mic: 10 Kilo Ohms

Line: 75 Kilo Ohms

Mic Audio Detection Delay: < 1ms

Common Mode Rejection Ratio: >70dB (20Hz- 20KHz)

Control:

  • RS-232 Serial
  • 9-pin female D connector
  • IR remote sensor

Pin Configurations:

  • 2 = TX, 3 = RX, 5 = GND

TCP/IP control through TCPRS2

Power consumption: 3.6 Watts

Power supply: 24V DC

Dimensions: 1.5"x3.78"x3.45" (HWD)

Weight: 0.67 lbs (0.3Kg)

Warranty: 3 Years parts & labor 

Industry Standards & Certifications: 

CE, FCC, UL certified 

 

Product Diagram
Product Panel