AD FLEX-405A & 405S
AD FLEX-405A & 405S  AD FLEX-405A & 405S  AD FLEX-405A & 405S 

AD FLEX-405A & 405S

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AD FLEX-405A

Touring-Level Active 3-Way Line Array System

Product Overview

The AD FLEX-405A is a compact, high-performance active line array element designed for touring professionals and fixed installations requiring pristine vocal clarity and high SPL. It features a proprietary 3-way design utilizing four 5" neodymium woofers and two 1.4" compression drivers mounted on a precision time-coherent waveguide. Powered by a 1200W Class-D bi-amplified module with advanced FIR filtering, the system delivers transparent sound with exceptional phase coherence. With an IP45 rating and lightweight birch plywood construction, the FLEX-405A is built to perform in any environment.


Key Features

  • High-Definition Audio: Exclusive FIR filtering technology ensures transparent sound, minimal phase distortion, and perfect stereo imaging.

  • Powerful & Efficient: 1200W RMS Class-D bi-amplification driving 4x 5" neodymium woofers and 2x 1.4" neodymium compression drivers.

  • Versatile Deployment: Integrated rigging hardware allows for suspended (up to 12 pcs) or pole-mount configurations with multi-vertical angle adjustments.

  • Built for the Elements: IP45 rating with nano-coated drivers and waterproofed electronics for reliable outdoor use.

  • User-Friendly Setup: Four factory presets (Short/Mid/Long throw) accessible via single-knob control for rapid system configuration.


Technical Specifications

ParameterSpecification
System TypeActive 3-Way Line Array Element
Model NumberAD FLEX-405A

Acoustic Data

ParameterSpecification
Frequency Response (-10 dB)70 Hz – 20 kHz
Maximum SPL (Peak)129 dB
Dispersion (H x V)120° x 10° (adjustable vertical angles via rigging)
Crossover TypeActive Bi-Amp DSP (FIR filtering)

Transducers

ComponentDetails
LF Drivers4x 5" Neodymium Woofers
HF Drivers2x 1.4" Neodymium Compression Drivers
WaveguideTime-Coherent Proprietary Horn

Amplifier & Electronics

ParameterSpecification
Amplifier TypeClass-D with Switch Mode Power Supply (SMPS)
Output Power (RMS)LF: 600W / HF: 600W (Bi-Amp Total: 1200W)
DSP Processor56-bit / 192 kHz high-precision chip
ProtectionOver-voltage (up to 264V AC), Overload, Output Short, Clip Limiter
S/N Ratio