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

Parameter	Specification
System Type	Active 3-Way Line Array Element
Model Number	AD FLEX-405A

Acoustic Data

Parameter	Specification
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 Type	Active Bi-Amp DSP (FIR filtering)

Transducers

Component	Details
LF Drivers	4x 5" Neodymium Woofers
HF Drivers	2x 1.4" Neodymium Compression Drivers
Waveguide	Time-Coherent Proprietary Horn

Amplifier & Electronics

Parameter	Specification
Amplifier Type	Class-D with Switch Mode Power Supply (SMPS)
Output Power (RMS)	LF: 600W / HF: 600W (Bi-Amp Total: 1200W)
DSP Processor	56-bit / 192 kHz high-precision chip
Protection	Over-voltage (up to 264V AC), Overload, Output Short, Clip Limiter
S/N Ratio	>95 dBA (A-weighted)
Controls	Single-knob Preset Selector (A/B/C/D)
Preset Configurations	A: Short Throw / B: Mid Throw / C: Long Throw / D: User/Spare
Connectors	1x XLR Input, 1x XLR Link Output

Physical Data

Parameter	Specification
Enclosure Material	Premium Birch Plywood
Finish	High-durability Polyurea Spray Coating with Nano waterproofing
Grille	Heavy-duty powder-coated metal with acoustic foam backing
Ingress Protection	IP45 (Rain-resistant)
Rigging	Integrated steel hardware with lock pins
Dimensions (W x H x D)	45.0 cm x 36.4 cm x 29.5 cm (17.7" x 14.3" x 11.6")
Net Weight	17.0 kg (37.5 lbs)
Shipping Weight	19.0 kg (41.9 lbs)
Shipping Dimensions	52.5 cm x 43.8 cm x 37.4 cm

System Configuration & Accessories

Item	Description
Array Configuration	Max. 12 pcs FLEX-405A per suspended array
Complementary Subwoofer	AD FLEX-405SA (15" Active Subwoofer, flyable)

AD FLEX-405A & 405S

Brand: AD Professional Audio
Product Code: FLEX-405A 405SA
Availability: In Stock

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