JBL Intellivox DSX280 HD - 12 x 4-inch Powered Column Loudspeaker with 130-Degree Horizontal/Adjustable Vertical Coverage and Bottom Amplifier in White Finish

The JBL Professional Intellivox DSX280 HD is a state-of-the-art powered column loudspeaker designed for exceptional speech intelligibility and high-quality audio reproduction in compact and acoustically challenging environments. Featuring twelve custom-designed 4-inch full-range drivers and four individually driven 1-inch horn-loaded dome tweeters, the DSX280 HD achieves precise vertical beam control and enhanced horizontal dispersion for unparalleled clarity in both speech and music applications. Powered by a 16-channel class-D amplifier and supported by an advanced switched-mode power supply, this system ensures consistent performance and reliability over its operational lifespan. With coverage extending up to 35 meters, the DSX280 HD delivers even sound pressure levels throughout its audience area, making it ideal for auditoriums, houses of worship, and other architecturally sensitive spaces.

The DSX280 HD incorporates JBL's Digital Directivity Synthesis (DDS) technology for adjustable vertical beam shaping, combined with a fixed 130-degree horizontal coverage for optimized sound distribution. Its built-in 32-bit floating-point DSP module offers extensive control, including delay, parametric EQ, automatic volume control (AVC), and eight user-definable presets. Advanced surveillance features meet stringent Voice Alarm (VA) requirements, ensuring compliance with life safety standards. Configuration and monitoring are simplified through JBL's WinControl software, enabling seamless integration into complex audio systems. The DSX280 HD's extended high-frequency response up to 18 kHz, coupled with compatibility with JBL subwoofers, makes it a versatile choice for any professional sound installation.

Housed in a slim aluminum enclosure finished in white RAL 9010, the DSX280 HD is designed to blend discreetly into any environment. Rugged yet elegant, it represents a perfect balance of advanced engineering and aesthetic consideration for demanding acoustic scenarios.

Features

• Powered column loudspeaker with twelve 4-inch full-range drivers and four 1-inch horn-loaded dome tweeters
• Adjustable vertical beam shaping with fixed 130-degree horizontal dispersion
• Covers areas up to 35 meters with consistent sound pressure levels
• Frequency response of 130 Hz to 20 kHz, with extended high-frequency performance up to 18 kHz
• Maximum SPL of 93 dB peak (A-weighted at 30 meters)
• 16-channel class-D amplifier with advanced switched-mode power supply for reliable performance
• Built-in 32-bit floating-point DSP with delay, parametric EQ, AVC, and eight user-definable presets
• Designed for life safety applications with integral surveillance and compliance with Voice Alarm standards
• Remote control and monitoring via RS-485 interface and WinControl software
• Slim aluminum enclosure with RAL 9010 white finish for discreet installation
• Dimensions: 110.2 x 5.3 x 3.6 inches, weight: 55 lbs
• Compatible with JBL subwoofers for extended low-frequency performance
• Compliant with EN 62368-1 safety standards and EN 55032 EMC standards

Specifications

Acoustical

• Frequency range
  • 4" loudspeaker: 230 - 10k Hz (+/-3 dB)
  • Horn loaded dome tweeter: 2k - 18k Hz (+/-3 dB)
  • Complete array: 130 - 20k Hz (+/-3 dB)
• Max SPL
  • Continuous: 90 dB SPL (A-weighed at 30 m)
  • Peak: 93 dB SPL (A-weighed at 30 m)
• Coverage
  • Horizontal (fixed): 130 deg (-6 dB, averaged 1k to 4k Hz)
  • Vertical (adjustable): defined by the DDS algorithm
  • Typical throw: 35 m
• Dynamic range: >100 dB

Electrical

• Input
  • Nominal level: 0 dBV (RMS, line input)
  • Maximum level: +19 dBV (peak, line input)
  • Type: dual line input, transformer balanced
  • Impedance (balanced): 6k8 Ω
• DSP module
  • Type: floating point 900 MFLOPS 32 bits
  • Memory: 64 Mb SDRAM + 3 Mb non volatile
  • AD DA conversion:: 24 bits sigma-delta 128 x oversampling
  • Auxilliary processor: 200 nsec single cycle RISC
  • Sample rate: 48.8 kHz (default)
  • Latency: 3.7 ms
  • Signal processing: 21 sec (pre-delay) + 2 x 10 sec (input channel delay), equalizer and compensation filtering, volume, individual RMS and peak limiters on each output, ambient noise level dependent gain adaptation ('fail-safe'), sixteen output filters + delay ringbuffers, dual input configuration
• Control unit
  • Network interface type: serial full-duplex RS-485, autoswitching 115k2, 57k6, 38k4,19k2 baud, optically isolated
  • Maximum number of units8: 126 units
  • Remote surveillance: general status (DSP running, signal present etc.), amplifier monitoring and load monitoring schemes, external pilot tone detection (20k5 28k Hz, level >= -22 dBV), built-in ambient noise microphone, override through, external ambient mic, frost protection, fan control for optional external fan (24 V DC / 3 W max.), thermal overload protection
  • Failure: internal hardware bypass circuit, failure relay (external connector, maskable conditions) SPDT 100 mA / 24 V, jumper configurable for volt-free or impedance-sensing (10k / 20k Ω) operation, failure status can be indicated at front by bi-colour LED
• Power amps
  • Type: PWM (class D)
  • Power: 16 x 40 Wrms(4 ohm)
  • Protection: thermal shutdown if Tjunction> 150 °C, current limiting output stage
• Connectors
  • General type: 5 mm pitch cage clamp (as WAGO series 231)
  • Audio inputs: 6p male
  • RS-485 interface: 5p male
  • Ambient noise and temp sensor: 5p female
  • Failure detect and fan control: 5p female
• PSU
  • Mains: 3p IEC
  • Mains voltage (+5/-10 %)10: 230 or 115 V
  • Mains fuse(s): 1 x 6.3 A (slow type)
  • Power consumption: 84 VA (idle) / 407 VA (male speech STIPA) / 650 VA (full load)
  • Power factor: 0.55 (idle) / 0.60 (full load)
  • Max mains inrush current: 25 A short-time peak (@ 230 V)
  • Protection: thermal protection, output current limiting, under-voltage lock out

General

• Temperature range (ambient): 0 to 40 °C (32 - 104 °F)
• Transducers:
  • 12 x 4" full range
  • 4 x 1" horn loaded dome tweeter
• Dimensions: 110.2 x 5.3 x 3.6 inches
• Default colour
  • Enclosure and grill: RAL 9010 (white)
  • Speaker baffle: RAL 9011 (black)
• Weight: 55 lbs
• Standards
  • Safety: EN 62368-1:2014+A11:2017
  • EMC: EN 55032:2012/AC:2013 class A, EN 55103-2:2009