Q-SYS 4.5" 2-Way Zero-Bezel Ceiling Loudspeaker

Enhance the sound in your installation with this pair of white AcousticDesign 4.5" 2-Way, , Zero-Bezel Ceiling Loudspeakers from QSC. Designed for foreground and background sound reinforcement applications, each speaker has a 70/100V multi-tap transformer that can also be bypassed for use with 16-ohm speaker systems.

Each speaker features a 4.5" weather-treated paper cone woofer and a 0.75" aluminum dome tweeter, which is positioned on a 150° DMT waveguide. With a frequency response of 70 Hz to 20 kHz and a max SPL of 108 dB, they are suitable for use in restaurants, retail stores, educational facilities, airports, and train stations. Each speaker includes a C-ring, tile rail, rail screws, a Euroblock connector, a cutout template, and a grille.

Key Features

• Consistent tonal characteristics across the entire AcousticDesign™ family in both surface or ceiling applications
• Sleek zero bezel design for modern architectural needs
• Directivity Matched Transition^® (DMT) waveguide ensures smooth, uniform frequency response over the coverage area
• Snap-fit magnetic grille
• 3x double stepped, long travel dog-ear blind mount system
• Advanced Intrinsic Correction™ voicings available via Q-SYS™
• Low-saturation and low-loss 70/100V transformers with 16Ω bypass
• Blemish-free removable logo
• Removable conduit cover plate, also available as accessory for pre-install wiring
• Available in signal white (RAL 9003)
• Complete EASE, CAD, & BIM information available online

Technical Specifications

• Effective frequency range: 70 Hz – 20 kHz
• Rated noise power / voltage: 30 watts / 22 volts (rms)
• Sensitivity [dB]: 87.5
• Sensitivity at 4m, 100V maximum tap: TBD
• Rated coverage (-6 dB): 150° conical DMT™
• Directivity factor (Q): 4.5
• Directivity index (DI) [dB]: 6.5
• Maximum continuous SPL [dB]: 102
• Maximum peak SPL [dB]: 108
• Nominal impedance [ohms]: 16
• Recommended amplifier: 60 watts
• Transformer taps / impedance:
  • 16Ω (in bypass setting)
  • 3.75W (70V); 7.5W (100V) Tap: 1333Ω
  • 7.5W (70V); 15W (100V) Tap: 667Ω
  • 15W (70V); 30W (100V) Tap: 333Ω
  • 30W (70V); N/A (100V) Tap: 167Ω
• LF transducer: 114 mm [4.5-inch] weather resistant paper cone woofer
• HF transducer: 19 mm [0.75-inch] aluminum dome tweeter
• Input connector type: Euroblock connector with parallel output
• Enclosure material: ABS baffle on powder coated steel back can
• Grille material: Powder coated steel
• Ingress protection: IP-34
• Operating environment: Designed for indoor use
• Operating temperature range: -20 to 50° C [-4 to 122° F]
• Cutout dimension: Ø 190 mm [Ø 7.48-inch]
• Net weight: 2.9 kg [6.4 lb]
• Product dimensions (Diameter x Height): Ø 230 x 176 mm [Ø 9.06 x 6.93-inch]
• Shipping weight: 9.3 kg [20.5 lb] (pair packed)
• Shipping dimensions (H x W x D): 279 x 711 x 318 mm [11 x 28 x 12.5-inch] (pair packed)
• Included accessories: C-ring and tile rails, rail screws, euroblock connector, cut-out template, tether grille
• Optional accessories: AD-MR4 (pre-install mud ring), 190 mm cutout size
• Safety Agency: UL1480, UL2043, NFPA90, NFPA70 suitable for use in air handling spaces. Transformer UL registered per UL1876, ROHS, C-Tick X000, CE compliant. Baffle meets UL94-V0 and UL94-5VB flammability rating; in accordance with IEC60849 / EN60849 systems.