QSC AC-S4T 4" 2-Way Small Format Surface Mount Loudspeaker

The QSC AcousticCoverage™ AC-S4T is a surface mounted 4” two-way loudspeaker with 70/100 V transformer, suitable for a wide variety of voice paging and background music sound reinforcement applications.

Note: These speakers are priced individually but sold in pairs. For more information please contact your Full Compass Sales Pro.

A high quality 4" (100 mm) polypropylene cone transducer with butyl rubber surround and a 1" (25 mm) aluminium dome tweeter offers pristine clarity through the critical vocal range for increased speech intelligibility. With 130° of conical coverage, the AC-S4T reduces the number of loudspeakers required for even coverage in close proximity.

The UV treated high impact ABS enclosure and ported baffle assembly has been optimally tuned for added musicality, creating low frequency extension down to 70 Hz. To maintain this frequency response, the loudspeaker utilizes a 16W low-saturation and low-loss 70/100 V transformer with varying selectable taps, including an 8 Ω bypass.

The AC-S4T also features brass inserts to accept the included yoke mount and is secured using the supplied thumb bolts. The grille is adorned with a spring loaded and rotatable logo for installation convenience in either horizontal or vertical deployments.

Features

• High quality transducers provide exceptional clarity through the critical voice range
• Improved musicality often not seen in typical BGM class products
• Ported baffle for increased low frequency extension down to 70 Hz
• Low saturation 70/100 V transformer with 8 Ω bypass
• 4-pole Euroblock connector eases system wiring
• Advanced voicing via QSC Intrinsic Correction™, applied using Q-Sys processing or CXD amplifier platforms
• Available in black (RAL 9011) or white (RAL 9010)

Specifications

• Effective frequency range: 70 Hz – 20 kHz
• Rated noise power / voltage: 16W / 11.3 V (rms)
• Broad-band sensitivity: 85 dB SPL
• Coverage angle (-6 dB): 130° conical (500 Hz - 5 kHz)
• Directivity factor (Q): 6
• Directivity Index: 8 dB
• Maximum continuous SPL: 97 dB
• Maximum peak SPL: 103 dB
• Rated impedance: 8 Ω
• Recommended amplifier: 32W
• Transformer taps:
  • 70 V: 16, 8, 4, 2, 1W
  • 100V: 16, 8, 4, 2W
  • 8 Ω bypass
• LF transducer: 4" (100 mm) Polypropylene woofer with 1" (25 mm) voice coil
• HF transducer: 1" (25 mm) Aluminum dome tweeter with 1" (25 mm) voice coil
• Input connector type: Euroblock connector with parallel output
• Enclosure material: UV treated, high impact ABS polymer
• Grille material: Powder coated steel
• Yoke material: Powder coated steel, brass inserts
• Enclosure Details:
  • Ingress protection: IP-44
  • Operating environment: Designed for indoor use
  • Operating Temperature Range: -4°F to 122°F (-20°C to 50°C)
• Net weight: 5.3 lbs. (2.4 kg)
• Product dimensions: 9.1" x 6.3" x 5.9" (230 x 160 x 150 mm)
• Shipping weight: 11.8 lbs. (5.3 kg) (pair packed)
• Shipping dimensions: 11.5" x 8.1" x 14.5" (292 x 206 x 368 mm) (pair packed)
• Included accessories: Yoke mount system, euroblock connector