QSC AC-S4T User Manual

AcousticCoverage™ Series

AC-S4T

Small format, surface mount loudspeaker

AC-S4T

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 70/100V transformers with 8 ohm bypass.

• 4-pole Euroblock connector eases system wiring.

• Advanced voicing via QSC Intrinsic Correction™, applied using the Q-SYS™ Platform or CXD Series amplifier platforms.

• Available in black (RAL 9011) or white (RAL 9010)

• Complete EASE, CAD & BIM information available online

Wide Area Paging ∙ Background Music ∙ Distance Conferencing Reinforcement∙ Healthcare Facilities ∙ Concourses ∙ Transportation Terminals ∙ Ancillary Support in Larger Systems

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

AcousticCoverage offer integrators a cost effective solution for applications where voice reinforced coverage is of primary concern, while providing improved musicality often not seen in typical BGM class products.

A high quality 100 mm [4 in] polypropylene cone transducer with butyl rubber surround and a 25 mm [1 in] aluminium dome tweeter offers pristine clarity through the critical vocal range for increased speech intelligibility. With 130 degrees 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 AC-S4T utilizes a 16-watt low-saturation and low-loss 70/100V transformer with varying selectable taps, including an 8Ω bypass.

™

Series is designed to

To further enhance performance and speed of install with optimum result, advanced voicing via QSC Intrinsic Correction™ techniques are obtainable usingthe Q-SYS™ Platform and in CXD Series amplifiers for a complete QSC systems solution.

Installers will appreciate the 4-pole Euroblock connector for loop thru wiring, located on the rear of the enclosure. Eliminating the termination hassles of star topology wiring designs, the generous Euroblock of the AC-S4T can accept four 18AWG pairs.

The AC-S4T 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.

The AC-S4T is available in white (RAL

9010) or black (RAL 9011) to match complimenting QSC product families. The AC-S4T may also be painted to match any décor.

To assist in successful systems integration, complete EASE, CAD, and BIM files are available for download online.

AC-S4T Details

1k 10 k

10 0

Fre quen cy (Hz)

50 0 2k 5k 20 k

40 0

30 0

20 0

Horizontal

Beamwidth (-6 dB) (deg)

Vertical

10 0 1k 10 k

10 0

Fre que nc y (H z)

Sound Pressure, Level (dB)

Impedance, Amplit ude (ohm)

20 50 20 0 50 0 2k 5 k 20 k

Frequency Response (Raw)

Frequency Response (Intrinsic Correction™)

Impedance (8 Ohm Bypass)

THIS DOCUMENT CONTAINS PROPRIETARY INFORMATION WHICH IS THE PROPERTY OF QSC AUDIO PRODUCTS, THAT MAY NOT BE DISCLOSED, REPRODUCED OR USED WITHOUT EXPRESS WRITTEN CONSENT FROM QSC AUDIO PRODUCTS.

Beamwidth: Impedance / Frequence Response:

Dimensions: Specifications:

166 mm

[6.5 in]

230 mm

[9.1 in]

160 mm

[6.3 in]

1675 MacArthur Boulevard • Costa Mesa, CA 92626 • Ph: 800/854-4079 or 714/957-7100 • Fax: 714/754-6174

AcousticCoverage, Intrinsic Correction and Q-SYS are trademarks of QSC. All other trademarks are the property of their respective owners. Patents may apply or be pending.

150 mm

[5.9 in]

System Details AC-S4T

Effective frequency range

Rated noise power / voltage

Broad-band sensitivity

70 Hz – 20 kHz

16 watts / 11.3 volts (rms)

85 dB SPL

Coverage angle (-6 dB) 130° conical (500 Hz - 5 kHz)

Directivity factor (Q) 6

Directivity Index 8 dB

Maximum continuous SPL

Maximum peak SPL

Rated impedance 8 ohms

Recommended amplifier 32 watts

Transformer taps 70 V: 16, 8, 4, 2, 1 watts

LF transducer 100 mm [4 in] Polypropylene woofer

HF transducer 25 mm [1 in] Aluminium dome tweeter

97 dB

103 dB

100V: 16, 8, 4, 2 watts 8 ohm bypass

25 mm [1 in] voice-coil

Input connector type Euroblo ck connec tor with p arallel ou tput

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 -20 to 50° C [-4 to 122° F]

Net weight 2.4 kg [5.3 lb]

Product dimensions 230 x 160 x 150 mm [9.1 x 6.3 x 5.9 in]

Shipping weight 5.3 kg [11.8 lb] (pair packed)

Shipping dimensions 292 x 206 x 368 mm [11.5 x 8.1 x 14.5 in] (pair packed)

Included accessories Yoke mount system, euroblock connector

Free-field, -10 dB from on-axis sensitivity

IEC60268-1 noise signal for 2 hours

On-Axis, free-field sensitivity, 2.83V, 1 m

Calculated from rated noise voltage and sensitivity

As part of QSC’s ongoing commitment to product development, specifications are subject to change without notice.

please recycle

AC-S4T Spec Sheet 12/02/2016