QSC AC MR4

Wide Area Paging ∙ Background Music ∙ Distance Conferencing

Reinforcement∙ Healthcare Facilities ∙ Concourses ∙ Transportation

Terminals ∙ Ancillary Support in Larger Systems

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

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™ Series is designed to

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.

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.

Small format, surface mount

loudspeaker

AcousticCoverage™ Series

AC-S4T

AC-S4T Details

1k 10k

100

Frequency (Hz)

500 2k 5k 20k

400

300

200

70

50

Horizontal

Beamwidth (-6 dB) (deg)

Vertical

Beamwidth: Impedance / Frequence Response:

Dimensions: Specifications:

100 1k 10k

100

90

80

70

60

50

100

80

60

40

20

0

Frequency (Hz)

Sound Pressure, Level (dB)

Impedance, Amplitude (ohm)

20 50 200 500 2k 5k 20k

95

85

65

55

90

70

30

10

Frequency Response (Raw)

Frequency Response (Intrinsic Correction™)

Impedance (8 Ohm Bypass)

AC-S4T Spec Sheet 12/02/2016