QSC AD-C.SUB Data Sheet

AcousticDesign™ Series
AD-C.SUB

6.5-inch dual voice-coil, small
format ceiling subwoofer

AD-C.SUB

Features

• Consistent tonal characteristics
across the entire AcousticDesign
Series for surface, ceiling, and
pendant applications

• Refined depth and clarity even at
low volume settings

• Mix-and-match capable, any
subwoofer with any satellite in the
AD Series SUB/SAT line

• Dual voice coil for improved
thermal dissipation and higher
output

• Low-saturation and low-loss
70 / 100 V transformers with 4 Ω
bypass

• Snap-fit magnetic grill

• 4x built-in high-pass filtered
outputs

• Locking 4-pole Euroblock
connectors

• Removable conduit cover plate

Background Music Applications ∙ Retail ∙ Restaurants ∙ Coffee

Shops ∙ Fine Dining ∙ Hospitality ∙ Commercial Spaces

The QSC AD-C.SUB is part of the
AcousticDesign™ Series SUB/SAT
loudspeaker line which are ideally suited for
background music applications that require
refined depth and clarity even at lower
volume settings.

The AcousticDesign Series offers integrators
a premium quality installed sound solution
where performance, consistent coverage,
and aesthetics are paramount. Specifically
designed to maintain a consistent tonal
characteristic across the entire family in
ceiling, surface, and pendant enclosures,
the AcousticDesign Series allows integrators
seamless transitions within blended
installations.

The AcousticDesign Series SUB/SAT
loudspeakers have been specifically
designed to be mix-and-match capable.
Any combination of satellites may be paired
with any subwoofer in the SUB/SAT line.

The AD-C.SUB features a high quality

6.5-inch weather treated paper cone woofer
on a dual voice coil for improved thermal
dissipation and higher output within a small
form factor.

The inputs and outputs are located behind
a removable conduit cover plate with
captive screws to prevent loss during
installation. All in-thru and outputs are
terminated to locking 4-pole Euroblock style
connectors capable of 12AWG (2 mm) wire
thickness.

To retain their stylish aesthetics, the rugged
ABS baffle is further protected by using UV
inhibitors that prevent discoloration and by
a powder coated steel back can. The
magnetic grille features a stick-on logo that
can be removed blemish-free for
installations where branding is not
permitted.

Installers will appreciate the 4x double
stepped, long travel dog-ear blind mounting
system, which captures from 0 - 2 in of
ceiling thickness.

Intrinsic Correction™ voicings that optimize
performance and speed the install process
are easily deployed via the MP-M Series
music and paging mixers as well as Q-SYS
Platform, including CXD-Q Series amplifiers,
as part of a complete QSC systems
solution.

• Blemish-free removable logo

• 4x double stepped, long travel
dog-ear blind mount system

• Intrinsic Correction™ voicings
available via MP-M Series mixers
and the Q-SYS Platform, including
CXD-Q Series amplifiers

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

• Complete EASE, CF2, CAD, &
BIM information available online

• UL1480 and UL2043 certified

The accurate frequency response of the
AD-C.SUB is maintained even in 70 / 100 V
applications by use of a low-loss, low­saturation 100 W transformer with
selectable taps, including 4 Ω bypass, using
a rotary selector located under the snap-fit
magnetically attached powder coat steel
grille.

The AD-C.SUB includes built-in high-pass
filtered outputs for connecting up to four
AcousticDesign SUB/SAT satellite
loudspeakers. This feature greatly reduces
system setup, amplifier channel count, and
allows for ease of wiring.

The AD-C.SUB is available in QSC standard
black (RAL 9011) or white (RAL 9010) and
may be painted to match any decor.

For your system integration needs,
complete EASE, CF2, CAD, and BIM files
are available for download at QSC.com.

AD-C.SUB Details

Sound pressure, Level

1 00

9 0

8 0

7 0

6 0

Sound press ure, Level (dB)

5 0

4 0

2 0 5 0 2 00 50 0 2k 5k 2 0k

Frequency Response

Impedance

10 0 1 k 1 0k

Fre que nc y (Hz)

Dimensions

n 339.7
[13.38]

3 4X LOUDSPEAKER

MOUNTING SCREWS

CABLE CLAMP

263.0

[10.35]

n 16.1 CLAMP-WIRE ENTRY POINT
[0.63]

n 299.3
[11.78]

4.9

[0.19]

3

4X 51.0

[2.01]

246.6
[9.71]

Specifications

24

20

16

12

8

4

0

System Details AD-C.SUB

Imped ance, Ampl itude (ohm )

LF transducer 6.5" (165 mm) dual voice-coil weather treated paper

cone woofer

HF transducer N/A

Effective frequency range

Rated noise power / voltage

Sensitivity [dB] (rated @1 W, 1 m)

1, 2, 3

45 Hz – 150 Hz

5

3, 4, 7

100 W / 20 V (rms)

86

Coverage (-6 dB) (deg) 250

Directivity index [dB]

Directivity factor

9, 8

9, 8

1.8

1.5

Maximum SPL [dB] (continuous / program / peak) 6105 / 108 / 111

Recommended amplifier 100 W

Transformer taps / impedance Bypass: 4 Ω

100 W (70 V); NA (100 V) Tap: 50 Ω

50 W (70 V); 100 W (100 V) Tap: 100 Ω

25 W (70 V); 50 W (100 V) Tap: 200 Ω

12.5 W (70 V); 25 W (100 V) Tap: 400 Ω

Connectors Mono input: 4-pole Euroblock with thru output

Hi-pass mono output: 2x 4-pole Euroblock for 4x
satellites

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 -4 to 122° F (-20 to 50° C)

Cutout dimension Ø 12 in (Ø 305 mm)

Net weight 19.2 lb (8.7 kg)

Product dimensions (Ø x H) Ø 13.4 x 10.4 in (Ø 340 x 263 mm)

Shipping weight 11.9 lb / 26.2 kg

Shipping dimensions (D x W x H) 21 x 21 x 15 in (533 x 533 x 381 mm)

Included accessories C-ring and tile rails, rail screws, 3x Euroblock connector,

Safety agency UL1480, UL2043, NFPA90, NFPA70 suitable for use

cut-out template, grill

in air handling spaces. Transformer UL registered per
UL1876, ROHS, CE compliant. Baffle meets UL94-V0
and UL94-5VB flamibility rating; in accordance with
IEC60849 / EN60849 systems.

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

Footnotes:

1) -10 dB from rated sensitivity

2) Anechoic chamber, half-space, 4 V, 1 m

3) Reference axis

4) Caculated @ 1 W-1 m from Thiele-Small parameters

5) IEC, 2hrs, 4 ohm nominal, rated noise power [W], rated noise voltage [Vrms]

6) Calculated from rated noise power and sensitivity

7) Reference plane is the plane coincident with the loudspeaker baffle plane. Reference axis is the axis
perpendicular to the reference plane and passing through the center of the baffle. Vertical plane is the plane
intersecting the reference plane at a right angle, including the reference axis and the taps selector knob.
Horizontal plane is the plane intersecting the reference plane and the vertical plane at a right angle, including the
reference axis.

8) Mounted onto IEC baffle, 4 m

9) 50 Hz - 200 Hz

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

© 2019 QSC, LLC all rights reserved. QSC and the QSC logo are registered trademarks of QSC, LLC in the U.S. Patent and Trademark office and

other countries. All other trademarks are the property of their respective owners. Patents may apply or be pending.

AD-C.SUB Spec Sheet 01/10/2019

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