QSC Audio 1250 AWR, ACE 1250, 1250 WR User Manual

Hear the Power of Technology.

Specifications

Configuration

High Frequency Transducer

Low Frequency Transducer

Crossover Configuration

Crossover Frequency

Frequency Response (Hz)

±3 dB

-10 dB

Sensitivity (2.83V @ 1 meter)

Full Range (20 Hz–20 kHz) Biamped LF Biamped HF

Nominal Impedance

Full Range Biamped LF Biamped HF

Power Handling (EIA RS-426A)

Full Range Biamped LF Biamped HF

Calculated Maximum Output (dB SPL @ 1m)

Nominal Coverage (-6 dB)

Enclosure

Cabinet Shape

Enclosure Materials

Finish

Weather Resistance

Grill

Connectors

Suspension Hardware

Dimensions and Weight

Height

Width (Front)

Depth

Trapezoid Angle

Net Weight

Shipping Weight

1250 WR

Two way, ported enclosure

1.5" exit Neodymium compression driver on conical waveguide

12" (309 mm)

Passive or Bi-amplified (switchable)

1100 Hz

60 Hz–18 kHz 40 Hz–22 kHz

96 dB – –

8 ohms – –

600W 600W 75W

130 dB

75°

Irregular Pentagon

Composilite™ Composite Core with Carbon Fiber

Epoxy Resin

Ye s

Wood frame w/grill cloth

4 x Neutrik NL4 Speakons

1200 Series Accessories, Aeroquip, or Forged Closed Loop Eyebolts

29.5" (74.9 cm)

19.5" (49.5 cm)

12.6" (32.0 cm)

45 deg. Prism

49 lb. (22.2 kg)

61 lb. (27.5 kg)

1250 AWR

Two way, ported enclosure

1.5" exit Neodymium compression driver on conical waveguide

12" (309 mm)

Bi-amplified

1100 Hz

60 Hz–18 kHz 40 Hz–22 kHz

– 96 dB 112 dB

– 8 ohms 8 ohms

– 600W 75W

130/137 dB

75°

Irregular Pentagon

Composilite™ Composite Core with Carbon Fiber

Epoxy Resin

Ye s

Wood frame w/grill cloth

4 x Neutrik NL4 Speakons

1200 Series Accessories, Aeroquip, or Forged Closed Loop Eyebolts

29.5" (74.9 cm)

19.5" (49.5 cm)

12.6" (32.0 cm)

45 deg. Prism

47 lb. (21.3 kg)

59 lb. (26.6 kg)

The 1200 Series Preliminary Specifications

ACE 1250

Key Features

■ Advanced Composilite™ Carbon Fiber

Enclosure

— reduces passive enclosure losses (resulting in greater sonic accuracy), offers reduced weight, and is highly weather resistant.

■ 12-inch, 2-Way System —in a lightweight, multi-

purpose enclosure; fully equipped with certified rigging hardware for improved safety margins plus reduced shipping and handling costs.

■ Spherical Waveguide —mated with 1.5" exit

neodymium compression driver, delivers true constant-directivity performance, 75° nominal coverage pattern, and reduced throat distortion.

■ Versatile Shape —works as a floor wedge,

side fill, or in small front-of-house clusters.

■ High Power Handling — a 4-inch LF voice coil

and 4-inch HF voice coil handle 600W continuous AES power. With 96 dB efficiency, peak SPL can reach 130 dB.

■ QSC DSP Downloads — for QSC-powered

systems using the DSP-3 programmable processor, a growing selection of custom tailored downloads offer virtually perfect “dialed-in” performance right out of the box.

The QSC-ACE 1250 Composite Loudspeaker is a full range speaker system that delivers exceptional sound quality and high SPL in a lightweight, allweather carbon fiber enclosure. It makes an excellent choice for front of house arrays, delay or downfill clusters, high-level dance systems, and low profile stage monitoring systems.

The two-way, ported enclosure comprises a

1.5" exit neodymium compression driver coupled with a high frequency spherical waveguide that has true constant directivity performance. This spherical waveguide minimizes throat loading and distortion issues commonly associated with conventional high frequency horns. A powerful 12" LF transducer handles 600 watts of continuous power and provides smooth response through the crossover point. With a 75° nominal coverage pattern, multiple units can be splayed together to meet expanded coverage and SPL requirements.

The QSC-ACE 1250 WR employs a passive crossover that can be bypassed for bi-amplified use. The QSC-ACE 1250 AWR is designed for biamplification only and requires an external crossover.

QSC-ACE enclosures incorporate Composilite™, a patented core composite technology that yields superior acoustic properties, lighter weight, and outstanding weather resistance compared to conventional enclosure materials. Multiple skins of carbon fiber are layered over a phenolic honeycomb core to form a rigid, seamless enclosure. The extreme stiffness of composite construction prevents flexing of the enclosure walls, significantly reducing transmission loss due to wall vibration. The result is reduced cabinet resonance, increased low-frequency output, and greater sonic accuracy. Furthermore, the enclosure’s light weight translates to safer rigging and reduced handling costs. Installation accessories and array kits are readily available.

1250 Frequency Response and Impedance / Enclosure Dimensions

Physical Dimensions

Front

Top

Side

All units in inches

Frequency

Response and

Impedance

(Passive Mode)

Horizontal

Frequency

Response

(O°, 30°, 60°)

Beamwidth vs

Frequency

Directivity

Index and Q

Hear the Power of Technology.

dBSPL

20 Hz 50 100 200 500 1K 2K 5K 10K 20K

Frequency (Hz)

105

100

dBSPL

50 Hz 100 200 500 1K 2K 5K 10K 20K

Frequency (Hz)

105

100

10.0

9.0

8.0

7.0

6.0

5.0

4.0

3.0

2.0

1.0

0.0

Horizontal Vertical

DI Q

1000

100

100 1000 10000 10000

100 1000 10000 100000

Beamwidth (degrees)

Frequency (Hz)

DI (dB), Q

QSC Audio Products, Inc.

1675 MacArthur Boulevard Costa Mesa, CA 92626 Toll-free: (800) 854-4079 Tel: (714) 957-7100 Fax: (714) 754-6174 www.qscaudio.com

For more information about QSC

professional loudspeakers, contact

your local QSC sales representative, or call us toll-free at: (800) 854-4079

Ohm

1200 Series Spec Sheet 10/02/01