T h e 5 0 0 S e r i e s

Key Features

Reference-Quality Audio — for broadcast, stage monitoring, multimedia presentations, and numerous additional applications.

Direct Radiator, 2-Way System — in a multi- purpose compact enclosure.

Advanced Composilite™ Carbon Fiber Enclosure — for greater sonic accuracy and superior weather resistance.

High Power Handling —“Industrial Strength” near-field components handle 160-200 watts of program material. With 86 dB sensitivity, 112 dB peak SPL is available (model 570: 89 dB sensitivity, 114 dB peak SPL).

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.

Color Options — over 100 custom color options are available.

QSC-ACE 500 Series Composite Nearfield Reference Monitors are two-way speakers designed for use in critical listening applications, including broadcast, stage monitoring, multimedia presentations, and foreground or background music playback.

The ACE 500 product line consists of three models: the ACE 540, ACE 550, and the ACE 570. The ACE 540 delivers excellent performance from a two-way, infinite baffle enclosure. The ACE 550 and ACE 570 are two-way, ported enclosures that boast extended low frequency response. All three models make use of a 1" dome tweeter for the HF transducer. The ACE 540 and ACE 550 use a 5.25" LF transducer while the ACE 570 uses a 7" LF transducer. All models are housed in a trapezoidal- shaped enclosure—making these speakers well suited for numerous audio environments.

All 500 Series loudspeakers employ a passive crossover and have a nominal coverage pattern of 120°. Neutrik® NL4 Speak-On connectors, binding posts, and mounting points are included.

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. A comprehensive line of mounting accessories and optional color choices make the QSC-ACE 500 Series a versatile solution.

Hear the Power of Technology.

P r e l i m i n a r y S p e c i f i c a t i o n s

ACE 540/550/570

 

Specifications

 

540 WR

 

550 WR

 

570 i

 

Configuration

 

Two way, infinite baffle

 

Two way, ported

 

Two way, ported

 

 

 

 

enclosure

 

enclosure

 

enclosure

 

 

 

 

 

 

 

 

 

 

 

High Frequency Transducer

 

1" (25 mm) dome tweeter

 

1" (25 mm) dome tweeter

 

1" (25 mm) dome tweeter

 

 

 

 

 

 

 

 

 

 

 

Low Frequency Transducer

 

5.25" (130 mm)

 

5.25" (130 mm)

 

7" (178 mm)

 

 

 

 

 

 

 

 

 

 

 

Crossover Configuration

 

Passive

 

Passive

 

Passive

 

 

 

 

 

 

 

 

 

 

 

Frequency Response (Hz)

 

 

 

 

 

 

 

 

±3 dB

 

73 Hz–20 kHz

 

52 Hz–20 kHz

 

75 Hz–20 kHz

 

 

 

 

 

 

 

 

 

 

 

Sensitivity (2.83V @ 1 meter)

 

 

 

 

 

 

 

 

20 Hz–20 kHz

 

86 dB

 

86 dB

 

89 dB

 

 

 

 

 

 

 

 

 

 

 

Nominal Impedance

 

4 ohms

 

4 ohms

 

8 ohms

 

 

 

 

 

 

 

 

 

 

 

Power Handling

 

 

 

 

 

 

 

 

Continuous Program Material

 

200W

 

200W

 

160W

 

 

 

 

 

 

 

 

 

 

 

Nominal Coverage

120°

120°

120°

 

 

 

 

 

 

 

 

 

 

 

 

Video Shielding

 

Yes

 

Yes

 

No

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Enclosure

 

 

 

 

 

 

 

 

Cabinet Shape

 

 

 

 

 

 

 

 

 

Trapezoidal

 

Trapezoidal

 

Trapezoidal

 

 

 

 

 

 

 

 

 

 

 

Enclosure Materials

 

Composilite™

 

Composilite™

 

Composilite™

 

 

 

 

Composite Core

 

Composite Core

 

Composite Core

 

 

 

 

 

 

 

 

 

 

 

Finish

 

Epoxy Resin

 

Epoxy Resin

 

Epoxy Resin

 

 

 

 

 

 

 

 

 

 

 

Weather Resistance

 

Yes

 

Yes

 

No

 

 

 

 

 

 

 

 

 

 

 

Grill

 

Black anodized

 

Black anodized

 

Black anodized

 

 

 

 

perforated aluminum

 

perforated aluminum

 

perforated aluminum

 

 

 

 

w/67% open area

 

w/67% open area

 

w/67% open area

 

 

 

 

 

 

 

 

 

 

 

Connectors

 

Neutrik NL4 Speakon,

 

Neutrik NL4 Speakon,

 

Neutrik NL4 Speakon,

 

 

 

 

binding posts

 

binding posts

 

binding posts

 

 

 

 

 

 

 

 

 

 

 

Suspension Hardware

 

500 Series Accessories

 

500 Series Accessories

 

500 Series Accessories

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Dimensions and Weight

 

 

 

 

 

 

 

 

Height

 

 

 

 

 

 

 

 

 

14.38" (36.5 cm)

 

14.38" (36.5 cm)

 

14.38" (36.5 cm)

 

 

 

 

 

 

 

 

 

 

 

Width (Front)

 

8.75" (22.2 cm)

 

8.75" (22.2 cm)

 

8.75" (22.2 cm)

 

 

 

 

 

 

 

 

 

 

 

Depth

 

9" (22.9 cm)

 

9" (22.9 cm)

 

9" (22.9 cm)

 

 

 

 

 

 

 

 

 

 

 

Trapezoid Angle

 

45 deg. Prism

 

45 deg. Prism

 

45 deg. Prism

 

 

 

 

 

 

 

 

 

 

 

Net Weight

 

8 lb. (3.6 kg)

 

8 lb. (3.6 kg)

 

10 lb.(4.5 kg)

 

 

 

 

 

 

 

 

 

 

 

Shipping Weight

 

11 lb. (4.9 kg)

 

11 lb. (4.9 kg)

 

13 lb. (5.85 kg)

 

 

 

 

 

 

 

 

 

 

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QSC Audio ACE 550 specifications ACE 540/550/570, E 5 0 0 S e r i e s, E l i m i n a r y Specification s, Key Features