ACE-550
The 500 Series Preliminary Specifications
ACE 540/550/570
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 trapezoidalshaped 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.
Specifications
Configuration
High Frequency Transducer
Low Frequency Transducer
Crossover Configuration
Frequency Response (Hz)
±3 dB
Sensitivity (2.83V @ 1 meter)
20 Hz–20 kHz
Nominal Impedance
Power Handling
Continuous Program Material
Nominal Coverage
Video Shielding
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
540 WR
Two way, infinite baffle
enclosure
1" (25 mm) dome tweeter
5.25" (130 mm)
Passive
73 Hz–20 kHz
86 dB
4 ohms
200W
120°
Ye s
Trapezoidal
Composilite™
Composite Core
Epoxy Resin
Ye s
Black anodized
perforated aluminum
w/67% open area
Neutrik NL4 Speakon,
binding posts
500 Series Accessories
14.38" (36.5 cm)
8.75" (22.2 cm)
9" (22.9 cm)
45 deg. Prism
8 lb. (3.6 kg)
11 lb. (4.9 kg)
550 WR
Two way, ported
enclosure
1" (25 mm) dome tweeter
5.25" (130 mm)
Passive
52 Hz–20 kHz
86 dB
4 ohms
200W
120°
Ye s
Trapezoidal
Composilite™
Composite Core
Epoxy Resin
Ye s
Black anodized
perforated aluminum
w/67% open area
Neutrik NL4 Speakon,
binding posts
500 Series Accessories
14.38" (36.5 cm)
8.75" (22.2 cm)
9" (22.9 cm)
45 deg. Prism
8 lb. (3.6 kg)
11 lb. (4.9 kg)
570 i
Two way, ported
enclosure
1" (25 mm) dome tweeter
7" (178 mm)
Passive
75 Hz–20 kHz
89 dB
8 ohms
160W
120°
No
Trapezoidal
Composilite™
Composite Core
Epoxy Resin
No
Black anodized
perforated aluminum
w/67% open area
Neutrik NL4 Speakon,
binding posts
500 Series Accessories
14.38" (36.5 cm)
8.75" (22.2 cm)
9" (22.9 cm)
45 deg. Prism
10 lb.(4.5 kg)
13 lb. (5.85 kg)
Hear the Power of Technology.
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