ACE 540 Manuals



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Key Features
s Reference-Quality Audio — for broadcast,
stage monitoring, multimedia presentations,
ACE 540/550/570
and numerous additional applications.
s Direct Radiator, 2-Way System — in a multi-
purpose compact enclosure.
s Advanced Composilite™ Carbon Fiber
Enclosure — for greater sonic accuracy and
superior weather resistance.
s 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). 
s 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.
s Color Options — over 100 custom color
options are available.
QSC-ACE 500 Series Composite Nearfield
Reference Monitors are two-way speakers
Specifications
540 WR
550 WR
570 i
designed for use in critical listening applications,
Configuration
Two way, infinite baffle
Two way, ported
Two way, ported
including broadcast, stage monitoring, multimedia
enclosure
enclosure
enclosure
presentations, and foreground or background
High Frequency Transducer
1" (25 mm) dome tweeter
1" (25 mm) dome tweeter
1" (25 mm) dome tweeter
music playback.
The ACE 500 product line consists of three
Low Frequency Transducer
5.25" (130 mm)
5.25" (130 mm)
7" (178 mm)
models: the ACE 540, ACE 550, and the ACE 570.
Crossover Configuration
Passive
Passive
Passive
The ACE 540 delivers excellent performance from
Frequency Response (Hz)
a two-way, infinite baffle enclosure. The ACE 550
± 3  dB
73 Hz–20 kHz
52 Hz–20 kHz
75 Hz–20 kHz
and ACE 570 are two-way, ported enclosures that
boast extended low frequency response. All three
Sensitivity (2.83V @ 1 meter)
models make use of a 1" dome tweeter for the HF
20 Hz–20 kHz
86 dB
86 dB
89 dB
transducer. The ACE 540 and ACE 550 use a 5.25"
Nominal Impedance
4 ohms
4 ohms
8 ohms
LF transducer while the ACE 570 uses a 7" LF
Power Handling
transducer. All models are housed in a trapezoidal-
Continuous Program Material
200W
200W
160W
shaped enclosure—making these speakers well
suited for numerous audio environments.
Nominal Coverage
120°
120°
120°
All 500 Series loudspeakers employ a passive
Video Shielding
Yes
Yes
No
crossover and have a nominal coverage pattern of
120°. Neutrik® NL4 Speak-On connectors, binding
posts, and mounting points are included. 
Enclosure
QSC-ACE enclosures incorporate Composilite™,
Cabinet Shape
Trapezoidal
Trapezoidal
Trapezoidal
a patented core composite technology that yields
Enclosure Materials
Composilite™
Composilite™
Composilite™
superior acoustic properties, lighter weight, and
Composite Core
Composite Core
Composite Core
outstanding weather resistance compared to
conventional enclosure materials. Multiple skins
Finish
Epoxy Resin
Epoxy Resin
Epoxy Resin
of carbon fiber are layered over a phenolic honeycomb
Weather Resistance
Yes
Yes
No
core to form a rigid, seamless enclosure. The
Grill
Black anodized
Black anodized
Black anodized
extreme stiffness of composite construction prevents
perforated aluminum
perforated aluminum
perforated aluminum
flexing of the enclosure walls, significantly
w/67% open area
w/67% open area
w/67% open area
reducing transmission loss due to wall vibration. The
result is reduced cabinet resonance, increased
Connectors
Neutrik NL4 Speakon,
Neutrik NL4 Speakon,
Neutrik NL4 Speakon,
low-frequency output, and greater sonic accuracy.
binding posts
binding posts
binding posts
A comprehensive line of mounting accessories
Suspension Hardware
500 Series Accessories
500 Series Accessories
500 Series Accessories
and optional color choices make the QSC-ACE
500 Series a versatile solution.
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)
Hear the Power of Technology.


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