QSC Audio Portable Speaker ACE 540 User Guide

T h e 5 0 0 S e r i e s  
Key Features  
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  
I Reference-Quality Audiofor broadcast,  
stage monitoring, multimedia presentations,  
and numerous additional applications.  
ACE 540/550/570  
I Direct Radiator, 2-Way Systemin a multi-  
purpose compact enclosure.  
I Advanced Composilite™ Carbon Fiber  
Enclosurefor greater sonic accuracy and  
superior weather resistance.  
I 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).  
I QSC DSP Downloadsfor QSC-powered  
systems using the DSP-3 programmable  
processor, a growing selection of custom  
tailored downloads offer virtually perfect  
“dialed-inperformance right out of the box.  
I Color Optionsover 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.  
Specifications  
Configuration  
540 WR  
550 WR  
570 i  
Two way, infinite baffle  
enclosure  
Two way, ported  
enclosure  
Two way, ported  
enclosure  
High Frequency Transducer  
Low Frequency Transducer  
Crossover Configuration  
1" (25 mm) dome tweeter  
5.25" (130 mm)  
Passive  
1" (25 mm) dome tweeter  
5.25" (130 mm)  
Passive  
1" (25 mm) dome tweeter  
7" (178 mm)  
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  
120°  
Yes  
200W  
120°  
Yes  
160W  
120°  
No  
Nominal Coverage  
Video Shielding  
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.  
Enclosure  
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.  
Cabinet Shape  
Enclosure Materials  
Trapezoidal  
Trapezoidal  
Trapezoidal  
Composilite™  
Composilite™  
Composilite™  
Composite Core  
Composite Core  
Composite Core  
Finish  
Epoxy Resin  
Yes  
Epoxy Resin  
Yes  
Epoxy Resin  
No  
Weather Resistance  
Grill  
Black anodized  
Black anodized  
Black anodized  
perforated aluminum  
w/67% open area  
perforated aluminum  
w/67% open area  
perforated aluminum  
w/67% open area  
Connectors  
Neutrik NL4 Speakon,  
binding posts  
Neutrik NL4 Speakon,  
binding posts  
Neutrik NL4 Speakon,  
binding posts  
Suspension Hardware  
500 Series Accessories  
500 Series Accessories  
500 Series Accessories  
Dimensions and Weight  
Height  
14.38" (36.5 cm)  
8.75" (22.2 cm)  
9" (22.9 cm)  
14.38" (36.5 cm)  
8.75" (22.2 cm)  
9" (22.9 cm)  
14.38" (36.5 cm)  
8.75" (22.2 cm)  
9" (22.9 cm)  
Width (Front)  
Depth  
Trapezoid Angle  
Net Weight  
45 deg. Prism  
8 lb. (3.6 kg)  
45 deg. Prism  
8 lb. (3.6 kg)  
45 deg. Prism  
10 lb.(4.5 kg)  
13 lb. (5.85 kg)  
Shipping Weight  
11 lb. (4.9 kg)  
11 lb. (4.9 kg)  
Hear the Power of Technology.  
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