Electro Voice Speaker S 40 User Manual

S-40  
Compact Monitor  
radiating soft dome tweeter. The tweeter is  
ferro-fluid cooled and uses flexible tinsel  
lead wires to prevent thermal or mechanical  
failure. These features in addition to the large  
magnetic system make this the most rugged  
tweeter ever used in a system this size.  
wide and smooth frequency response shown  
in Figure 1. This response was measured at  
1 meter, using a 2 Volt (1 watt) input in an  
anechoic chamber. The response is 1/3-oc-  
tave averaged and no external equalization  
was used.  
Description  
The Electro-Voice S-40 is an extremely com-  
pact high- performance monitor loudspeaker  
system. It is ideally suited for indoor or out-  
door applications requiring high-quality  
sound reproduction. As a near-field moni-  
tor in control rooms or broadcast studios, or  
as a foreground or background loudspeaker  
in restaurants and clubs, the S-40 is the  
choice of professional users. Its high power  
handling also makes the S-40 an ideal loud-  
speaker for nearfield monitoring in live per-  
formance situations. Threaded inserts in the  
cabinet in combination with the optional  
mounting hardware provide a flexible  
mounting system for virtually any applica-  
tion.  
These high quality components will provide  
years of listening pleasure when driven at  
reasonable levels. However, sometimes  
loudspeakers are accidently over-driven,  
causing the drive units to fail. To prevent  
against this, EV engineers have incorporated  
independent woofer and tweeter protection  
circuits in the S-40. These circuits will au-  
tomatically reduce the power being delivered  
to the drivers if their threshold is exceeded,  
greatly reducing the possibility of driver fail-  
ure.  
Directivity  
The polar response of the S-40 speaker sys-  
tem at selected 1/3-octave bandwidths is  
shown in Figure 4. These polar responses  
were measured in an anechoic environment  
at 10 feet using 1/3-octave pink noise inputs.  
The frequencies selected are fully represen-  
tative of the polar response of the system.  
Beamwidth of the system utilizing the com-  
plete 1/3-octave polar data is shown in Fig-  
ure 2. Rq (Q) and directivity index (Di) are  
plotted in Figure 3.  
The low-frequency section is a 5-1/4" di-  
rect-radiating woofer with a polypropylene  
cone installed in an optimally vented high-  
impact polystyrene enclosure. This combi-  
nation produces an exceptionally extended  
bass response with relatively high efficiency  
for an extremely small enclosure. The use  
of plastic materials for the enclosure and cone  
allow the loudspeaker system to be used in  
high-humidity environments.  
Both drivers feature low-flux-leakage de-  
signs enabling the speaker to be used in close  
proximity to video monitors. For very criti-  
cal video monitoring applications, a mini-  
mum distance of four inches from the edge  
of the loudspeaker to the edge of the CRT is  
recommended.  
Power Handling Capacity  
To our knowledge, Electro-Voice was the  
first U.S. manufacturer to develop and pub-  
lish a power test closely related to real-life  
conditions. First, we use a random noise  
input signal because it contains many fre-  
quencies simultaneously, just like real voice  
or instrument program. Second, our signal  
contains more energy at extremely high and  
Frequency Response  
The combination of 5-1/4" woofer, 1-inch  
tweeter and optimized crossover result in the  
The high-frequency section is a 1-in. direct-  
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S-40 Compact Monitor  
proof of purchase of the product in the form  
of a bill of sale or receipted invoice.  
FIGURE–1 Axial Frequency Response  
100  
Incidental and  
Consequential Damages Excluded: Prod-  
uct repair or replacement and return to the  
customer are the only remedies provided to  
the customer. Electro-Voice shall not be li-  
able for any incidental or consequential dam-  
ages including, without limitation, injury to  
persons or property or loss of use. Some  
states do not allow the exclusion or limita-  
tion of incidental or consequential damages  
so the above limitation or exclusion may not  
apply to you. Other Rights: This warranty  
gives you specific legal rights, and you may  
also have other rights which vary from state  
to state. Electro-Voice Speakers and  
Speaker Systems are guaranteed against  
malfunction due to defects in materials or  
workmanship for a period of five (5) years  
from the date of original purchase. The Lim-  
ited Warranty does not apply to burned voice  
coils or malfunctions such as cone and/or coil  
damage resulting from improperly designed  
enclosures. Electro-Voice active electronics  
associated with the speaker systems are guar-  
anteed for three (3) years from the date of  
original purchase. Additional details are in-  
cluded in the Uniform Limited Warranty  
statement.  
FIGURE–2 Beamwidth vs. Frequency  
360  
300  
200  
100  
80  
For warranty repair or service informa-  
tion, contact the service repair department  
at: 800/685-2606 or 501/354-0111.  
60  
40  
30  
For technical assistance, contact Technical  
Support at 866/78AUDIO, M-F, 8:00 a.m.  
to 5:00 p.m. Central Standard Time.  
20  
Specifications subject to change without  
notice.  
3
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S-40 Compact Monitor  
FIGURE–3 Directivity vs Frequency  
Whole Space (anechoic)  
FIGURE–4 Polar Response  
44  
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S-40 Compact Monitor  
Directivity Factor Rq (Q),1,500-20,000 Hz  
Median:  
Enclosure Materials:  
High impact polystyrene structural foam  
Colors:  
Specifications  
Frequency Response, 1 Meter on Axis,  
Swept 1/3-Octave, Anechoic  
Environment … 3 dB:  
9.5 (+3.8 dB, -3.6 dB)  
Directivity Index Di, 2,000-20,000 Hz Me-  
dian:  
Black or white  
Optional Accessories:  
S-40MB Black, mounting bracket  
S-40MB White, mounting bracket  
Dimensions:  
85-20,000 Hz  
9.8 dB (+3.8 dB, -3.6 dB)  
Transducer Complement,  
High-Frequency:  
2.5cm (1 inch) Tweeter  
Low-Frequency:  
13cm (5•1/4 inch) Woofer  
Box Tuning Frequency:  
75 Hz  
Usable Low-Frequency Limit  
(10-dB-down point):  
65 Hz  
24.9 cm (9.8 in.) high,  
17.8 cm (7.0 in.) wide,  
15.0 cm (5.9 in.) deep  
Net Weight (Each):  
2.6 kg (5.7 lb)  
Long-Term Average Power Handling  
Capacity per EIA Standard RS-426A  
(see Power Handling Capacity section):  
120 watts  
Sound Pressure Level at 1 Meter, 1 Watt  
Crossover Frequency:  
3,500 Hz  
Shipping Weight (Pair):  
5.7 kg (12.7 lb)  
Input, Anechoic Environment, Band-Lim-  
ited  
Impedance,  
Pink Noise Signal, 300 to 2,000 Hz:  
85 dB  
Nominal:  
4 ohms  
Dispersion Angle Included by 6-dB-Down  
Points on Polar Responses, Indicated One-  
Third-Octave Bands of Pink Noise,  
Horizontal and Vertical,  
1,500-10,000 Hz:  
Minimum:  
3.7 ohms  
100° … 25°  
55  
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S-40 Compact Monitor  
12000 Portland Ave. South, Burnsville, MN 55337  
952/884-4051 Phone, 952/884-0043 Fax  
SPEAKERS–Compact Monitor  
Part Number 531683 — Rev C  
©Telex Communications 1999 • Litho in U.S.A.  
6
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