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Description

The Electro-Voice SL12-2V is a 15°

 

slanted

baffle two-way, high-efficiency speaker

system. Its primary intended application

is for high-quality surround sound in me-

dium and large premium cinema installa-

tions. It has been designed for high-power

digital surround sound requirements us-

ing high-quality, professional-level com-

ponents such as a high-frequency 100° x

90° horn/driver and 12-inch woofer.  The

sleek black-vinyl enclosure with a black

cloth grille attached with four screws has

been to blend into most interior design

concepts. A third-order (18-db-per-oc-

tave) crossover at 1,600 Hz is used to com-

bine the two frequency sections and pro-

vide the system equalization while achiev-

ing the best directivity response both on

and off axis.

Frequency Response

The SL12-2V axial frequency response was

measured in Electro-Voice's large anechoic

chamber at a distance of 10 feet with a swept

sine-wave input , corrected to 1 watt 1 Meter

(see Figure 4). The two responses, ISO 2969

and "flat" are illustrated.

Directivity

The directional characteristics of the SL12-

2V wawe measured in Electro-Voice's large

anechoic chamber. The test signal was one-

third-octave pink noise at the frequencies

indicated. A full spherical measurement

system was used. All directional informa-

tion was measured at 20 feet. Figure 8  il-

lustrates the horizontal and vertical polar

responses. Figure 6 shows the horizontal

and vertical bandwidths. Beamwidth is the

angle at which the horizontal and vertical

polar responses have decrease in level by

6dB when compared with the axial fre-

quency response.

Figure 7 illustrates the total directivity of

the SL12-2V. The directivity factor R

q

(Q) is

the relative value, at a point, of an ideal

spherical response. The directivity index,

D

i

 = 10log

10

R

q.

Power Handling

Electro-Voice components and systems are

manufactured to exacting standards, en-

suring they will hold up, not only through

______________________
1 THX

®

 is a registered trademark of Lucasfilm Ltd.

SL12-2V

High-Output, Two-Way
Slant Cinema Surround
Speaker System

•  High output--complements the

potential digital sound sources

•  Versatile suspension and safety

options

•   ISO 2969 treble roll-off
    (switchable)
•  15° Slanted profile for greater

directivity

•  12-inch woofer
•  100° x 90° horn and HF compression

driver

•  THX

®1

 Approved

the most rigorous of power tests, but also

through continued use in arduous, real-

life conditions. The EIA Loudspeaker

Power Rating Full Range (EIA RS-426-A

1980) uses a noise spectrum which mimics

typical music and test the thermal and me-

chanical capabilities of the components.

Electro-Voice will support relevant addi-

tional standards as and when they become

available. Extreme, in-house power test,

which push the performance boundaries

of the system, are also performed and

passed to ensure years of trouble-free

service.

Specifically, the SL12-2V passes EIA RS-

426-A 1980 with the following values.

R

SR

= (1.15 x R

E

  ohms) ,  R

E

 = 7.1 ohms

P

E(MAX)

 =200 watts

T

est voltage =  square root of PE

(MAX)

 x R

SR

   

                     = 40.4  volts  rms.

                      = 80.8  volts peak

The "peak power-handling capacity of a

woofer is determined by the peak test volt-

age amount. For the SL12-2V, a 80.8-volt

peak test voltage translates into an 800-

watt short-term-peak power-handling ca-

pacity. This is the equivalent of four times

the "average" power-handling capacity,

Содержание SL12-2V

Страница 1: ...d with the axial fre quency response Figure 7 illustrates the total directivity of the SL12 2V The directivity factor Rq Q is the relative value at a point of an ideal spherical response The directivity index Di 10log10 Rq Power Handling Electro Voice components and systems are manufactured to exacting standards en suring they will hold up not only through ______________________ 1 THX is a registe...

Страница 2: ...all be Electro Voice SL12 2V Uniform Limited Warranty Statement Electro Voice products are guaranteed against malfunction due to defects in ma terials or workmanship for a specified pe riod as noted in the individual product line statement s below or in the individual product data sheet or owner s manual be ginning with the date of original purchase If such malfunction occurs during the specified ...

Страница 3: ...SL12 2VHigh Output T wo W aySlantSurroundSpeakerSystem SL12 2V High Output Two Way Slant Cinema Surround Speaker System 3 Figure 3 Impedance Figure 2 Sl12 2V System Dimensions and ISO Selection ...

Страница 4: ...t Cinema Surround Speaker System 4 Figure 4 Axial Frequency Response anechoic environment 1 watt at 1 meter Figure 5 Harmonic Distortion 0 1 Rated Power Input 10 watts flat response Figure 6 Bandwidth vs Frequency anechoic environment Figure 7 Directivity vs Frequency anechoic environment ...

Страница 5: ...L12 2VHigh Output T wo W aySlantSurroundSpeakerSystem SL12 2V High Output Two Way Slant Cinema Surround Speaker System 5 Figure 8 One Third Octave Polar Response anechoic environment Vertical Horizontal ...

Страница 6: ...SL12 2VHigh Output T wo W aySlantSurroundSpeakerSystem SL12 2V High Output Two Way Slant Cinema Surround Speaker System 6 Figure 9 Offaxis Response from 0O to 50O anechoic environment ...

Страница 7: ...SecondHarmonic 100 Hz 35dB 1 8 1 000 Hz 42dB 0 8 10 000 Hz 24dB 6 3 ThirdHarmonic 100 Hz 45dB 0 6 1 000 Hz 42dB 0 8 10 000 Hz 43dB 0 7 NominalDirectivty Horizontal 100 Vertical 90 TransducerComplement LowFrequency 12 inch woofer High Frequency DH2010A and a 100 x 90 Horn Crossover Frequency See Figure 9 1 600 Hz 12dB per octave slope Impedance See Figure 3 Nominal 8 ohms DC Resistance 6 9 7 1 ohms...

Страница 8: ...rroundSpeakerSystem SL12 2V High Output Two Way Slant Cinema Surround Speaker System 8 Speakers Cinema Part Number 535563 9940 600 Cecil Street Buchanan MI 49107 616 695 6831 616 695 1304 Fax Telex Communications Inc 1999 Litho in U S A ...

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