Transcript
They were two Australians who defined the parameters with their name, at the end of the 60´s and the start of the 70´s, on which nowadays the whole audio world rests. The names of the two pioneers were A.N. Thiele and R.H. Small.
DL and EVX component woofers and DH drivers are high-effciency designs, highly refined from years of developement and field experience. EV woofers employ extended-length voice coils for high-impact reproduction of dynamic low-frequency program. All woofers feature proprietary heat-transfer systems for unmatched power capacity and reliability. A Flux Demodulation Device (FDD™) encircles both voice coil and pole piece, providing an additional heat-transfer path and reducing distortion across the band. DL10X and DL12X are suitable for horn loading. EVX woofers have a high peak-to-peak excursion ability and straight, ribbed Kevlar® fiber composite cone which resists collapse. DL and EVX woofers are made of cast aluminium frames and push terminals.
For the very first time, it was possible to design loudspeaker boxes on paper. In former times endless attempts were necessary, which not only cost time and money but also made the engineers despair because the results were unsatisfactory. In 1972, EV was the first U.S. manufacturer to design and produce compact sound reinforcement systems in a shorter time because of these parameters. Electro-Voice succeeded in developing modern loudspeaker systems, which are still famous today, such as S-1503 and the S 100 not only because of it´s skilfulness as a speaker cabinet manufacturer but especially because of it´s expertise in producing loudspeaker components. The Thiele Small-Parameters which appear mostly are defined as follows: RE
DC resistance of voice coil (ohms)
fS
Free-air resonance (Hz)
VAS
Volume of having same acoustic compliance as loudspeaker suspension (liters/ft3)
MMD
Mechanical mass of moving assembly (g/oz.)
RMS
Mechanical resistance of suspension losses (mechanical ohms)
SD
Effective radiating area of cone and suspension (m2/inch3)
QMS
Q considering mechanical resistances only
QES
Q considering electrical resistances only
QTS
Q considering both mechanical and electrical resistances
n0
Half-space reference efficiency
BL factor
Magnetic flux density times voice-coil length (tesla-meters)
Xmax
Peak displacement of voice coil where 10% current distortion occurs
PE(max)
Power capacity (watts)
Vd
Volume (SD x Xmax) of extruded air at maximum excursion (important for dimensioning the minimum diameter of the venting)
On pages 39 - 42 you find a selection of EV´s finest high-performance components and horns. As a matter of course, detailed specification sheets are available on each woofer, driver and horn. Please take notice that specs of different producers are not always comparable. Specs of Electro Voice are known for credibility. For that reason, a lot of engineers, contractors and well known speaker manufactures place confidence in EV specifications, horns and components. By the way, in 1973 EV were the first to publish full sets of 1/3 octave polar response patterns for their horns.
Sectional drawing
Cut of a woofer to show component parts. In case of damage, EV woofers can be repaired with a replacement kit. It replaces the cone, voice coil/coil form, dust dome and the surround.
EV PRO SOUND • TELEX EVI AudioGmbH • Hirschberger Ring 45 • D-94315 Straubing • Tel: +49 (0) 9421/706 0 • Fax: +49 (0) 9421/706 265 • www.telex.de
Components
Woofers
EV PRO SOUND • TELEX EVI AudioGmbH • Hirschberger Ring 45 • D-94315 Straubing • Tel: +49 (0) 9421/706 0 • Fax: +49 (0) 9421/706 265 • www.telex.de
Thiele Small Parameter
DL10X
Components
Components
DL12X DL15X DL18X
EVX-155
EVX-180B
Frequency Response Long-Term Average Short-Term Peak Sensitivity 1 W/1 m Impedance (nominal)
DL10X
DL12X
DL15X
DL 18X
EVX-155
EVX-180B
100-5.000 Hz 300 watts 1.200 watts 100 dB (200-4.000) 8Ω
50-5.200 Hz 300 watts 1.200 watts 98 dB (100-800 Hz) 8Ω
45-3.000 Hz 400 watts 1.600 watts 98 dB (100-800 Hz) 8Ω
35-3.000 Hz 400 watts 1.600 watts 97 dB (100-800 Hz) 8Ω
40-2.000 Hz 600 watts 2.400watts 98 dB (100-800 Hz) 8Ω
37-1.500 Hz 600 watts 2.400 watts 96 dB (100-800 Hz) 8Ω
Drivers DH drivers are high-effciency designs, highly refined from years of developement and field experience. DH drivers have a extended frequency response to 20.000 Hz, are high efficiency and have outstanding reliability.
Frequency Response Mid-Band Sensitivity (1 W/1m)* Power Capacity, 24 Hours (bandwidth) Power Capacity, Two Hours (bandwidth) Throat Diameter Nominal Impedance
DH1A (-16)
DH2A
DH3
N/DYM ®1
N/DYM ®1/2MT
500-20.000 Hz 113dB 50 watts (500-20.000 Hz) 75 watts (1.000-10.000 Hz) 1.94 inch 8Ω (-16: 16Ω)
500-20.000 Hz 113dB 30 watts (800-20.000 Hz) 40 watts (800-8.000 Hz) 1.94 inch 8Ω
5.000-20.000 Hz 111dB 20 watts (5,000-20.000 Hz) 30 watts (5.000-20.000 Hz) 0.95 inch 8Ω
500-20.000 Hz 113dB 50 watts (500-20.000 Hz) 75 watts (1.000-10.000 Hz) 1.94 inch 8Ω
500-20.000 Hz 113dB 100 watts (500-20.000 Hz) 150 watts (1.000-10.000 Hz) 1.94 inch 8Ω (2x 16Ω)
...*Average from 500-5,000 Hz on HP6040 horn (DH3 average from 1,500-5,000 Hz on HPT64 horn).
For more information and the Thiele Small Parameters, detailed data sheets are available.
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39
Small format horns
HP 66
HP 64
HP 94
HPT 94
Coverage (nominal -6 dB) H° x V° Directivity Index Usable low-frequency limit Axial Sensitivity SPL 1W/1m (with driver) Horn throat diameter Recommended drivers (Details see page 39) Dimensions (H x W x D) Net Weight
Coverage (nominal -6 dB) H° x V° Directivity Index Usable low-frequency limit Axial Sensitivity SPL 1W/1m (with driver) Horn throat diameter Recommended drivers (Details see page 39) Dimensions (H x W x D) Net Weight
HT 94
HP 64
HP 66
HP 94
60° x 40° 12.6 dB (+0.9/-2.9 dB) 1.600 - 20.000 Hz 650 Hz 111 dB (DH2A) 2" DH1A / DH2A 279 x 222 x 220 mm 2.5 kg
60° x 60° 12.5 dB (+2.0/-3.0 dB) 1.600 - 20.000 Hz 650 Hz 111 dB (DH2A) 2" DH1A / DH2A 279 x 224 x 165 mm 2.2 kg
90° x 40° 10.1 dB (+1.9/-0.9 dB) 1.600 - 20.000 Hz 800 Hz 111 dB (DH2A) 2" DH1A / DH2A 222 x 279 x 220 mm 2.5 kg
HPT 64
HPT 94
HT 94
60° x 40° 12.0 dB (+1.2/-1.6 dB) 3.000 - 20.000 Hz 1.600 Hz 111 dB (DH3) 1" DH3 133 x 133 x 104 mm 0.4 kg
90° x 40° 10.6 dB (+1.6/-1.0 dB) 3.000 - 20.000 Hz 1.600 Hz 112 dB (DH3) 1" DH3 133 x 133 x 104 mm 0.4 kg
90° x 40° 11.0 dB (+1.1/-1.2 dB) 3.000 - 16.000 Hz 1.500 Hz 112 dB (DH2A) 2" DH2A 241 x 195 x 147 mm 0.5 kg
Note: Shown sketches are not in skale to the other units in the series!
EV PRO SOUND • TELEX EVI AudioGmbH • Hirschberger Ring 45 • D-94315 Straubing • Tel: +49 (0) 9421/706 0 • Fax: +49 (0) 9421/706 265 • www.telex.de
The medium and small HP and HPT component horns are made of polyester resin and glass-fiber laminate integrally molded to a die-cast metal throat section encapsulated in the fiberglass sidewalls. The HT horn is made of die-cast aluminium. For larger horns, used in a 2-way application with a separate sub woofer, see „Large HP horns“ page 14. For recomended drivers see spread sheet.
EV PRO SOUND • TELEX EVI AudioGmbH • Hirschberger Ring 45 • D-94315 Straubing • Tel: +49 (0) 9421/706 0 • Fax: +49 (0) 9421/706 265 • www.telex.de
Components
Medium format horns
The HP horn series is a refinement of the concept of “constant directivity”, which in 1973 EV was the first to introduce. For the first time, horn coverage angles were truly uniform over a wide frequency range. In the Hp series, unique beamwidth-control vanes within the horn throat form a waveguide that eliminates the norrowing of coverage angles –beaming– that occurs in other 2 inch throat horns due to EV´s patented Trans Planar™ Design which provides exceptionally smooth frequency responses. HP horns or variants thereof are used throughout the EV speaker system lines.
HPT 64
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Components
HP - high frequency horns HP420
HP640
HP940
HP1240
Coverage (nominal -6 dB) H° x V° Directivity Index Usable low-frequency limit Axial Sensitivity SPL 1W/1m (with driver) Horn throat diameter Recommended drivers (Details see page 39) Dimensions (H x W x D) Net Weight
HP 420
HP 640
HP 940
HP 1240
40° x 20° 16.8 dB (---/---) 1.250 - 20.000 Hz 400 Hz 111 dB (DH2A) 2" DH 1A 610 x 367 x 749 mm 5.9 kg
60° x 40° 13.1 dB (+1.9/-0.5 dB) 1.250 - 20.000 Hz 400 Hz 112 dB (DH1A) 2" DH1A 711 x 330 x 437 mm 4.3 kg
90° x 40° 10.7 dB (+1.2/-1.3 dB) 1.250 - 16.000 Hz 400 Hz 114 dB (DH1A) 2" DH1A 533 x 330 x 284 mm 3.2 kg
120° x 40° 9.24 dB (+1.2/-0.9 dB) 1.250 - 20.000 Hz 400 Hz 108 dB (DH1A) 2" DH1A 533 x 330 x 264 mm 3.2 kg
Note: Shown sketches are not in skale to the other units in the series!
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EV´s coaxial speaker systems can be used as components in “boxes” or as high-quality built-in ceiling speakers. All coaxial speakers except PRO-8A(T) are Duplex® engines which means EV coaxial systems are a real 2-way point source that reduces the lack in time alignment of normal coaxial speakers to a minimum and achieves excellent coverage and directivity control, especially in near-field or ceiling applications. All 2-way speakers are equipped with an integrated passive crossover. For more information about Duplex® see page 71.
920-8B • • • •
2-Way Duplex® Full-range speaker Wide dispersion with radial coverage pattern 1.5” high-power dome tweeter Push-on type connectors
925-6 B • • • • • • •
2-Way Duplex® Full-range speaker High acoustical output VI-CD horn for square coverage pattern of 90° by 90° 1“ high-power titanium transducer PRO™ driver protection circuit Dual spade terminals Available as hanging ceiling speaker (see page 32)
950-8B • • • • • • •
2-Way Duplex® Full-range speaker High acoustical output VI-CD horn for square coverage pattern of 90° by 90° 1” high-power titanium transducer PRO™ driver protection circuit Dual spade terminals Available as hanging ceiling speaker (see page 32)
PRO 8 A PRO 8 AT30 • • • •
• Frequency Range Long-Term Power Handling Short-Term Power Handling (Peak) Axial Sensitivity SPL 1W/1m (half-space/Ceiling) Max. SPL / 1m (calc.); half space Transformer taps Coverage (nominal -6 dB) H° x V° Directivity Index (of the VI-CD horns) Transducers Crossover Frequencies Nominal Impedance (Low Z version) Minimum Impedance (Low Z version) Dimension (Diameter x Depth) Net Weight incl. mounting bracket
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(high Z)
2-Way Full-range speaker Wide dispersion with radial coverage pattern 1.5” piezoelectric transducer, coaxial mounted Bunch tinned wires for soldering
409-8E 409-8T • • • • •
Accessories for PRO 8 A and 409/8 types:
(low Z)
Built-in enclosure: 5184 E 5184 N
(low Z)
(42 litres) (17 litres)
(high Z)
2-Way Duplex Full-range speaker Wide dispersion with radial coverage pattern 2.5” cone tweeter Tweeter protection circuit High-quality transformer (T-version) with a insertion loss of only 0.5 dB and a frequency response of 50 – 15.000 Hz (+/- 1 dB) Bunch tinned wires for soldering ®
Rounded steel front grill: 5281-W
(White, Diameter 321 mm)
920-8B
925-8B
950-8B
PRO 8 A (T30)
409-8 E(T)
70 - 15.000 Hz 125 W 500 W 101 dB
60 - 20.000 Hz 250 W 1.000 W 100 dB
60 - 20.000 Hz 300 W 1.200 W 102 dB
82 - 16.000 Hz 30 W (T-version: 30 W) 120 W (T-version: 30 W) 99 dB
85 - 18.000 Hz 32 W (T-version: 8 W) 128 W (T-version: 8 W) 97 dB (T-version: 97 dB)
128 dB --approx. 140° (radial)
130 dB --90° x 90° (VI Horn) 9.6 dB (+2.7/-3.3 dB) 500 - 20.000 Hz 12"/1" 1.500 Hz 8Ω 7.0 Ω 311 x 243 mm 9.5 kg
133 dB --90° x 90° (VI Horn) 10.2 dB (+2.3/-3.9 dB) 500 - 20.000 Hz 15"/1" 1.500 Hz 8Ω 7.0 Ω 381 x 254 mm 10.7 kg
120 dB (T-version: 114 dB) 30/15/7.5/3.75 W approx. 110° (radial)
118 dB (T-version: 106 dB) 8/4/2/1 W approx. 180° (radial)
--12"/1.5" --8Ω 7.0 Ω 205 x 80 mm 1.2 kg
--8"/2.5" 2.500 Hz 8Ω 6.0 Ω 207 x 83 mm (8T: 114 mm) 1.3 kg (T-version: 1.8 kg)
--12"/1.5" 1.500 Hz 8Ω 5.1 Ω 312 x 127 mm 7.4 kg
EV PRO SOUND • TELEX EVI AudioGmbH • Hirschberger Ring 45 • D-94315 Straubing • Tel: +49 (0) 9421/706 0 • Fax: +49 (0) 9421/706 265 • www.telex.de
Components
Coaxial-Speakers
