Electro-Voice SX80T Low-Frequency 3-dB-Down Point, Usable Low-Frequency Limit DB-down point

Sx80T Two-Way Speaker System With Transformer

Sx80T Two-Way Speaker System With Transformer

Specifications

Typical Axial Frequency Response, Swept Sine Wave, 4 volts at 3.05 meters (10 feet), (half-space, normal- ized for 1 watt at 1 meter; see Figure 1):

65-20,000 Hz

Low-Frequency 3-dB-Down Point:

65 Hz

Usable Low-Frequency Limit

(10-dB-down point):

51 Hz

Half Space Reference Efficiency:

1.2 %

Long-Term Average Power-Handling Capacity per EIA Standard RS-426-A 1980 (see Power-Handling Capacity section):

2-60 watts, selectable in 3 dB steps (transformer-limited)

Maximum Woofer Acoustic Output:

2.1 watts

Sensitivity (SPL at 1 watt, 1 meter input, half-space, swept sine wave):

92 dB

Nominal Coverage Angle, Horizontal: 90° Vertical: 65°

Dispersion Angle Included by

6-dB-Down Points on Polar Re- sponses, Indicated One-Third-Octave Bands of Pink Noise (see Figure 3),

2,000-20,000 Hz, Horizontal:

90° (+34°, -27°)

2,000-20,000 Hz, Vertical:

65° (+31°, -4°)

Directivity Factor RΘ(Q), 800- to

16,000-Hz Median (see Figure 4):

8.3 (+5.7, -4.9)

Directivity Index Di, 800- to 16,000-Hz Median (see Figure 4):

9.2dB (+2.3 dB, -3.9 dB)

Distortion, 0.1 Full Power Input, (see Figure 5)

Second Harmonic,

100 Hz:

-21 dB, 9.0%

1,000 Hz:

-55 dB, 0.2%

10,000 Hz: -25 dB, 5.6%

Third Harmonic,

100 Hz:

-26 dB, 4.9%

1,000 Hz:

-41 dB, 0.9%

10,000 Hz: -47 dB, 0.5%

Transducer Complement, High Frequency:

DH2005 driver

Low-Frequency: 203-mm(8-in.) woofer

Box Tuning Frequency: 70 Hz

Crossover Frequency: 2,200 Hz

Crossover Slope, 12 dB per octave

Impedance:

Power	Impedance
Tap	100-volt	70-volt
60 W	167 Ω	83 Ω
30 W	333 Ω	167 Ω
15 W	667 Ω	333 Ω
7.5 W	1,350 Ω	667 Ω
3.8 W	2,700 Ω	1,350 Ω
1.9 W	5,400 Ω	2,700 Ω

Input Connections,

Sx80T:

Barrier Strip with Cover

Driver Protection, High Frequency:

Solid-state self-resetting circuit (PROJ circuit) drops output 6 dB; blocking capacitor with 800-Hz corner fre quency and 6-dB-per-octave slope

Materials,

Enclosure:

Injection-molded high-impact polystyrene, black or white

Grille:

Perforated metal grille matches enclosure color

Dimensions (see Figure 6)

Height:

400 mm (15.75 in.)

Width:

292 mm (11.49 in.)

Depth:

240 mm (9.45 in.)

Net Weight:

9.3kg (20.5 lb)

Shipping Weight:

11.1kg (24.5 lb)

Optional Accessories:

Sx80MB installation kit, black or white

Attachment Points:

Seven M6 and four M5 metric inserts (see Figures 6, 7, and Suspending Sx80T Enclosures section)

12000 Portland Avenue South, Burnsville MN 55337

952/884-4051, 952/884-0043 Fax

SPEAKER - Two-Way w/Transformer ©Telex Communications, Inc., 1999 • Litho in U.S.A. Part Number 535143 — Rev B

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