Electro-Voice manual TL880D Very-Low-FrequencySpeaker System, Specification

TL880D Very-Low-Frequency Speaker System

TL880D Very-Low-Frequency Speaker System

Specification

Frequency Response, 1 Watt at 1 Meter on Axis, Swept One-Third-Octave Pink Noise, Anechoic Environment (see Figure 1):

23-1,800 Hz

Low-Frequency 3-dB-Down Point:

23 Hz

Usable Low-Frequency Limit (10-dB- down point),

Normal Tuning:

20 Hz

Half-Space Reference Efficiency:

6.0%

Power-Handling Capacity (see Power Handling section),

Long-Term Average per ANSI/EIA RS-426-A 1980:

1,200 watts

Continuous Program:

2,000 watts

Maximum Long-Term Average Mid- Band Acoustic Output:

72 watts

Sound Pressure Level at 1 Meter, 1 Watt (2.0 volts) Input, Anechoic Environ- ment, Band-Limited Pink-Noise Signal,

100-800 Hz:

98dB

50-125 Hz:

96dB

Dispersion Angle Included by 6-dB- Down Points on Polar Responses, Indicated One-Third-Octave Bands of Pink Noise (see Figure 3),

90-125 Hz, Horizontal and Vertical:

360°

125-500 Hz, Horizontal:

200° ± 80°

125-500 Hz, Vertical:

160° ± 80°

Directivity Factor Rθ (Q), Median over Indicated Range (see Figure 4),

50-125 Hz:

1.0

125-500 Hz:

5.2

Directivity Index Di (10 log Rθ),

50-125 Hz:

0.0dB

125-500 Hz:

7.2dB

Distortion, 0.1 Full Power Input (see

Figure 5),

Second Harmonic,

100Hz:

0.9%

1,000 Hz:

0.9%

Third Harmonic,

100Hz:

0.4%

1,000 Hz:

0.3%

Transducer Complement:

Two EVX-180A

Net Box Volume:

439 liters (15.5 ft3)

Box Tuning Frequency:

25 Hz

Step-Down Peak-Boost Frequency:

25 Hz

Impedance, Nominal/Minimum:

4.0/4.2 ohms

Input Connectors:

Side-mounted screw terminals (#10) on barrier strip

Enclosure Materials and Finish:

Black texture-painted poplar plywood

Dimensions,

Height:

1210 mm (47.5 in.)

Width:

762 mm (30.0 in.)

Depth:

605 mm (23.8 in.)

Net Weight:

72.6kg (160 lb)

Shipping Weight:

80.0kg (176 lb)

600 Cecil Street, Buchanan, MI 49107

SPEAKERS—Low-Frequency Systems 616/695-6831, 616/695-1304 Fax Part Number 534147—9703