Crossover Frequency, Watts, Minimum, Finish

Xi-2181 Bass System

Specifications

Frequency Response (measured in far field, with and without crossover and equalization, calculated to one meter on axis, swept sine wave, one watt into system - 2.00 V at 70 Hz, anechoic environment; see Figure 2):

37-200 Hz

Crossover Frequency:

125 Hz

Efficiency Mid Band: 5.3 %

Maximum Long-Term-Average Power- Handling Capacity (per ANSI/EIA RS-

426A 1980):

1,200 watts

Maximum Long-Term-Average Mid- Band Acoustic Output, LF/HF:

64 acoustic watts

Sensitivity (SPL at one meter, indicated input power, anechoic environment, average level),

1watt:

98.5dB

1,200 watts:

129.3 dB

Beamwidth (angle included by 6-dB- down points on polar responses, indicated one-third-octave bands of pink noise; see Figures 1 and 3),

Horizontal, 63-200 Hz: 240° (+120°, -60°)

Vertical, 63-200 Hz:

300° (+60°, -120°)

Directivity Factor, R (Q), 63-200 Hz Average (see Figure 4):

2.2 (+0.8, -0.4)

Directivity Index, Di, 63-200 Hz Average (see Figure 4):

3.4dB (+1.4 dB, -0.9 dB)

Distortion (115 dB SPL at one meter, shaped spectrum; see Figure 5),

Second Harmonic,

40 Hz:

1.8%

80 Hz:

0.7%

Third Harmonic,

40 Hz:

0.3%

80 Hz:

0.1%

Transducer Complement,

Two EVX-180B 18-in. woofers

Impedance (see Figure 6), Nominal:

Two 8-ohm loads

Minimum:

Two 6.0-ohm loads

Input Connections:

Two Neutrik NL8MPR Speakon® connectors paralleled

Recommended Amplifier Power, Rating: 800 watts @ 8 ohms

(91-volts rms short term)

Enclosure Construction,

Enclosure Shell:

18-mm, 13-ply birch plywood

Finish:

Black textured paint

Grille:

Powder-coated steel with foam Rigging:Heavy-duty L-track on top/

bottom which accepts New Haven NH32102-2 double-stud fittings

Dimensions,

Height:

914mm (36.00 in.)

Width (front):

584mm (23.00 in.)

Width (back):

354mm (13.93 in.)

Depth:

759mm (29.88 in.)

Angle:

18° wedge

Net Weight:

83.5kg (184 lb)

Shipping Weight:

91.8kg (202 lb)

	600 Cecil Street, Buchanan, MI	49107
	616/695-6831, 616/695-1304	Fax
SPEAKERS—X-Array TM	©Telex Communications, Inc., 1999 • Litho in U.S.A.		Part Number 535474—9913