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TL880D Very-Low-Frequency Speaker System

Bug right

Figure 1—TL880D Axial Frequency

Response (anechoic environment,

1 watt/1 meter)

product data sheet or owner’s manual; (d)

malfunction resulting from misuse or abuse

of the product; or (e) malfunction occurring

at any time after repairs have been made to

the product by anyone other than EVI Au-

dio Service or any of its authorized service

representatives. Obtaining Warranty Ser-

vice: To obtain warranty service, a customer

must deliver the product, prepaid, to EVI

Audio Service or any of its authorized ser-

vice representatives together with proof of

purchase of the product in the form of a bill

of sale or receipted invoice. A list of autho-

rized service representatives is available from

EVI Audio Service at 600 Cecil Street,

Buchanan, MI 49107 (800/234/6831 or FAX

616/695/4743).  Incidental and Conse-

quential Damages Excluded: Product re-

pair or replacement and return to the cus-

tomer are the only remedies provided to the

customer. Electro-Voice shall not be liable

for any incidental or consequential damages

including, without limitation, injury to per-

sons or property or loss of use. Some states

do not allow the exclusion or limitation of

incidental or consequential damages so the

above limitation or exclusion may not ap-

ply to you. Other Rights: This warranty

gives you specific legal rights, and you may

also have other rights which vary from state

to state.

Electro-Voice Speakers and Speaker Sys-

tems are guaranteed against malfunction

due to defects in materials or workmanship

for a period of five (5) years from the date

of original purchase. The Limited Warranty

does not apply to burned voice coils or mal-

functions such as cone and/or coil damage

resulting from improperly designed enclo-

sures. Electro-Voice active electronics as-

sociated with the speaker systems are guar-

anteed for three (3) years from the date of

original purchase. Additional details are in-

cluded in the Uniform Limited Warranty

statement.

Electro-Voice Electronics are guaranteed

against malfunction due to defects in mate-

rials or workmanship for a period of three

(3) years from the date of original purchase.

Additional details are included in the Uni-

form Limited Warranty statement.

For  warranty repair, service information, or

a listing of the repair facilities nearest you,

contact the service repair department at: 616/

695-6831 or 800/685-2606.

For technical assistance, contact Technical

Support at 800/234-6831 or 616/695-6831,

M-F, 8:00 a.m. to 5:00 p.m. Eastern Stan-

dard time.

Specifications subject to change without no-

tice.

Summary of Contents for TL880D

Page 1: ... feet with a swept sine wave input of 4 volts Figure 1 has been averaged and corrected for 1 watt 1 meter Directivity The directional characteristics of the TL880D were measured in Electro Voice s large anechoic chamber the test signal was one third octave filtered pink noise at the frequencies indicated A full spherical measurement system was used which is compatible with the AcoustaCADDTM com pu...

Page 2: ...nd the additional power capacity accounts for the remaining 3 dB Specifically mutual coupling occurs at fre quencies whose wavelengths are longer than one quarter the center to center distance between the cones The highest frequency at which mutual coupling occurs is calcu lated from the following equation 3 000 f DMAX where DMAX inches is the distance between the cones and f Hz is the highest fre...

Page 3: ...tation of incidental or consequential damages so the above limitation or exclusion may not ap ply to you Other Rights This warranty gives you specific legal rights and you may also have other rights which vary from state to state Electro Voice Speakers and Speaker Sys tems are guaranteed against malfunction due to defects in materials or workmanship for a period of five 5 years from the date of or...

Page 4: ...TL880D Very Low Frequency Speaker System TL880DVery Low FrequencySpeakerSystem Figure 2 TL880D One Third Octave Polar Responses anechoic environment HORIZONTAL VERTICAL ...

Page 5: ...uency Speaker System FIGURE 4 TL880D One Third Octave Directivity vs Frequency anechoic environment FIGURE 5 TL880D Harmonic Distortion 0 1 Rated Power Input 120 watts 10 Feet on Axis FIGURE 3 TL880D One Third Octave Beamwidth vs Frequency anechoic environment ...

Page 6: ...800 Hz 98 dB 50 125 Hz 96 dB 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 θ θ θ θ Q Median over Indicated Range see Figure 4 50 125 Hz 1 0 125 500 Hz 5 2 Directivity Index Di 10 log Rθ θ θ θ θ 50 125 Hz 0...

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