Electro-Voice TL606DW User's Manual
Contents
1. R H Small which makes possible a combination of high efficiency low distortion and extended low frequency performance in an enclosure of moderate size The TL606DW employs dual DL15W very low frequency reproducers in a 9 cubic foot 255 liter enclosure The DL15W s high linear cone excursion ability X a 0 22 inches zero to peak and 400 watt long term average power capacity contribute substantially to the TL606DW s high acoustic output ability see Power Handling Capacity section APPLICATIONS The TL606DW is ideally configured for a wide variety of high output low frequency reinforce FIGURE 1 FIGURE 2 FIGURE 3 FIGURE 4 FIGURE 5 FIGURE 6 FIGURE 7 Axial Frequency Response 4 volts 10 feet TL606DW One Third Octave Polar Responses anechoic environment TL606DW Beamwidth vs Frequency Whole Space anechoic TL606DW Directivity vs Frequency Whole Space anechoic TL606DW Harmonic Distortion 0 01 Rated Power Input 8 watts 10 Feet on Axis TL606DW Harmonic Distortion 0 1 Rated Power Input 80 watts 10 Feet on Axis Vertical and Horizontal Mounting Methods for the TL606DW Using the HS6 and HS7 Suspension Kits ment applications in permanently installed sound systems Typical venues include cinemas auditoriums theaters performing arts centers night clubs and concert halls The TL606DW is designed to serve as the primary low frequency section in extended res2. a desired high acoustic impact when the speakers are for example placed near the periphery of a dance floor In other installations such as a theater or audito rium the audible location of a subwoofer oper ating at a sufficiently low crossover frequency below about 125 Hz will not be particularly evident The other system elements operating above the subwoofer range can be positioned for the desired locational cues and uniform audience coverage Floor location provides the acoustic half space environment associated with the 5 8 system efficiency noted in the Specifications section Location at a floor wall junction acoustic quar ter space doubles efficiency a 3 dB increase in sound pressure level and tends to promote the full excitation of more room modes or standing waves important in achieving maxi mum overall bass output in the room Corner placement acoustic eighth space doubles efficiency again and guarantees excitation of all room modes Such placement for maxi mum efficiency and room mode excitation is not necessary and may not be desirable or possible for a variety of reasons including aesthetics and building design The TL606DW can also be successfully oper ated away from any nearby acoustic bound aries particularly when multiple systems are used for increased output ability see Use in Multiples section SUSPENDING TL606DW ENCLOSURES The TL606DW is designed for typical cinema stage behind the scree
3. dB down beamwidth versus frequency Figure 4 shows the directiv ity factor and directivity index versus frequency DISTORTION Following AES Audio Engineering Society recommended practice plots of second and third order harmonic distortion for 0 1 rated input power are shown in Figure 6 Figure 5 shows distortion at 0 01 rated input power POWER HANDLING CAPACITY To our knowledge Electro Voice was the first U S manufacturer to develop and publish a power test closely related to real life condi tions First we use a random noise input signal because it contains many frequencies simulta neously just like real voice or instrument pro gram Second our signal contains more en ergy at extremely high and low frequencies than typical actual program adding an extra measure of reliability Third the test signal includes not only the overall long term aver age or continuous level which our ears interpret as loudness but also short duration peaks which are many times higher than the average just like actual program The long term average level stresses the speaker ther mally heat The instantaneous peaks test mechanical reliability cone and diaphragm excursion Note that the sine wave test sig nals sometimes used have a much less de manding peak value relative to their average level In actual use long term average levels exist from several seconds on up but we apply the long term average for several hou
4. Elecio Voice SPECIFICATIONS Frequency Response 10 Feet on Axis Swept One Third Octave Pink Noise Half Space Anechoic Environment see Figure 1 40 3 500 Hz Low Frequency 3 dB Down Point Normal 40 Hz Usable Low Frequency Limit 10 dB down point Normal 30 Hz Half Space Reference Efficiency 5 8 Long Term Average Power Handling Capacity per EIA Standard RS 426A see Power Handling Capacity section 800 watts Maximum Long Term Average Mid Baud Acoustic Output 11 6 watts Sound Pressure Level at 1 Meter 1 Watt Input Anechoic Environment Band Limited Pink Noise Signal 100 800 Hz 100 dB 40 125 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 40 125 Hz Horizontal and Vertical 360 400 800 Hz Horizontal 110 412 400 800 Hz Vertical 46 13 Directivity Factor R Q Median Over Indicated Range see Figure 4 40 125 Hz 1 0 400 800 Hz 5 7 Directivity Index D Median Over Indicated Range see Figure 4 40 125 Hz 0 0 dB 400 800 Hz 7 5 dB Distortion 0 1 Full Power Input see Figure 6 Second Harmonic 100 Hz 0 45 500 Hz 0 28 Third Harmonic 100 Hz 0 14 500 Hz 0 89 Distortion 0 01 Full Power Input see Figure 5 Second Harmonic 100 Hz 0 16 500 Hz 0 1 Third Harmonic 100 Hz 0 16 500 Hz 0 5 Transducer Complement Two DL15W s Box Tuning Frequenc
5. e DL15W very low frequency reproducer is ruggedly designed and has a high maximum excursion before damage 0 5 inch However high output subwoofer systems such as the TL606DW should be protected by a high pass filter with a 3 dB down corner frequency of about 0 8 the enclo sure tuning frequency Below the corner fre quency a roll off of 12 dB per octave is usually sufficient Without protection subpassband signals may bottom the DL15W s Damage will probably result especially after repeated occurrences Even if bottoming does not occur the subpass band signals waste amplifier power and modu late distort the frequencies which are within the TL606DW s operating range Much woofer distortion or muddy bass can be attributed to lack of subpassband protection The Electro Voice EX 24 XEQ 2 and XEQ 3 electronic crossover equalizers provide sub passband protection The 3 dB down points are 30 Hz EX 24 and XEQ 2 and 16 Hz or 32 Hz XEQ 3 Other high pass filters are available and one third octave equalizers can also be effective at providing the required protection USE IN MULTIPLES TL606DW s may be used in multiples to in crease acoustic output In the following discus sion it is assumed that all speaker cones are operating in unison in phase when a common signal is applied A 6 dB increase in maximum acoustic output results when two speakers are located side by side For operation at very
6. h Electro Voice TransPlanar horns DH series compression drivers and accessories to form passive 500 Hz crossover systems that may be easily and quickly assembled and installed A 500 Hz passive crossover the XEQ 504 directly replaces the TL606DW s input panel Mounting kits the HMK 1 and HMK 2 provide the necessary hardware and accessories to mount the HP940 DH1A and HP9040 DH1A horn driver combinations respectively to the TL606DW box Steel threaded inserts are pro vided on the top panel of the box to accommo EY ELECTRO VOICE date mounting kits for both horn combinations ARCHITECTS AND ENGINEERS SPECIFICATIONS The loudspeaker system shall consist of two 380 mm 15 in very low frequency reproduc ers installed in a vented enclosure The frame of the reproducer shall be manufactured of cast aluminum and its magnetic assembly shall utilize a ferrite magnet In addition an alumi num ring encircling both the voice coil and pole piece shall act to reduce flux modulation A second aluminum ring mounted to the top of the pole piece shall act as a control on drive inductance and provide a heat transfer path from the top of the voice coil The inner surface of the top plate shall be coated with PROTEF a Teflon based coating used for prevention of damage to the voice coil Performance specifications of a typical produc tion unit shall be as follows measured sensitiv ity SPL at 1 m on axis with 1 W in
7. low frequencies the woofer cones mutually couple acting as one speaker with cone area and power handling capacity twice that of a single speaker The doubling of cone area doubles efficiency providing a 3 dB increase in sound pressure level The second 3 dB comes from the doubling of power capacity Mutual coupling occurs when the frequency is such that the center to center distance be tween the two speaker cones is less than about one quarter wavelength For a given center to center distance the highest frequency at which mutual coupling will occur can be calculated from the following formula 3 000 D max where Da is the distance in inches and f is frequency in Hz When Da is greater than one quarter wavelength as would occur if two TL606DW s were widely spaced the level increase tends to be limited to the 3 dB power handling increase More than two TL606DW s can be used for increased output In general maximum acous tic power output ability increases as the square of the number of mutually coupled cones For example four cones would provide 4 or 16 times the power output of a single cone an increase of 12 dB 10 log 16 12 dB Note that the associated increased efficiency 2 9 X 4 12 approaches that of a fully horn loaded design but in a much smaller enclosure SYSTEM POSITIONING Subwoofer systems such as the TL606DW are often located on the floor This is both conve nient and can provide
8. n applications where low frequency systems are mounted on plat forms behind the screen and some distance above the stage floor The TL606DW is not designed to be self suspended and if sus pended must be supported and hung in a way which does not depand on the struc ture of the TL606DW itself for support The HS6 and HS7 kits allow the TL606DW to be hung safely in a variety of orientations The combination of the correct HS kits and TL606DW enclosure has been certified by an indepen dent structural engineer to be safe and secure Each HS kit consists of a steel tube two brackets two eyebolts and the necessary fas teners The installer must assemble the HS kit by first drilling two holes into the TL606DW enclosure in predefined positions and then screwing the brackets onto the steel tube which passes through the enclosure An eye bolt is inserted in the T nut in the rear panel of the enclosure to provide a pull up to aim the enclosure Full instructions and hole locations are included with each cabinet and HS kit A TL606DW requires a single HS6 to suspend it horizontally or a single HS7 to suspend it vertically Electro Voice recommends that only one TL606DW be suspended at one time in this manner Vertical is defined as having the long side vertical Full attention must be given to the instructions and limitations in the HS kit instruction sheet ACCESSORIES FOR SPECIAL SYSTEMS The TL606DW was designed to be used wit
9. ponse two way systems with excellent bass perfor mance to 40 Hz and controlled dispersion to 800 Hz a typical crossover frequency of two way systems When used with the dedicated XEQ 504 crossover equalizer the TL606DW can be combined with appropriate Electro Voice TransPlanar horns and DH series driv ers to form a passive two way system of unprecedented wide range response and lin earity However to extract the maximum per formance from the TL606DW a multiamp con figuration using the XEQ 2 or XEQ 3 cross over equalizer units is recommended so that full rated power may be applied to the low frequency system With a half power point of 40 Hz the TL606DW can also serve as the subwoofer component in large multiway sys tems FREQUENCY RESPONSE The TL606DW frequency response was mea sured in an anechoic environment at 10 feet on axis with swept one third octave pink noise The frequency response curve for the TLE06DW are shown in Figure 1 DIRECTIVITY The TL606DW directional characteristics were measured by running a set of polar response curves in EV s large anechoic chamber The test signal was one third octave pseudo ran dom pink noise centered at the frequencies indicated in Figure 2 The curves show horizon tal side to side dispersion when the enclosure s long axis is vertical The vertical up and down polar responses are also shown Additional typical information is provided in Figure 3 which shows 6
10. ppearance b certain specific items described in the individual product line statement s below or in the individual product data sheet or owner s manual c malfunction resulting from use or operation of the product other than as specified in the product data sheet or owner s manual d malfunction re sulting 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 Electro Voice or any of its authorized service representatives Obtaining Warranty Service To obtain warranty service a customer must deliver the product prepaid to Electro Voice or any of its authorized service representatives together with proof of purchase of the product in the form of a bill of sale or receipted invoice A list of authorized service representatives is available from Electro Voice at 600 Cecil Street Buchanan MI 49107 616 695 6831 and or Electro Voice West at 8234 Doe Avenue Visalia CA 93291 209 651 7777 Incidental and Consequential Damages Ex cluded Product repair or replacement and return to the customer 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 persons or property or loss of use Some states do not allow the exclusion or limitation of inci dental or consequential damages so the above limitation or exclusion may not apply to yo
11. put swept 100 800 Hz shall be at least 100 dB SPL usable frequency range shall extend from 30 Hz to 3 500 Hz nominal impedance shall be 4 ohms rated power handling capacity shall be at least 800 watts conforming to EIA standard RS 426A The enclosure shall be solidly constructed of 19 mm 4 in stock with all joints tightly fitted and glued Overall dimensions shall be no greater than 100 3 cm 39 5 in high by 57 2 cm 22 5 in wide by 44 7 cm 17 6 in deep Finish shall be black vinyl with leatherette pattern An independently certified suspension kit shall be available to suspend the TL606DW horizontally model HS6 or vertically model HS7 Internal 1 4 20 threaded fasteners pro vide a method of mounting high frequency devices to the system The system shall be the Electro Voice TL606DW WARRANTY Limited Electro Voice products are guaranteed against malfunction due to defects in materials or work manship for a specified period as noted in the individual product line statement s below or in the individual product data sheet or owner s manual beginning with the date of original purchase If such malfunction occurs during the specified period the product will be re paired or replaced at our option without charge The product will be returned to the customer prepaid Exclusions and Limitations The 1 Telflon is a registered trademark of DuPont Limited Warranty does not apply to a exterior finish or a
12. rs add ing another extra measure of reliability Specifically the TL606DW is designed to with stand the power test described in EIA Standard RS 426A The EIA test spectrum is applied for eight hours To obtain the spectrum the output of a white noise generator white noise is a particular type of random noise with equal energy per bandwidth in Hz is fed to a shaping filter with 6 dB per octave slopes below 40 Hz and above 318 Hz When measured with the usual constant percentage analyzer one third octave this shaping filter produces a spec trum whose 3 dB down points are at 100 Hz and 1 200 Hz with a 3 dB per octave slope above 1 200 Hz This shaped signal is sent to the power amplifier with the continuous power set at 800 watts into the 3 5 ohms EIA equiva lent impedance for the TL606DW 52 9 volts true rms Amplifier clipping sets instantaneous peaks at 6 dB above the continuous power or 3 200 watts peak 105 volts peak This procedure provides a rigorous test of both thermal and mechanical failure modes SUBPASSBAND SPEAKER PROTECTION Below the enclosure tuning frequency cone excursion increases rapidly Since acoustic output is also failing rapidly there is no utility in driving the system with signals much below the tuning frequency While such signals may be in the program material they are often extrane ous such as from record surface irregulari ties strong 5 to 25 Hz components or a dropped microphone Th
13. u 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 ap ply to burned voice coils or malfunctions such as cone and or coil damage resulting from improperly designed enclosures Electro Voice active electronics associated with the speaker systems are guaranteed for three 3 years from the date of original purchase Additional details are included in the Uniform Limited Warranty statement Service and repair address for this product Electro Voice Inc 600 Cecil Street Bucha nan Michigan 49107 Specifications subject to change without no tice 600 Cecil Street Buchanan Michigan 49107 MANUFACTURING PLANTS AT Hi BUCHANAN MI m NEWPORT TN mf SEVIERVILLE TN ml OKLAHOMA CITY OK m GANANOQUE ONT Electro Voice Inc 1997 W Lithoin U S A Part Number 534268 9711
14. y 40 Hz Impedance Minimum 4 ohms Input Connections Screw terminals 8 32 on barrier strip Enclosure Materials and Finish Black vinyl clad particle board TL606DW Low Frequency Speaker System e Designed for cinema stage use behind the screen THX approved e Extended 40 Hz response f e Two premium DL15W long throw woofers e Use as primary low frequency source in two way systems or as the subwoofer in multiway systems e Side mounted connection panel facilitates hookup when depth behind the screen is restricted e Optional XEQ 504 passive crossover replaces connection panel works with DH1A driver on HP940 or HP9040 horn e Optional HS6 or HS7 hanging kits through the box steel tubes provide safe suspension 1 THX is a registered trademark of Lucasfilm Ltd Suspension see Suspending TL606DW Enclosures section Two independently certified suspension kits are available the HS6 and HS7 Optional Horn Mounting Kits HMK 1 and HMK 2 can be used with the MP940 and HP9040 horns respectively Dimensions Height 100 3 cm 39 5 in Width 57 2 cm 22 5 in Depth 44 7 cm 17 6 in Net Weight 49 0 kg 108 Ib Shipping Weight 54 4 kg 120 Ib DESCRIPTION The Electro Voice TL606DW is an optimally vented direct radiator speaker system for high output reproduction of low frequencies to 40 Hz The TL606DW s design is based on the vented enclosure modeling technique of A N Thiele and
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